DIN, EN, ASTM
ASTM B705
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Designation: B705 05 (Reapproved 2014)
Standard Specification for
Nickel-Alloy (UNS N06625, N06219 and N08825) Welded
Pipe1
This standard is issued under the fixed designation B705; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon () indicates an editorial change since the last revision or reapproval.
2.2 ASME Boiler and Pressure Vessel Code:4
Section IX Welding and Brazing Qualifications
1. Scope
1.1 This specification covers welded UNS N06625,2 UNS
N062192 and UNS N088252 pipe in the annealed condition
(temper) for general corrosion applications.
3. General Requirement
3.1 Material furnished in accordance with this specification
shall conform to the applicable requirements of the current
edition of Specification B775 unless otherwise provided
herein.
1.2 This specification covers pipe sizes in schedules shown
in the Permissible Variations in Outside Diameter and Wall
Thickness for Welded Pipe table of Specification B775.
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
and are not considered standard.
1.4 The following precautionary caveat pertains only to the
test methods portion, Section 8, of this specification:This
standard does not purport to address all of the safety concerns,
if any, associated with its use. It is the responsibility of the user
of this standard to become familiar with all hazards including
those identified in the appropriate Material Safety Data Sheet
(MSDS) for this product/material as provided by the
manufacturer, to establish appropriate safety and health
practices, and determine the applicability of regulatory limitations prior to use.
4. Definition of Terms
4.1 Class 1Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.1.
4.2 Class 2Welded, cold-worked, annealed, and nondestructively tested in accordance with 9.2.
4.3 Grade 1Annealed condition, relevant for UNS
N06625.
4.4 Grade 2Solution annealed condition, relevant for
UNS N06625.
5. Ordering Information
5.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for the safe and satisfactory
performance of material ordered under this specification.
Examples of such requirements include, but are not limited to,
the following:
5.1.1 Alloy name or UNS number,
5.1.2 ASTM designation,
5.1.3 Dimensions:
5.1.3.1 Pipe size,
5.1.3.2 Length (specific or random),
5.1.4 Class (see Section 3),
5.1.5 Grade if UNS N06625 is specified. If neither grade of
N06625 is specified, grade 1 will be supplied.
5.1.6 Quantity (feet or number of pieces),
5.1.7 CertificationState if certification is required,
5.1.8 Samples for Product (Check) AnalysisState whether
samples for product (check) analysis should be furnished (7.2),
and
2. Referenced Documents
2.1 ASTM Standards:3
B751 Specification for General Requirements for Nickel and
Nickel Alloy Welded Tube
B775 Specification for General Requirements for Nickel and
Nickel Alloy Welded Pipe
B880 Specification for General Requirements for Chemical
Check Analysis Limits for Nickel, Nickel Alloys and
Cobalt Alloys
1
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved Oct. 1, 2014. Published October 2014. Originally
approved in 1982. Last previous edition approved in 2009 as B705 05 (2009).
DOI: 10.1520/B0705-05R14.
2
New designation established in accordance with Practice E527 and SAE
J 1086, Practice for Numbering Metals and Alloys (UNS).
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standards Document Summary page on
the ASTM website.
4
Available from American Society of Mechanical Engineers (ASME), ASME
International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*A Summary of Changes section appears at the end of this standard
Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B705 05 (2014)
TABLE 2 Mechanical Property Requirements
5.1.9 Purchaser InspectionIf purchaser wishes to witness
tests or inspection of material at place of manufacture, the
purchase order must so state indicating which tests or inspections are to be witnesses.
Alloy
6. Material and Manufacture
UNS N06625
UNS N06625
6.1 Pipe shall be made from flat-rolled alloy by an automatic welding process with no addition of filler metal. Subsequent to welding and prior to final annealing, the material shall
be cold-worked in either the weld metal only or both weld and
base metal.
Grade
Yield
Strength
Tensile
Strength
0.2 % Offset,
min, psi (MPa)
min, psi
(MPa)
Elongation in 2
in. or 50
mm, min,
%
120 000 (827) 60 000 (414)
100 00 (690) 40 000 (276)
30
30
96 000 (660) 39 000 (270)
85 000 (586) 35 000 (240)
30
30
1 (annealed)
2 (solution
annealed)A
UNS N06219
UNS N08825
A
Solution annealed at 2000F (1093C) minimum, with or without subsequent
stabilization anneal at 1800F (982C) minimum to increase resistance to
sensitization.
6.2 Pipe shall be furnished with oxide removed. When
bright annealing is used, descaling is not necessary.
7. Chemical Composition
material and heat as pipe, which is attached to the end of the
cylinder and welded as a prolongation of the pipe longitudinal
seam. Except as provided in 8.3.2, one shall be subjected to a
face guided bend and a second to a root guided bend test. One
specimen shall be bent with the inside surface of the pipe
against the plunger and the other with the outside surface of the
pipe against the plunger. Guided bend test specimens shall be
prepared and tested in accordance with Section IX, Part QW
160 of the ASME Boiler and Pressure Vessel Code and shall be
one of the types shown in QW462.2 and QW462.3 of that code.
One bend test (two bend specimens) per lot shall be examined.
8.3.2 For specified wall thicknesses 38 in. (9.5 mm) and
over, but less than 34 in. (19 mm) side bend tests may be made
instead of the face and root bend tests. For specified wall
thicknesses 34 in. (19) and over, both specimens shall be
subjected to the side bend tests. Side bend specimens shall be
bent so that one of the side surfaces becomes the convex
surface of the bend specimen.
8.3.3 The bend test shall be acceptable if no cracks or other
defects exceeding 18 in. (3 mm) in any direction be present in
the weld metal or between the weld and the pipe or plate metal
after bending. Cracks which originate along the edges of the
specimen during testing, and are less than 14 in. (6.5 mm)
measured in any direction shall not be considered.
7.1 The material shall conform to the composition limits
specified in Table 1. One test per lot shall be performed.
7.2 If a product (check) analysis is performed by the
purchaser, the material shall conform to the product (check)
analysis variations per Specification B880.
8. Mechanical Properties and Other Requirements
8.1 Mechanical PropertiesThe material shall conform to
the mechanical properties specified in Table 2. One pipe per lot
shall be examined.
8.2 Flattening TestA section of pipe not less than 4 in.
(102 mm) in length shall be capable of withstanding, without
cracking, flattening under a load applied gradually at room
temperature until the distance between the platens is five times
the wall thickness. The weld shall be positioned 90 from the
direction of the applied flattening force. One pipe per lot shall
be examined.
8.2.1 Superficial ruptures resulting from surface imperfections shall not be a cause for rejection.
8.3 Transverse Guided Bend Test:
8.3.1 At the option of the pipe manufacturer, the transverse
guided bend test may be substituted in lieu of the flattening
test. Two bend specimens shall be taken transversely from pipe
or the test specimens may be taken from a test plate of the same
9. Nondestructive Testing
9.1 Class 1Each piece in each lot shall be subjected to one
of the following four tests: hydrostatic, pneumatic (air
underwater), eddy current, or ultrasonic.
TABLE 1 Chemical Requirements
Composition Limits, %
Ni
Cr
Fe
Mo
Cb + Ta
C
Mn
Si
P
S
Al
Ti
Co (if determined)
Cu
A
UNS
N06625
UNS
N06219
UNS
N08825
58.0 minA
20.023.0
5.0 max
8.010.0
3.154.15
0.10 max
0.50 max
0.5 max
0.015 max
0.015 max
0.4 max
0.40 max
1.0 max
...
Bal
18.0-22.0
2.0-4.0
7.0-9.0
...
0.05 max
0.50 max
0.70-1.10
0.020 max
0.010 max
0.50 max
0.50 max
1.0 max
0.50 max
38.046.0
19.523.5
22.0 minA
2.5 3.5
...
0.05 max
1.0 max
0.5 max
...
0.03 max
0.2 max
0.61.2
...
1.53.0
9.2 Class 2Each piece in each lot shall be subjected to a
leak test and an electric test as follows:
9.2.1 Leak TestHydrostatic or pneumatic (air underwater).
9.2.2 Electric TestEddy current or ultrasonic.
9.3 The manufacturer shall have the option to test to Class
1 or 2 and select the nondestructive test methods, if not
specified by the purchaser.
10. Product Marking
10.1 In addition to the requirements of Specification B751,
UNS N06625 tubes shall be marked with grade information.
11. Keywords
Element may be determined arithmetically by difference.
11.1 N06219; N06625; N08825; welded pipe
2
B705 05 (2014)
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