Engineering Standard
SAES-L-130 29 June 2005
Material for Low Temperature Service
Materials and Corrosion Control Standards Committee Members
Al-Anezi, Mohammed A., Chairman
Al-Rumaih, Abdullah M., Vice Chairman
Abdulhadi, Abdullatif I.
Al-Anizi, Salamah S.
Al-Gahtani, Moraya S.
Al-Ghasham, Tawfiq Y.
Al-Mugbel, Wajdi M.
Al-Nabulsi, Khalid M.
Al-Sannaa, Muhsen S.
Balhareth, Nasser M.
Bash, Fahad M.
Burgess, Brian W.
Choi, Ho J.
Cruz, Ivan C.
Dias, Olavo C.
Kermad, Abdelhak
Lobley, Graham R.
Mehdi, Mauyed S.
Moore, Mark A.
Niemeyer, Dennis C.
Palmer, Robert E.
Stark, Gregory D.
Tems, Robin D.
Saudi Aramco DeskTop Standards
Table of Contents
1 Scope............................................................. 2
2 Conflicts and Deviations................................. 2
3 References..................................................... 2
4 Materials......................................................... 3
5 Material Selection and
Testing Subcommittee............................ 5
Previous Issue: 28 January 2004 Next Planned Update: 1 July 2010
Revised paragraphs are indicated in the right margin Page 1 of 5
Primary contact: Abdullah M. Al-Rumaih on 873-4398
Document Responsibility: Materials and Corrosion Control SAES-L-130
Issue Date: 29 June 2005
Next Planned Update: 1 July 2010 Material for Low Temperature Service
1 Scope
This Standard covers toughness requirements for carbon and low alloy steels used for
pipe and piping components in service at a design minimum temperature within the
range of -18°C to -45°C. The requirements in this standard are more restrictive than
those in the ASME B31.3 code.
For definitions of design minimum temperatures, including auto-refrigeration service,
refer to SAES-L-310, or SAES-L-410 as applicable.
Commentary Note:
Piping materials for temperatures lower than -45°C are not covered in Saudi Aramco
engineering standards, but are selected in accordance with the ASME B31.3 code,
project design documents, process license guidelines, and recommendations from
Consulting Services Department.
2 Conflicts and Deviations
2.1 Any conflicts between this standard and other applicable Saudi Aramco
Engineering Standards (SAESs), Materials System Specifications (SAMSSs),
Standard Drawings (SASDs), or industry standards, codes, and forms shall be
resolved in writing by the Company or Buyer's Representative through the
Manager, Consulting Services Department of Saudi Aramco, Dhahran.
2.2 Direct all requests to deviate from this standard in writing to the Company or
Buyer's Representative, who shall follow internal company procedure SAEP-302
and forward such requests to the Manager, Consulting Services Department of
Saudi Aramco.
3 References
3.1 Saudi Aramco References
Saudi Aramco Engineering Procedure
SAEP-302 Instructions for Obtaining a Waiver of a
Mandatory Saudi Aramco Engineering
Requirement
Saudi Aramco Engineering Standards
SAES-L-133 Corrosion Protection Requirements for
Pipelines/Piping
SAES-L-310 Design of Plant Piping
SAES-L-410 Design of Pipelines
Page 2 of 5
Document Responsibility: Materials and Corrosion Control SAES-L-130
Issue Date: 29 June 2005
Next Planned Update: 1 July 2010 Material for Low Temperature Service
Saudi Aramco Materials System Specifications
02-SAMSS-001 Piping Components for Low Temperature Service
02-SAMSS-011 Forged Steel Weld Neck Flanges for Low and
Intermediate Temperature Service
3.2 Industry Codes and Standards
American Petroleum Institute
API SPEC 5L Specification for Line Pipe
American Society of Mechanical Engineers
ASME B31.3 Process Piping
American Society for Testing and Materials
ASTM A333 Seamless and Welded Steel Pipe for Low
Temperature Service
ASTM A350 Carbon and Low-Alloy Steel Forgings, Requiring
Notch Toughness Testing for Piping
Components
ASTM A420 Piping Fittings of Wrought Carbon Steel and
Alloy Steel for Low Temperature Service
ASTM A516 Pressure Vessel Plates, Carbon Steel, for
Moderate- and Lower-Temperature Service
ASTM A671 Electric Fusion Welded Steel Pipe for
Atmospheric and Lower Temperatures
4 Materials
4.1 Carbon steel piping materials shall be as specified in this section (Section 4)
when the design minimum temperature is within the range of -18°C to -45°C.
Exception:
The impact testing and special requirements of this standard are not applicable if:
a) The maximum allowable operating pressure of the pipe does not exceed 25% of
the maximum design pressure allowed by ASME B31.3 at ambient temperature,
and
b) The combined longitudinal stress due to pressure, dead weight, and
displacement strain does not exceed 41 MPa (6 ksi).
Page 3 of 5
Document Responsibility: Materials and Corrosion Control SAES-L-130
Issue Date: 29 June 2005
Next Planned Update: 1 July 2010 Material for Low Temperature Service
4.2 Except that ERW pipe shall not be used, pipe purchased in accordance with the
specifications listed below may be used if longitudinal Charpy V-notch impact
tests at -45°C demonstrate absorbed energies of 34/27 J (25/20 ft-lbs):
a) API SPEC 5L, PSL 2
b) ASTM A333 Grade 6
c) ASTM A671, Class 22, Grade CC60 or CC65, Supplementary
Requirement S-2 (Charpy V-Notch Test)
4.3 Carbon steel pipe, except for ERW, in accordance with API SPEC 5L PSL 2,
ASTM A333 Grade 6, or ASTM A671 (Class 22, Grade CC60 or CC65, S2)
may be used for low temperature service under the following conditions:
a) Design minimum temperature not lower than -29°C, or
b) When certified as having been tested at temperature of at least 20°C below
the design minimum temperature.
4.4 Nickel-containing steels in accordance with ASTM A333 or ASTM A671 may
be used as long as the service is not sour.
4.5 ANSI B16.11 socket-welding and threaded fittings, less than 2-inch NPS, in
accordance with ASTM A350 Grade LF2, may be used to a design minimum
temperature of -45°C.
4.6 Piping components that do not qualify for the exception in Para. 4.1 shall
comply with the requirements of 02-SAMSS-001. Acceptable materials are
ASTM A420 Grade WPL 3, ASTM A420 Grade WPL 6, and ASTM A350
Grade LF2. ASTM A516 plate may used for blind flanges, spectacle plates,
spacers and slip blinds.
Piping components include butt welding pipe fittings such as elbows, tees,
welding outlets, reducers, caps and lap joint stub ends ≤ NPS 24; as well as
blind flanges, spectacle plates, spacers and slip blinds. Pipe is not included as a
piping component, but is addressed in Para. 4.1 through 4.4 above.
4.7 All weld neck flanges, and any lap joint flanges larger than NPS 24, shall
comply with requirements specified in 02-SAMSS-011.
4.8 Pipe and piping components for wet, sour service shall comply with the
provisions in SAES-L-133 Section 9.
Page 4 of 5
Document Responsibility: Materials and Corrosion Control SAES-L-130
Issue Date: 29 June 2005
Next Planned Update: 1 July 2010 Material for Low Temperature Service
5 Material Selection and Testing Subcommittee
Graham Lobley Coordinator
Abdullah Al-Rumaih Member
Fahad Al-Bash Member
Olavo Dias Member
Muhsen Al-Sannaa Member
Mike Morrow Member
Mauyed Mehdi Member
Nasser Balhareth Member
Khalid Al-Nabulsi Member
Robin Tems Member
Abdelhak Kermad Member
Brian Burgess Member
Hojin Choi Member
Gregory Stark Member
Wajdi Al-Mugbel Member
Revision Summary
29 June 2005 Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued
with minor changes.
Page 5 of 5
