ASTM B677-05(2010)
(Specification)Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube
ABSTRACT
This specification covers UNS N08925, N08354, and N08926 alloy seamless, cold-worked or hot-finished pipes and tubes for use in general corrosive service. The materials should be supplied in solution-treated condition, heat treated and quenched in water or rapidly cooled by other means. The material chemical composition, mechanical properties, and required response to hydrostatic and nondestructive tests should conform to the values contained in this specification and related ASTM standards.
SCOPE
1.1 This specification covers UNS N08925, UNS N08354, and UNS N08926* seamless, cold-worked or hot-finished pipe and tube intended for general corrosive service.
1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specification, were recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are now covered by Specifications A269 and A312/A312M.
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 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.
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Designation: B677 – 05 (Reapproved 2010)
Standard Specification for
UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe
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and Tube
This standard is issued under the fixed designation B677; 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.
1. Scope B829 Specification for General Requirements for Nickel
and Nickel Alloys Seamless Pipe and Tube
1.1 This specification covers UNS N08925, UNS N08354,
E527 Practice for Numbering Metals and Alloys in the
and UNS N08926* seamless, cold-worked or hot-finished pipe
Unified Numbering System (UNS)
and tube intended for general corrosive service.
1.2 ASTM International has adopted definitions whereby
3. Terminology
some grades, such as UNS N08904 previously in this specifi-
3.1 average diameter, n—the average of the maximum and
cation, were recognized as stainless steels, because those
minimum outside diameters as determined at any one cross
grades have iron as the largest element by mass percent. Such
section of the tube or pipe.
grades are under the oversight of ASTM Committee A01 and
3.2 pipe, n—seamless tube conforming to the particular
itssubcommittees.TheproductsofN08904previouslycovered
dimensions commercially known as standard pipe sizes.
in this specification are now covered by Specifications A269
3.3 tube, n—a hollow product of round or any other cross
and A312/A312M.
section having a continuous periphery.
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. General Requirements
conversions to SI units that are provided for information only
4.1 Material furnished under this specification shall con-
and are not considered standard.
form to the requirements of Specification B829 unless other-
1.4 This standard does not purport to address all of the
wise provided herein. In the case of conflict, the requirements
safety concerns, if any, associated with its use. It is the
of this specification shall take precedence.
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
5. Ordering Information
Material Safety Data Sheet (MSDS) for this product/material
5.1 It is the responsibility of the purchaser to specify all
as provided by the manufacturer, to establish appropriate
requirements that are necessary for material ordered under this
safety and health practices, and determine the applicability of
specification. Examples of such requirements include, but are
regulatory limitations prior to use.
not limited to, the following:
5.1.1 Alloy name or UNS number.
2. Referenced Documents
2 5.1.2 ASTM designation and year of issue.
2.1 ASTM Standards:
5.1.3 Finish.
A269 Specification for Seamless and Welded Austenitic
5.1.4 Dimensions:
Stainless Steel Tubing for General Service
5.1.4.1 Tube—Outside diameter and the average or mini-
A312/A312M Specification for Seamless, Welded, and
mum wall thickness.
Heavily Cold Worked Austenitic Stainless Steel Pipes
5.1.4.2 Pipe—Standard pipe size and schedule.
5.1.4.3 Length, (cut to length or random).
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This specification is under the jurisdiction of ASTM Committee B02 on
5.1.5 Quantity (feet or number of pieces).
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
5.1.6 Nondestructive Testing (see 8.2):
B02.07 on Refined Nickel and Cobalt and Their Alloys.
5.1.6.1 Pressure Requirements—Test pressure if other than
Current edition approved Oct. 1, 2010. Published October 2010. Originally
approved in 1980. Last previous edition approved in 2005 as B677 – 05. DOI: required by 8.2.1.
10.1520/B0677-05R10.
5.1.6.2 Specify if an electric test is to be performed.
* New designation established in accordance withASTM E527 and SAE J1086,
5.1.7 Ends—Plain ends cut and deburred will be furnished.
Recommended Practice for Numbering Metals and Alloys (UNS).
2
If threaded ends or ends beveled for welding are desired, give
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
details.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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B677 – 05 (2010)
TABLE 1 Chemical Requirements
Element UNS N08925 UNS N08926 UNS N08354
Carbon, max 0.020 0.020 0.030
Manganese, max 1.0 2.00 1.00
Phosphorus, max 0.045 0.03 0.030
Sulfur, max 0.030 0.01 0.010
Silicon, max 0.50 0.5 1.00
Nickel 24.0 to 26.0 24
...
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