LEVEL 3 – STANDARD

Piping Valves Vessel

SD-NOC-PVV-143

Metallic Pipes

03 01/2020 Re-Issued for Use

02 10/2018 Re-Issued For Use (Cl .9.1, 11.1 and appendix-1 updated)
01 08/2017 Issued For Use
00 04/2017 First Issue
Rev. Date Purpose of the revision

Owning Entity: OPS/EC Other Approving Entities: OPS/FO, MP, HSEQ

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 2 of 39

Revision Notes

Rev.: Date: Revision Description

03 01/2020 General update to standardize the common sections among other PVV
standards, to correct cross references within the standard and with among the
different standards.
Clause 1: Scope updated to include relevant PVV standards.
Clause 2: SD-NOC-PVV-951 is included in reference documents.
Clause 4: Sourcing of materials revised to follow same requirements for
manufacturer and reseller.
Clause 5.3: Section for galvanized pipes added.
Clause 9.2: Requirements of WPS/WPQR for welded pipes added.
Clause 9.5: PMI requirement revised.
Clause 9.6: Impact test criteria for sub-size specimen added.
Clause 11: Quality control section revised for general update and to delete
duplicated information. Quality control requirements before shipment are
added. Quality control requirement by Company moved to SD-NOC-PVV-951.
Clause 12: Documentation requirement updated to ensure same requirements
are applicable if item is purchased from manufacturer or reseller.
Appendix 1:
All data sheets
(a) General update.
(b) Steelmaking requirement revised to standardize same requirement for stock and
newly manufactured items.
(c) Hardness testing requirement revised to add different units, to clarify hardness
requirement for welding.
DSS and SDSS data sheets
(d) Ferrite test criteria revised.
(e) Metallographic examination acceptance criteria for welds added.
DSS, SDSS and 6Mo data sheets
(f) Corrosion testing acceptance criteria revised.

Remarks:
This update has no impact on QC codes.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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Contents
1. SCOPE.......................................................................................................................5

2. REFERENCE DOCUMENTS..................................................................................... 5

3. DEFINITIONS / ABBREVIATIONS............................................................................ 8
3.1 Definitions.......................................................................................................................... 8
3.2 Abbreviations..................................................................................................................... 9

4. SOURCING OF MATERIALS.................................................................................. 10

5. MATERIALS.............................................................................................................10
5.1 Copper-Nickel Pipes........................................................................................................ 10
5.2 Austenitic-Ferritic Stainless Pipes....................................................................................10
5.3 Galvanized Pipes............................................................................................................. 11

6. SUBSTITUTION OF MATERIAL..............................................................................11

7. Dimensions............................................................................................................. 11
7.1 Schedule.......................................................................................................................... 11
7.2 Length.............................................................................................................................. 11
7.3 Straightness..................................................................................................................... 11

8. ENDS........................................................................................................................11
8.1 Bevel ends....................................................................................................................... 11
8.2 Threaded ends................................................................................................................. 11

9. MANUFACTURE AND TESTING.............................................................................11

9.1 General............................................................................................................................ 11
9.2 Welded Pipes................................................................................................................... 11
9.3 Bevels.............................................................................................................................. 12
9.4 NDT..................................................................................................................................12
9.5 PMI...................................................................................................................................12
9.6 Mechanical Testing.......................................................................................................... 12
9.7 Repairs of Defects........................................................................................................... 13

10. CLEANING...............................................................................................................13

11. INSPECTION........................................................................................................... 13

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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11.1 General Quality Requirements.........................................................................................13

11.2 Quality Control before Shipment......................................................................................13
11.3 Quality Control by Company............................................................................................ 14

12. DOCUMENTATION.................................................................................................. 14
12.1 Certificate of Conformity.................................................................................................. 14
12.2 Material Certificates......................................................................................................... 14
12.3 Pressure Test and Nondestructive Electric Test Certificates............................................14

13. PREPARATION FOR SHIPMENT............................................................................15

13.1 Marking............................................................................................................................ 15
13.2 Protection.........................................................................................................................15
13.3 Packing............................................................................................................................ 16

Appendix 1 Material Data Sheets (MDSs)...................................................................17

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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1. SCOPE
This standard defines the minimum requirements for the procurement, manufacture, testing,
inspection, preparation for shipment and documentation of piping made of carbon, austenitic
stainless steels, Duplex, Super Duplex, 6Mo, Copper-Nickel and Titanium alloys.
This standard applies to piping scope of work. Components shall be in conformance with
ASME B31.3 code, their relevant standards and local regulations if any.
This standard applies to the materials as defined by SD-NOC-PVV-112.
The standard shall be read in conjunction with:
 SD-NOC-PVV-612 that stipulates additional requirements for pipes used in sour service,
 SD-NOC-PVV-614 that stipulates additional requirements for pipes made of duplex and
super duplex material,
 SD-NOC-PVV-615 that stipulates additional requirements for pipes made of super
austenitic (6Mo type) material,
 SD-NOC-PVV-616 that stipulates additional requirements for welding of Titanium
materials,
 SD-NOC-PVV-620 that stipulates additional requirements for pipes made of copper-nickel
material.
This standard does not apply to pipes made of plastic materials.
The present standard is designed to allow the use of individual Material Data Sheet (MDS) for
procurement and manufacturing stage. The MDSs identify additional requirements deemed
necessary by Company in order for the materials to meet their intended life of service. The
MDSs are listed and detailed in Appendix 1.

2. REFERENCE DOCUMENTS
The reference documents listed below form an integral part of this document.
Unless otherwise indicated, the applicable version of these documents, including relevant
appendices and supplements, is the latest revision published.
For the Material Data Sheets in Appendix 1, the applicable version of these documents,
including relevant appendices and supplements, is the latest revision published.
Any divergence between any of the contractual reference documents and this standard must be
reported to Company for decision. In such a case, and unless otherwise agreed or decided by
Company, it is understood that the most stringent requirement shall apply.
Exceptions to, or deviations from, this standard are not permitted unless previously accepted in
writing by Company. For this purpose, Manufacturer's or Reseller’s requests for substitution or
change of any kind shall be completed with all pertinent information required for Company
assessment under a specific deviation request. In case of approval, such approval shall be valid
only for a specific case and shall not be construed as having general validity for other
applications.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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External Documents
Unless otherwise indicated, the applicable version of these documents, including relevant
appendices and supplements, is the latest revision published.

Reference Title
API RP 578 Material Verification Program for New and Existing Alloy Piping Systems
API SPEC 5L Specification for Line Pipe
API SPEC 6A Specification for Wellhead and Christmas Tree Equipment
ASME B1.20.1 Pipe Threads, General Purpose (Inch) (Except Dry Seal)
ASME B16.25 Butt Welding Ends
ASME B31.3 Process Piping
ASTM A53/A53M Standard Specification for Pipe Steel, Black and Hot-Dipped Zinc-Coated
Welded and Seamless
ASTM A106/A106M Standard Specification for Seamless Carbon Steel Pipe for High-
Temperature Service
ASTM A153/A153M Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel
Hardware
ASTM A240/A240M Standard Specification for Chromium and Chromium-Nickel Stainless
Steel Plate, Sheet, and Strip for Pressure Vessels and for General
Applications
ASTM A312/A312M Standard Specification for Seamless , Welded, and Heavily Cold Worked
Austenitic Stainless Steel Pipes
ASTM A333/A333M Standard Specification for Seamless and Welded Steel Pipe for Low-
Temperature Service and Other Applications with Required Notch
Toughness
ASTM A358/A358M Standard Specification for Electric-Fusion-Welded Austenitic Chromium-
Nickel Stainless Steel Pipe for High-Temperature Service and General
Applications
ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel
Products
ASTM A380/A380M Standard Practice for Cleaning, Descaling, and Passivation of Stainless
Steel Parts, Equipment, and Systems
ASTM A516/A516M Standard Specification for Pressure Vessel Plates, Carbon Steel, for
Moderate- and Lower-Temperature Service
ASTM A530/A530M Standard Specification for General Requirements for Specialized Carbon
and Alloy Steel Pipe
ASTM A923 Standard Test Methods for Detecting Detrimental Intermetallic Phase in
Duplex Austenitic/Ferritic Stainless Steels
ASTM A671/A671M Standard Specification for Electric-Fusion-Welded Steel Pipe for
Atmospheric and Lower Temperatures

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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Reference Title
ASTM A790/A790M Standard Specification for Seamless and Welded Ferritic/Austenitic
Stainless Steel Pipe
ASTM A928/A928M Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel
Pipe Electric Fusion Welded with Addition of Filler Metal
ASTM B338 Standard Specification for Seamless and Welded Titanium and Titanium
Alloy Tubes for Condensers and Heat Exchangers
ASTM B600 Standard Guide for Descaling and Cleaning Titanium and Titanium Alloy
Surfaces
ASTM B861 Standard Specification for Titanium and Titanium Alloy Seamless Pipe
ASTM B862 Standard Specification for Titanium and Titanium Alloy Welded Pipe
ASTM E1417 Standard Practice for Liquid Penetrant Testing
ASTM E1447 Standard Test Method for Determination of Hydrogen in Titanium and
Titanium Alloys by the Inert Gas Fusion Thermal Conductivity/Infrared
Detection Method
ASTM E165/E165M Standard Practice for Liquid Penetrant Examination for General Industry
ASTM E562 Standard Test Method for Determining Volume Fraction by Systematic
Manual Point Count
ASTM E709 Standard Guide for Magnetic Particle Testing
ASTM E1245 Standard Practice for Determining the Inclusion or Second-Phase
Constituent Content of Metals by Automatic Image Analysis
ASTM G48 Standard Test Method for Pitting and Crevice Corrosion Resistance of
Stainless Steels and Related Alloys by Use of Ferric Chloride Solution
EEMUA 234 90/10 Copper Nickel Alloy Piping for Offshore Applications
EN 10204 Metallic products - Types of inspection documents
NACE MR0175 / Petroleum and Natural Gas Industries - Materials for use in
ISO 15156 (All parts) H2S-Containing Environments in Oil and Gas Production – All Parts
ISO 17781 Test Methods for Quality Control of Microstructure of Ferritic/Austenitic
(duplex) Stainless Steels

North Oil Company Documents

Unless otherwise indicated, the applicable version of these documents, including relevant
appendices and supplements, is the latest revision published.

Reference Title
SD-NOC-PVV-112 Piping Material Classes
SD-NOC-PVV-611 Welding of Pressure Containing Piping and Equipment
SD-NOC-PVV-612 Piping and Equipment Subject to Severe Sour Service - Metallurgical and
Welding Requirements

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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Reference Title
SD-NOC-PVV-614 Piping and Vessels in Duplex and Super-Duplex Stainless Steel: Material
and Welding
SD-NOC-PVV-615 Stainless Steel type 6Mo: Material and Welding
SD-NOC-PVV-616 Welding of Titanium pipe and fittings
SD-NOC-PVV-620 Fabrication and Welding of Piping Systems in Copper-Nickel and
Associated Materials
SD-NOC-PVV-951 Technical Assessment and Monitoring of Pipes, Fittings, Flanges and
Bolting Manufacturers

3. DEFINITIONS / ABBREVIATIONS
3.1 Definitions
Company: North Oil Company, also referred to as NOC
Design Minimum Temperature: Lowest component temperature expected in service. This
temperature may establish special design requirements and material qualification requirements.
Cryogenic service: Service with design minimum temperature below minus 46°C and
continuous operating service temperature below minus 41°C.
Buyer: Natural person or legal entity that establishes the order and purchases the equipment
covered by the standard herein. This standard is an integral part of the order.
Inspection Body: Organization independent from Manufacturer, designated by Buyer and
responsible for monitoring the equipment manufacture from the reception of the raw materials to
the delivery of the piping or equipment.
Inspection Body shall insure that the following are respected:
 The regulations when they are applicable to the equipment concerned by the standard
herein,
 The technical requirements in the Buyer’s order.
The type, number and distribution of the documents to be compiled by Inspection Body shall be
defined in the contract binding Company or the Engineering Company.
Inspection Body can be Company or the Engineering Company.
Engineering Company: Natural person or legal entity who carries out the services
corresponding to the design and supply of the equipment covered by the standard herein and in
particular collects or establishes the data allowing Manufacturer to size the equipment so that it
can satisfy the process function for which it is destined.
Manufacturer: Manufacturer has the responsibility of complying with all of the applicable
requirements and assuring that all work done by others also complies.
Reseller / Stockist: The firm that acts as an intermediary supplier between Manufacturer and
Buyer but does not itself carry out manufacturing operations.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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Shall: Verbal form used to indicate requirements strictly to be followed.

Approval: A written response from Company confirming agreement to a proposal by
Manufacturer or Reseller.

3.2 Abbreviations
ASS Austenitic Stainless Steel
CE Carbon Equivalent
CRA Corrosion Resistant Alloys
CS Carbon Steel
CVN Charpy V Notch
DMT Design Minimum Temperature
DSS Duplex Stainless Steel
HAZ Heat Affected Zone
HB Hardness Brinell
HCW Heavily Cold-Worked
HRB Hardness Rockwell B
HRC Hardness Rockwell C
HV Hardness Vickers
LTCS Low Temperature Carbon Steel
MDS Material Data Sheet
MTC Material Test Certificate
NDT Non Destructive Test
NPS Nominal Pipe Size
PMI Positive Material Identification
PREN Pitting Resistance Equivalent Number
RT Radiographic Testing
SASS Super Austenitic Stainless Steel
SDSS Super Duplex Stainless Steel
WPS Welding Procedure Specification
WPQR Welding Procedure Qualification Record
WT Wall Thickness
6Mo super-austenitic 6% Molybdenum stainless steel

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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4. SOURCING OF MATERIALS
Materials can be supplied from stocks from a Reseller or can also be manufactured for and
supplied from a specific order directly from Manufacturer(s) or through a Reseller.
The following shall be met as a minimum:
 The list of potential Resellers shall have the prior approval of Company,
 The list of proposed Manufacturers shall be within the Company referenced list. If not, the
list of Manufacturer shall be submitted to Company for technical assessment and approval
prior to order: see SD-NOC-PVV-951. As a minimum to be communicated to Company:
- Previous experience list,
- Previous base material data if required by Company,
- Fabrication procedure,
- Inspection/QAQC procedures,
- Raw material manufacturers list,
- Sub-suppliers list (for welding or other specific activity).
 Reseller or Manufacturer shall ensure that the testing and related acceptance
requirements stated in this standard are fulfilled: any non-compliance shall be immediately
reported to Company for further evaluation.
 The certificates made by Reseller are not acceptable. However, Reseller is allowed to
perform additional testing on the project materials in order to meet the requirements of this
standard.
In addition, Company or Buyer reserves the right to require any counter-analysis or confirmatory
tests (chemical analysis, mechanical tests, thickness measurements, NDT, etc.) and to
undertake a technical assessment. In case of failure, the complete supply will be suspended
until further investigation is performed: this can lead to the replacement of the supply, complete
or partial.

5. MATERIALS
Manufacturer or Reseller shall meet requirement of the relevant Material Data Sheet(s) given in
Appendix 1.
Any deviation shall be declared to and approved by Company before purchase order be placed,
and should there be any change of proposed material after purchase order be placed then any
new deviation shall be reported to and approved by Company at the soonest and in any way
prior to shipment.

5.1 Copper-Nickel Pipes

Copper-Nickel pipes shall be procured according to SD-NOC-PVV-620.

5.2 Austenitic-Ferritic Stainless Pipes

Pipes shall also comply with SD-NOC-PVV-614 in addition to present standard.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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5.3 Galvanized Pipes

Galvanized pipes shall be Hot Dip Galvanized (HDG) in accordance with ASTM A153/A153M;
electrodeposited coating of zinc is not acceptable.

6. SUBSTITUTION OF MATERIAL
Any substitution of material by a material considered as “equivalent” by Reseller or
Manufacturer shall require the prior approval by Company.

7. Dimensions
7.1 Schedule
Pipes schedules shall be as specified in SD-NOC-PVV-112.

7.2 Length
Except for Cu-Ni pipe, the recommended pipe lengths is minimum 5.33 m (17.5 ft.).
Circular weld jointers to attain the minimum allowable length is not allowed.

7.3 Straightness
For pipes as per ASTM standard specification, in case no straightness tolerances are specified,
the ones defined by API SPEC 5L shall be applied.

8. ENDS
8.1 Bevel ends
Pipes ends (except threaded end) are preferably delivered with ends bevel as per
ASME B16.25.

8.2 Threaded ends

The ends of galvanized steel pipes up to NPS 2 are preferably threaded, and in accordance
with ASME B1.20.1. The thread end can be substituted with plain end if indicated in SD-NOC-
PVV-112.
Threads of galvanized pipes shall be free of galvanizing.

9. MANUFACTURE AND TESTING

9.1 General
All pipe manufacturing stages shall be performed by Manufacturer in its qualified mill.
Girth butt-welds are not allowed.
All pipes shall be free from bulges, dents, flat area, leaks, and cracks, welding defects or visual
laminations.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
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9.2 Welded Pipes

Welded pipes limitations shall comply with SD-NOC-PVV-112 requirements.
WPS (pre-qualified or newly proposed) and supporting WPQR shall be communicated to
Company for review no more than two weeks after placement of Purchase Order.
WPS and WPQR, as well as welders qualification, shall comply with SD-NOC-PVV-611 and
additional Company standard related to the considered material.
The inside reinforcement of the weld must be ground-off at each end of the longitudinally-
welded pipe. This machining shall be done over a length of 10 cm and must leave a gradual
transition.

9.3 Bevels
Any beveling of the ends of the pipes shall be performed by machine or by mechanized flame or
plasma cutting. The process used shall produce clean, square, burr-free bevel cuts.
Wherever flame or plasma cutting is employed, all oxides and traces of previously melted metal
shall be removed by grinding or machining.
For corrosion resistant alloy pipes, flame cutting is not permitted: mechanized plasma cutting is
acceptable.

9.4 NDT
For welded pipes, the NDT procedures and acceptance criteria shall be compliant to SD-NOC-
PVV-611 and additional Company standard related to the considered material.

9.5 PMI
PMI on CRA materials shall be performed as per API RP 578 and on 100% of pipes. And for
welded CRA pipes, PMI shall also be performed on cap area, and root area when accessible.
PMI shall be performed by the party supplying the items to the Buyer. PMI shall be part of final
inspection before packing. The PMI report as a minimum shall include purchase order number,
item number, heat number, quantity and confirmation of compliance to required chemical
composition.

9.6 Mechanical Testing

Location of test sampling shall be compliant to the international codes or standards referenced
in the corresponding datasheet.
For Charpy-V notch impact testing, in case material shape or thickness does not permit full size
specimens, sub-size specimens shall be used as per rules detailed in para. 323.3 of
ASME B31.3.
If test temperature is not reduced, the requirements for absorbed energy shall be those for full
size specimen multiplied by the corresponding factor shown in the below table:

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
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Multiplying factors for sub-size specimens

10 x 10 mm (full size) 1
10 x 7.5 mm 5/6
10 x 6.7 mm 7/9
10 x 5 mm 2/3

Reseller or Manufacturer shall communicate to Company the detailed sketch with location of
test sampling and size and condition of the tested sample, when requested by Company.
The frequency and program of Production Testing (if any) shall be agreed at bid stage. It shall
as a minimum be compliant with applicable ASTM standards.
Typically, the minimum quantity of production tests should be one test for fifty pipes or one test
for 250 m cumulative length of pipes produced.

9.7 Repairs of Defects

Repair on parent material by welding is not acceptable.
Only repair on welds can be accepted, when covered by a repair WPS approved by Company.

10. CLEANING
All stainless steel pipes (austenitic, super-austenitic, duplex, super-duplex) and titanium pipes
shall be pickled and passivated.

11. INSPECTION
11.1 General Quality Requirements
Manufacturer shall ensure material traceability recording from raw material up to final product.
To this extent, individual identification for each pipe is required:
- the original markings shall be easily visible on products,
- all pipes shall be fully traceable and correctly identified, particularly to the heat and test
numbers of the matching certificates.
Manufacturer shall ensure radiographic examination traceability, and for welded pipes shall
ensure that RT report is clearly stating that the radiographic examination had been performed
after final heat treatment.
Products shall be guaranteed by an inspection certificate (conformity, material test, etc.). If
Manufacturer does not have the necessary means of examination, these tests may be
subcontracted at a place approved by Company.
Quality control activities include dimensional checks and records of each pipe.

11.2 Quality Control before Shipment

Quality control inspection shall be conducted by the Reseller or Manufacturer at its workshop or
mill so as to make sure of the proper execution of the order, before shipment. It shall include at
the minimum:

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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- Visual inspection of each pipe (no physical damage, no oxidation, presence of

adequate bevel, etc),
- Confirmation of traceability of heat number of each pipe,
- Compliant marking for each pipe,
- Confirmation of compliance of each MTC to referred international standards and SD-
NOC-PVV-143.
Shipment of pipes, from stock or newly manufactured, will take place only after approval of the
MTCs.

11.3 Quality Control by Company

Minimum quality control requirements by Company have been specified in SD-NOC-PVV-951.

12. DOCUMENTATION
Manufacturer documentation shall be available in digital format unless otherwise specified.
The following documents shall be supplied to Company:
 Certificate of conformity to this standard,
 Material Test Certificate (MTC) compliant to applicable material datasheet, issued by
Manufacturer, and when pipe is supplied through Reseller such MTC shall be endorsed by
Reseller,
 For welded pipes, WPS and supporting detailed WPQR shall be communicated to
Company for approval no more than two weeks after placement of Purchase Order,
 PMI reports for CRA pipes,
 Any specific report (corrosion resistance, metallographic examination, NDT, pressure test,
etc) required by corresponding datasheet or called by Purchase Order.
 Inspection and Test Plan upon Company request.
At specific request from Company or Inspector, the following documentation shall also be
available for pipe base material, and weld area (if any):
 Original copy of MTC,
 Mother material certificates,
 Heat treatment records,
 Destructive and non-destructive examination tests reports,
 Manufacturer Workshop certificate (when applicable).

12.1 Certificate of Conformity

Manufacturer or Reseller shall submit certificate of conformity to this standard, the respective
MDSs and to the ASTM standards specified in the requisitions for pipes.

12.2 Material Certificates

The material certificates shall be of EN 10204 type 3.1, giving the results of the chemical
analysis and of the mechanical tests carried out in accordance with the requirements of the
reference codes and standards.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

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Material certificates EN 10204 type 3.1 of the mother material shall be provided in addition to
the type 3.1 material certificates of the finished products, if requested by Company.
The material certificates shall also include additional supplementary requirements or additional
tests, when they are indicated in the purchase order or datasheet.

12.3 Pressure Test and Nondestructive Electric Test Certificates

Manufacturer shall submit according to EN 10204 type 3.1 pressure test certificates or
EN 10204 type 3.1 nondestructive electric test certificates, when this alternative test is
authorized by the applicable Material Data Sheet of Appendix 1.

13. PREPARATION FOR SHIPMENT

13.1 Marking
Marking shall only be made by the pipe Manufacturer itself.

13.1.1 Identification of Materials

The following information shall be marked by cold stamping on each length of pipe for NPS 2
and over, and on two labels attached to each bundle of pipes for pipes smaller than NPS 2:
 Manufacturer’s name and location
 Specification and grade of material
Dual certified materials shall be marked showing both grades (as example 316/316L)
 Heat number
 Batch number
 Nominal pipe size
 Pipe wall thickness or schedule number.
However, pipes less than 3 mm thick and Copper alloy pipes shall not be marked by stamping
but by etching.

13.1.2 Markings Specific to the Order

All lengths of pipes shall be identified by marking with color marks and code numbers as and if
specified in the order.
Colour codes shall be as follows:
Material Colour RAL
Plain Carbon Steel Graphite black 9011
Low Temperature Carbon Steel Zinc yellow 1016
Type 316 / 316L Stainless Steel Light Blue 5012
Glass Reinforced Plastic (GRP) Self colour -
Duplex Stainless Steel UNS S31803/S32205 Light Green 6027
Super Duplex Stainless Steel UNS S32750/S32760 Red 3028

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 16 of 39

6Mo White 9010

Titanium / Cu-Ni 90/10 Self colour -

13.2 Protection

13.2.1 Carbon Steel Pipes

Threaded pipe ends shall be greased and protected by metallic female caps.
Beveled carbon steel pipe ends shall be protected by a peel-off varnish.
Pipe ends shall be protected by plastic caps.

13.2.2 CRA Pipes

During cleaning, transport, fabrication, testing and/or storage, all CRA steel pipes shall be fully
protected against carbon steel contamination and all CRA pipes shall be fully protected against
the risks of saline corrosion.
If coating is used to protect CRA pipes, it shall not:
 contain chlorides (>25 ppm) or other substances that might damage these pipes
 cover the bevels, if any,
 be detrimental to welding.

13.3 Packing
Sea-packing shall be detailed by appropriate purchasing specification.
For all pipes, the packing shall be water-proof. It shall meet the conditions of all stages of
transport (rail, road, air and sea).

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 17 of 39

Appendix 1 Material Data Sheets (MDSs)

The Material Data sheets shall be used as supplementary requirements to existing Material
Specifications (ASTM, etc.).
The MDSs reflect the additional requirements of Company imposed on Manufacturers and
Resellers in order to maintain a quality level that is consistent for the material being supplied.
The MDSs shall not be used as stand-alone documents for procuring and manufacturing of
pipes.
The following minimum information shall be detailed to Manufacturer or Reseller at bid stage:
 Product description
 Material Data Sheet
 Dimensions and tolerances
 Quantities with additional material for qualification testing purpose (if any)
 Coating
 The requirements from the present Technical Standard
 Any other specific project requirements (design pressure and temperature, service, fluid,
color coding, etc.).

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 18 of 39

Material Data Sheets Index

MDS N° Revision N° Material Standard Grade(s) Class

DS-PVV-143-01 2 ASTM A106/A106M B
ASTM A53/A53M B
DS-PVV-143-02 2 ASTM A333/A333M 6
DS-PVV-143-03 2 ASTM A671/A671M CC65 22
DS-PVV-143-04 2 ASTM A312/A312M TP316L
DS-PVV-143-05 2 ASTM A358/A358M TP316L 1 or 3
DS-PVV-143-06 2 ASTM A790/A790M UNS S31803
UNS S32205
DS-PVV-143-07 2 ASTM A928/A928M UNS S31803 1 or 3
UNS S32205 1 or 3
DS-PVV-143-08 2 ASTM A790/A790M UNS S32750
UNS S32760
DS-PVV-143-09 2 ASTM A928/A928M UNS S32750 1 or 3
UNS S32760 1 or 3
DS-PVV-143-10 2 ASTM A312/A312M UNS S31254
DS-PVV-143-11 2 ASTM A358/A358M UNS S31254 1 or 3
DS-PVV-143-12 2 ASTM B861 2
ASTM B862 2

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 19 of 39

Carbon steel (CS) D/S No.:

DS-PVV-143-01
PVV-112 Piping
AG1, BG1
Class Rev. 2

Product ASTM A106 Gr.B, ASTM A53 Gr.B

NACE Not required.

Seamless pipes only.

Carbon steel pipes can be manufactured either by cold or hot processes. However:
Manufacturing Process - Pilger process (i.e. hot or cold rolling) is not allowed for carbon steel materials,
- Pipes manufactured by a cold process shall be subject to a heat treatment after forming
(i.e. normalization).

Specific Requirements ASTM A106 (S6)

Steelmaking Steel shall be fully killed with preliminary process being basic-oxygen or electric furnace.

Product Finish As per referred ASTM standards

Heat treatment Hot finished or normalized condition.

%S ≤ 0.025; %P ≤ 0.030, %C ≤ 0.23

Chemistry %CE ≤ 0.43

Hardness Testing As per referred ASTM standards

Charpy V-Notch testing according to ASTM A370 or equivalent, at minus 29o C is

Impact Testing required for wall thickness ≥ 12.7 mm.
Minimum absorbed energy: 18 J (average) and 14 J (single).

Tensile requirements As per referred ASTM standards

Ferrite Test Not required

Metallographic
Not required
Examination
Corrosion Testing Not required

Hydrostatic Test All finished products and as per referred ASTM standard.

All finished product (Alternative to Hydrostatic test).

Non-Destructive Testing Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.
Positive Material
Not required
Identification
Welding Not allowed

Defect repairs Repair by welding is not allowed.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 20 of 39

Low Temperature Carbon Steel (LTCS) D/S No.:

DS-PVV-143-02
PVV-112 Piping AD1, AZ1, BD1, BZ1, DD1, DZ1, ED1, FD1, FE1,
Class GD1, GE1, GF1 Rev. 2

Product ASTM A333 Gr.6

NACE MR0175 / ISO 15156

Seamless pipes only.

Carbon steel pipes can be manufactured either by cold or hot processes. However:
- Pilger process (i.e. hot or cold rolling) or expansion process for hot finished pipes is
Manufacturing Process subject to Company approval,
- Cold finishing (drawing) is permissible provided that subsequent heat treatment is
performed. (i.e. normalization).

Specific Requirements None

The addition of alloying elements such as Boron (B), Titanium (Ti) shall not be
Steelmaking intentionally added to the steel. Only residuals are acceptable.

Product Finish As per referred ASTM standard

Materials shall be delivered in normalized or quenched and tempered condition.

Heat treatment For quenched and tempered delivery condition, tempering temperature shall be stated in
the material certificate.

Chemistry As per SD-NOC-PVV-612

Maximum hardness as stated in NACE MR0175 / ISO 15156 – 2 (22 HRC or 248 HV10
Hardness Testing or 237 HBW)

Charpy V-Notch testing according to ASTM A370 or equivalent, with 1 set of three 10x10
mm CVN specimens.
Impact Testing Testing temperature: -46° C.
Acceptance criteria: Minimum absorbed energy: 27 J (average) and 20 J (single)

Tensile requirements As per referred ASTM standard

Ferrite Test Not required

Metallographic
Not required
Examination

Corrosion Testing Not required

Hydrostatic Test All finished product and as per referred ASTM standard.

All finished product (Alternative to Hydrostatic test).

Non-Destructive Testing Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.

Positive Material
Not required
Identification

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 21 of 39

Low Temperature Carbon Steel (LTCS) D/S No.:

DS-PVV-143-02
PVV-112 Piping AD1, AZ1, BD1, BZ1, DD1, DZ1, ED1, FD1, FE1,
Class GD1, GE1, GF1 Rev. 2

Welding Not allowed

Defect repair Repair by welding is not allowed.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 22 of 39

Low Temperature Carbon Steel (LTCS) D/S No.:

DS-PVV-143-03
PVV-112 Piping AD1, AZ1, BD1, BZ1, DD1, DZ1, ED1, FD1, FE1,
Class GD1, GE1, GF1 Rev. 2

Product ASTM A671 Gr.CC65 cl.22

NACE MR0175 / ISO 15156

Formed from plate. Plate shall be in accordance with ASTM A516 Grade 65.
Manufacturing Process Pipe shall be welded using Electric fusion welding process.

Specific Requirements S2, S7, S11, S14

The plate material shall be vacuum degassed whilst molten, in accordance with
Steelmaking Supplementary Requirement S17 of ASTM A516.

Product Finish As per referred ASTM standard.

Heat treatment Materials shall be delivered in normalized or normalized and stress relieved condition.

Chemistry As per SD-NOC-PVV-612

Maximum hardness as stated in NACE MR0175 / ISO 15156 – 2 (base metal 22 HRC
Hardness Testing or 248 HV10 or 237 HBW) and SD-NOC-PVV-612 (weld metal and HAZ 248 HV5).
Hardness survey as per SD-NOC-PVV-612.

Charpy V-Notch testing according to ASTM A370 or equivalent, at minus 46 deg.C is

required for thickness ≥ 6 mm.
Charpy specimens shall be taken from both the longitudinal and transverse directions
at 1/2T location, where T is the maximum pipe/plate thickness. For thicknesses greater
than 30 mm one additional set shall be taken from the 1/4T location.
Impact Testing Impact specimens shall also be taken from the weld centreline and HAZ locations at 2
mm below the outer surface. Additional specimens shall be taken from the weld
centreline and HAZ locations at ½ T location for thickness > 20 mm.
The minimum absorbed energy for full size specimens shall be 27 J (average) and
20 J (single).

The weld shall have a tensile strength not less than the specified minimum one of the
Tensile requirements plate.

Ferrite Test Not required

Metallographic
Not required
Examination

Corrosion Testing Not required

Hydrostatic Test All finished product and as per referred ASTM standard

100% RT after heat treatment on entire weld seam length. RT shall be stated in the
Non-Destructive Testing material certificate.
Magnetic Particle Examination: S7

Positive Material
Not required
Identification

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 23 of 39

Low Temperature Carbon Steel (LTCS) D/S No.:

DS-PVV-143-03
PVV-112 Piping AD1, AZ1, BD1, BZ1, DD1, DZ1, ED1, FD1, FE1,
Class GD1, GE1, GF1 Rev. 2

Welding procedure and operators shall be qualified according to standard requirements

and endorsed by a third party, and shall comply to SD-NOC-PVV-611 and SD-NOC-
PVV-612.
Welding Welding consumables shall conform to ASME SFA5.17 or ASME SFA5.23 and
with %Ni < 1.00. Welding consumable certificates shall be EN 10204 3.1 (chemical
analysis, impact test at DMT and tensile test) and part of the final documentation.

Weld repair on plate material is not allowed.

Defect repairs Weld repair on seam weld is allowed if heat treated afterwards. Welding procedure and
qualification shall be submitted to Company for approval.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 24 of 39

Austenitic Stainless Steel (ASS) D/S No.:

DS-PVV-143-04
PVV-112 Piping
AS1, BS1, DS1, ES1, FS1, GS1
Class Rev. 2

Product ASTM A312 Gr.TP 316L (Note 1)

NACE MR0175 / ISO 15156

Seamless pipes only.

ASTM A312/A312M HCW and welded pipes are not permitted.
Manufacturing Process Cold finishing (drawing) is permissible provided that subsequent heat treatment is
performed.

Specific Requirements S1

Steelmaking Ladle full chemical analysis shall be mentioned in the certificate.

Pickling and passivation is mandatory except in case of bright annealing and shall be
Product Finish performed according to ASTM A380/A380M.

Heat treatment Materials shall be delivered in solution annealed and water quenched condition.

Chemistry The chemical composition shall meet NACE MR0175 / ISO 15156-3 requirements.

Hardness Testing Maximum hardness as stated in NACE MR0175 / ISO 15156 – 3 (22 HRC)

Impact testing Not required

Tensile requirements As per referred ASTM standard

Ferrite Test Not required

Metallographic
Not required
Examination

Corrosion Testing Not required

Hydrostatic Test All finished products and as per referred ASTM standard.

All finished product (Alternative to Hydrostatic test).

Non-Destructive Testing Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.

Positive Material
As per SD-NOC-PVV-143
Identification

Welding Not allowed

Defect repairs Repair by welding is not allowed.

Material certificates shall be at least to EN 10204 3.1 type.

Certification Dual certified pipes TP316/316L is allowed provided the chemical composition of L
grade is fulfilled as per this MDS.

Note: 1) Grade 316 is not acceptable for replacement of grade 316L.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 25 of 39

Austenitic Stainless Steel (ASS) D/S No.:

DS-PVV-143-05
PVV-112 Piping
AS1, BS1, DS1, ES1, FS1, GS1
Class Rev. 2
(Note 1)
ASTM A358 Gr.316L cl.1 (cl.3 may be acceptable upon Company approval at
Product bid stage)

NACE MR0175 / ISO 15156

Manufacturing Process Steel plate ASTM A240/A240M

Specific Requirements None

Steelmaking Ladle full chemical analysis shall be mentioned in the certificate.

Product Finish Pickling and passivation shall be performed according to ASTM A380/A380M.

Heat treatment Materials shall be delivered in solution annealed and water quenched condition.

Chemistry The chemical composition shall meet NACE MR0175 / ISO 15156-3 requirements.

Maximum hardness as stated in NACE MR0175 / ISO 15156 – 3 (base metal 22 HRC)
Hardness Testing and SD-NOC-PVV-612 (weld metal and HAZ 250 HV5). Hardness survey as per SD-
NOC-PVV-612.

Impact Testing Not required

The weld shall have a tensile strength not less than the specified minimum one of the
Tensile requirements plate.

Ferrite Test Not required

Metallographic
Not required
Examination

Corrosion Testing Not required

Hydrostatic Test All finished products and as per referred ASTM standard.

As per SD-NOC-PVV-612
Non-Destructive Testing 100% RT after heat treatment on entire weld seam length. RT shall be stated in the
material certificate.

Positive Material
As per SD-NOC-PVV-143
Identification

Welding procedure and operators shall be qualified according to standard requirements

and endorsed by a third party, and shall comply to SD-NOC-PVV-611 and SD-NOC-
Welding PVV-612.
Use of GMAW (except for tacking), FCAW is subject to Company approval.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 26 of 39

Austenitic Stainless Steel (ASS) D/S No.:

DS-PVV-143-05
PVV-112 Piping
AS1, BS1, DS1, ES1, FS1, GS1
Class Rev. 2
Weld repair on plate material is not allowed.
Defect repairs Weld repair on seam weld is allowed if heat treated afterwards. Welding procedure and
qualification shall be submitted to Company for approval.
Material certificates shall be at least to EN 10204 3.1 type.
Certification Dual certified pipes 316/316L is allowed provided the chemical composition of L grade
is fulfilled as per this MDS.

Note: 1) Grade 316 is not acceptable for replacement of grade 316L.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 27 of 39

Duplex Stainless Steel (22Cr or DSS) D/S No.:

DS-PVV-143-06
PVV-112 Piping
AX1, BX1, DX1, EX1, FX1, GX1
Class Rev. 2

Product ASTM A790 S31803 (S32205 may be acceptable upon Company approval at bid stage)

NACE MR0175 / ISO 15156

Seamless pipes only.

Manufacturing Process Cold finishing (drawing) is permissible provided that subsequent heat treatment is
performed.

S1
Specific Requirements All the elements shall be reported on certificates (C, Mn, Si, S, P, Ni, Cr, Mo, Cu, N and
elements deliberately added if any).

Electric arc or electric furnace steel making process + alloy refining by Argon Oxygen
Steelmaking Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) process.
Raw material steel maker supplier shall be indicated in the material certificate.

Pickling and passivation is mandatory except in case of bright annealing and shall be
Product Finish performed according to ASTM A380/A380M.
Solution annealed followed by water quenching.
Heat treatment conditions shall be detailed in the certificate. (Soaking time and
Heat treatment temperature, quenching temperature at starting and finishing).
Max. time lapse from furnace to quench medium shall be less than 60sec.
As per SD-NOC-PVV-614
Chemistry PREN shall be ≥ 34

Hardness Testing The maximum hardness shall be 28HRC.

Charpy V-Notch testing according to ASTM A923 method B or equivalent, at minus 46

Deg.C is required for thickness ≥ 6 mm.
The minimum absorbed energy for full size specimens shall be 54 J (average) and
Impact Testing 43 J (single).
For WT ≤ 20 mm, one set of three specimens shall be sampled. In case of WT > 20 mm,
two sets of three specimens shall be taken.

Tensile requirements As per referred ASTM standard

As per ASTM E562 or image analysis ASTM E1245, and shall be within the
Ferrite Test range 35-60%.
The relative accuracy shall be < 20%.
Metallographic As per ASTM A923 Method A
Examination Magnification of 400:1 minimum.

As per ASTM G48 Method A and ISO 17781:

Test temperature shall be 25°C and the exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2.
All finished products, and as per referred ASTM standard.
Hydrostatic Test Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 28 of 39

Duplex Stainless Steel (22Cr or DSS) D/S No.:

DS-PVV-143-06
PVV-112 Piping
AX1, BX1, DX1, EX1, FX1, GX1
Class Rev. 2

Non-Destructive Testing As per SD-NOC-PVV-614

Positive Material
As per SD-NOC-PVV-143
Identification

Welding Not allowed

Defect repairs Repair by welding is not allowed

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 29 of 39

Duplex Stainless Steel (22Cr or DSS) D/S No.:

DS-PVV-143-07
PVV-112 Piping
AX1, BX1, DX1, EX1, FX1, GX1
Class Rev. 2
ASTM A928 S31803 cl.1 (S31803 cl.3 or S32205 cl.1 / cl.3 may be acceptable upon
Product Company approval at bid stage)

NACE MR0175 / ISO 15156

Manufacturing Process As per referred ASTM standard

Specific Requirements Plate shall comply with ASTM A240/A240M. Supplementary requirement: S1.

Electric arc or electric furnace steel making process + alloy refining by Argon Oxygen
Steelmaking Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) process.
Plate material supplier shall be indicated in the certificate.

Product Finish Pickling and passivation shall be performed according to ASTM A380/A380M.

Solution annealed followed by water quenching.

Heat treatment conditions shall be detailed in the certificate. (Soaking time and
Heat treatment temperature, quenching temperature at starting and finishing). Max. time lapse from
furnace to quench medium shall be less than 60sec.

As per SD-NOC-PVV-614
Chemistry PREN shall be ≥ 34

Maximum as stated in NACE MR0175 / ISO 15156-3 and SD-NOC-PVV-614:

 On macrograph: 285 HV10 max for the base metal and 320 HV10 max for the
Hardness Testing weldments.
 On component (test by portable tester): 28HRC.
Hardness survey as per SD-NOC-PVV-614.

Charpy V-Notch testing according to ASTM A923 method B or equivalent, at minus 46

Deg.C is required for thickness ≥ 6 mm.
The minimum absorbed energy for full size specimens shall be 54 J (average) and
Impact Testing 43 J (single).
For WT ≤ 20 mm, one set of three specimens shall be sampled. In case of WT > 20
mm, two sets of three specimens shall be taken.

The weld shall have a tensile strength not less than the specified minimum one of the
Tensile requirements plate.

As per ASTM E562 or image analysis ASTM E1245, and shall be within the
Ferrite Test range 35-60% for base metal and 35-65% for weld metal and heat affected zones.
The relative accuracy shall be < 20%.
As per ASTM A923, Method A
Metallographic
Magnification 400:1 minimum for base material area and 500:1 minimum for weld and
Examination heat affected zones.
As per ASTM G48 Method A and ISO 17781:
Test temperature shall be 22°C for weld area and 25°C for base material, and the
exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2 for products and welds in the solution annealed
condition.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 30 of 39

Duplex Stainless Steel (22Cr or DSS) D/S No.:

DS-PVV-143-07
PVV-112 Piping
AX1, BX1, DX1, EX1, FX1, GX1
Class Rev. 2

Hydrostatic Test All finished products and as per referred ASTM standard.

As per SD-NOC-PVV-614
Non-Destructive Testing 100% RT after heat treatment on entire weld seam length. RT shall be stated in the
material certificate.
Positive Material
As per SD-NOC-PVV-143
Identification

Welding Welding shall be in accordance with SD-NOC-PVV-614.

Weld repair on plate material is not allowed.

Defect repairs Weld repair on seam weld is allowed if heat treated afterwards. Welding procedure and
qualification shall be submitted to Company for approval.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 31 of 39

Super Duplex Stainless Steel (25Cr or SDSS) D/S No.:

DS-PVV-143-08
PVV-112 Piping
AO1, BO1, DO1, EO1, FO1, GO1
Class Rev. 2

Product ASTM A790 S32750 or S32760

NACE MR0175 / ISO 15156

Seamless pipes only.

Manufacturing Process Cold finishing (drawing) is permissible provided that subsequent heat treatment is
performed.

S1
Specific Requirements All the elements shall be reported on certificates (C, Mn, Si, S, P, Ni, Cr, Mo, Cu, N and
elements deliberately added if any).
Electric arc or electric furnace steel making process + alloy refining by Argon Oxygen
Steelmaking Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) process.
Raw material steel maker supplier shall be indicated in the material certificate.

Pickling and passivation is mandatory except in case of bright annealing and shall be
Product Finish performed according to ASTM A380/A380M.

Solution annealed followed by water quenching.

Heat treatment conditions shall be detailed in the certificate. (Soaking time and
Heat treatment temperature, quenching temperature at starting and finishing). Max. time lapse from
furnace to quench medium shall be less than 60sec.

As per SD-NOC-PVV-614
Chemistry PREN shall be ≥ 40

Hardness Testing The maximum hardness shall be 32HRC.

Procedure, method, location, orientation, acceptance criteria: ASTM A923 Method B or
equivalent. Frequency: same lot frequency as tensile tests specimens
The minimum absorbed energy shall be as per the referred standard and shall not be
Impact Testing less than 54 J (average) and 43 J (single). Test temperature shall be -46°C.
For WT ≤ 20 mm, one set of three specimens shall be sampled. In case of WT > 20
mm, two sets of three specimens shall be taken.
Tensile requirements As per referred ASTM standard

As per ASTM E562 or image analysis ASTM E1245, and shall be within the
Ferrite Test range 35-60%.
The relative accuracy shall be < 20%.

Metallographic As per ASTM A923, Method A

Examination Magnification of 400:1 minimum.

As per ASTM G48 Method A and ISO 17781:

Test temperature shall be 50°C and the exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2.

All finished product and as per referred ASTM standard.

Hydrostatic Test Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 32 of 39

Super Duplex Stainless Steel (25Cr or SDSS) D/S No.:

DS-PVV-143-08
PVV-112 Piping
AO1, BO1, DO1, EO1, FO1, GO1
Class Rev. 2

Non-Destructive Testing As per SD-NOC-PVV-614

Positive Material
As per SD-NOC-PVV-143
Identification

Welding Not allowed

Defect repairs Repair by welding is not allowed

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 33 of 39

Super Duplex Stainless Steel (25Cr or SDSS) D/S No.:

DS-PVV-143-09
PVV-112 Piping
AO1, BO1, DO1, EO1, FO1, GO1
Class Rev. 2
ASTM A928 S32750 or S32760 cl.1 (cl.3 may be acceptable upon Company approval
Product at bid stage)

NACE MR0175 / ISO 15156

Manufacturing Process As per referred ASTM standard

Specific Requirements Plate shall comply with ASTM A240/A240M. Supplementary requirement: S1.

Electric arc or electric furnace steel making process + alloy refining by Argon Oxygen
Steelmaking Decarburization (AOD) or Vacuum Oxygen Decarburization (VOD) process.
Plate material supplier shall be indicated in the certificate.

Product Finish Pickling and passivation shall be performed according to ASTM A380/A380M.

Solution annealed followed by water quenching.

Heat treatment conditions shall be detailed in the certificate. (Soaking time and
Heat treatment temperature, quenching temperature at starting and finishing). Max. time lapse from
furnace to quench medium shall be less than 60sec.
As per SD-NOC-PVV-614
Chemistry PREN shall be ≥ 40

Maximum as stated in NACE MR0175 / ISO 15156-3 and SD-NOC-PVV-614:

 On macrograph: 320 HV10 max for the base metal and 350 HV10 max for the
Hardness Testing weldments
 On component (test by portable tester): 32 HRC.
Hardness survey as per SD-NOC-PVV-614.
Procedure, method, location, orientation, acceptance criteria: ASTM A923 Method B or
equivalent. Frequency: Same lot frequency as tensile tests specimens
The minimum absorbed energy shall be as per the referred standard and shall not be
Impact Testing less than 54 J (average) and 43 J (single). Test temperature shall be -46°C.
For WT ≤ 20 mm, one set of three specimens shall be sampled. In case of WT > 20
mm, two sets of three specimens shall be taken.
The weld shall have a tensile strength not less than the specified minimum one of the
Tensile requirements plate.

As per ASTM E562 or image analysis ASTM E1245, and shall be within the
Ferrite Test range 35-60% for base metal and 35-65% for weld metal and heat affected zones.
The relative accuracy shall be < 20%.
As per ASTM A923, Method A
Metallographic
Magnification 400:1 minimum for base material area and 500:1 minimum for weld and
Examination heat affected zones.
As per ASTM G48 Method A and ISO 17781:
Test temperature shall be 35°C for weld area and 50°C for base material, and the
exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2 for products and welds in the solution annealed
condition.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 34 of 39

Super Duplex Stainless Steel (25Cr or SDSS) D/S No.:

DS-PVV-143-09
PVV-112 Piping
AO1, BO1, DO1, EO1, FO1, GO1
Class Rev. 2

Hydrostatic Test All finished products and as per referred ASTM standard.

As per SD-NOC-PVV-614.
Non-Destructive Testing 100% RT after heat treatment on entire weld seam length. RT shall be stated in the
material certificate.
Positive Material
As per SD-NOC-PVV-143
Identification

Welding Welding shall be in accordance with SD-NOC-PVV-614.

Weld repair on plate material is not allowed.
Defect repairs Weld repair on seam weld is allowed if heat treated afterwards. Welding procedure and
qualification shall be submitted to Company for approval.
Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 35 of 39

Super Austenitic Stainless Steel (6Mo or SASS) D/S No.:

DS-PVV-143-10
PVV-112 Piping
AM1, AN1, BM1, DM1, EM1, FM1, GM1
Class Rev. 2

Product ASTM A312 S31254

NACE MR0175 / ISO 15156

Seamless pipes only.

ASTM A312/A312M HCW and welded pipes are not permitted.
Manufacturing Process Cold finishing (drawing) is permissible provided that subsequent heat treatment is
performed.

Specific Requirements None

Steelmaking As per referred ASTM standard

Pickling and passivation is mandatory except in case of bright annealing and shall be
Product Finish performed according to ASTM A380/A380M.

Heat treatment Materials shall be delivered in solution annealed condition and water quenched.

Chemistry As per referred standard

Hardness Testing Maximum as stated in NACE MR0175 / ISO 15156 – 3 (35 HRC).

Impact Testing Not required

Tensile requirements As per referred ASTM standard

Ferrite Test Not required

Metallographic
Not required
Examination
As per ASTM G48 Method A:
Test temperature shall be 50°C and the exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2.

Hydrostatic Test All finished products and as per referred ASTM standard.

All finished product (Alternative to Hydrostatic test).

Non-Destructive Testing Nondestructive Electric Test as an alternative to hydrostatic test is allowed for NPS ≤ 2.
For diameters > NPS 2, Nondestructive Electric Test is subject to Company approval.

Positive Material
As per SD-NOC-PVV-143
Identification

Welding Not allowed

Defect repair Repair by welding is not allowed.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 36 of 39

Super Austenitic Stainless Steel (6Mo or SASS) D/S No.:

DS-PVV-143-11
PVV-112 Piping
AM1, AN1, BM1, DM1, EM1, FM1, GM1
Class Rev. 2

Product ASTM A358 S31254 cl.1 (cl.3 may be acceptable upon Company approval at bid stage)

NACE MR0175 / ISO 15156

Manufacturing Process Welded pipe as per referred ASTM standard

Specific Requirements None

Steelmaking Steel plate ASTM A240/A240M

Product Finish Pickling and passivation shall be performed according to ASTM A380/A380M.

Heat treatment Materials shall be delivered in solution annealed condition and water quenched.

Chemistry As per referred standard and for weld metal as per SD-NOC-PVV-615

Maximum as stated in NACE MR0175 / ISO 15156 – 3 (base metal 35 HRC) and SD-
Hardness Testing NOC-PVV-615 (weld metal and HAZ 300 HV10). Hardness survey as per SD-NOC-
PVV-615.

Impact Testing Not required

The weld shall have a tensile strength not less than the specified minimum one of the
Tensile requirements plate.

Ferrite Test Not required

Metallographic
Not required
Examination
As per ASTM G48 Method A:
Test temperature shall be 35°C for weld area and 50°C for base material, and the
exposure time 24 hours.
Corrosion Testing The acceptance criteria shall be:
 No pitting at 20 times magnification
 Weight loss < 1.0 g/m2 for products and welds in the solution annealed
condition.

Hydrostatic Test All finished products and as per referred ASTM standard.

As per SD-NOC-PVV-615
Non-Destructive Testing 100% RT after heat treatment on entire weld seam length. RT shall be stated in the
material certificate.
Positive Material
As per SD-NOC-PVV-143
Identification
Welding procedure and operators shall be qualified according to standard requirements
Welding and endorsed by a third party, and compliant to SD-NOC-PVV-615.
Use of GMAW (except for tacking) or FCAW is subject to Company approval.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 37 of 39

Super Austenitic Stainless Steel (6Mo or SASS) D/S No.:

DS-PVV-143-11
PVV-112 Piping
AM1, AN1, BM1, DM1, EM1, FM1, GM1
Class Rev. 2
Weld repair on plate material is not allowed.
Defect repair Weld repair on seam weld is allowed if heat treated afterwards. Welding procedure and
qualification shall be submitted to Company for approval.

Certification Material certificates shall be at least to EN 10204 3.1 type.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 38 of 39

Titanium D/S No.:

DS-PVV-143-12
PVV-112 Piping
AT1
Class Rev. 2

Product ASTM B861 Gr.2, ASTM B862 Gr.2

NACE Not required.

ASTM B861 – Seamless (4” and below)

Manufacturing Process ASTM B862 – Seam welded (6” and above)

Specific Requirements Flattening test requested for grade 2

Steelmaking As per referred ASTM standard.

Product Finish Pickled and passivated

Heat treatment Solution treated and water quenched

As per table 2 of ASTM B861.

Chemistry Hydrogen content shall be measured on the finished product according to ASTM E1447.

Surface hardness test (3 measurements) shall be performed on 5% of the items

Hardness Testing submitted for acceptance per size and per manufacturer location. No hard spot with
hardness >100 HRB is allowed. (23 HRC or 254 HV10)

Impact Testing Not required

Tensile requirements As per referred ASTM standard

Ferrite Test Not required

Metallographic
Not required
Examination

Corrosion Testing Not required

Hydrostatic Test All finished products and as per referred ASTM standard.

Penetrant Examination:
- Procedure and acceptance criteria as per ASTM E1417.
Non-Destructive Testing - 5% on items submitted for acceptance and per manufacturing location and per size /
length up to 1.5 times the NPS diameter.
For welded pipes, NDT as per SD-NOC-PVV-616.
Positive Material
As per SD-NOC-PVV-143
Identification
Welding of seam welds shall be in accordance with SD-NOC-PVV-616 and with qualified
procedures approved by Company.
Welding Mechanical property testing of the weld seam is to be undertaken following completion
of all heat treatment operations to which the final component is subjected.

Defect repairs Weld repair not permitted.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.
 LEVEL 3 – STANDARD SD-NOC-PVV-143

Metallic Pipes

Rev.: 03 Effective Date: 01/2020 Page: 39 of 39

Titanium D/S No.:

DS-PVV-143-12
PVV-112 Piping
AT1
Class Rev. 2

Material certificates shall be at least to EN 10204 3.1 type.

Certification Raw material manufacturer shall be detailed in the certificate.
Notes:
1) ASTM B861 pipes may be substituted by ASTM B862 pipes for NPS ≥ 4. Substitution of ASTM B861 by
ASTM B338 is subject to Company approval.

This document is proprietary to North Oil Company and contains confidential information which may not be reproduced, stored, disclosed or transmitted to any
third party, without the prior written consent of North Oil Company.
The information contained in this document does not substitute for the laws and regulations applicable in Qatar.
Printed versions of this document are uncontrolled, check CMS for latest version.