ASTM B649-21

Standard Specification for Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloy and Cr-Ni-Fe-N <brk/>Low-Carbon Alloy Bar and Wire, Ni-Cr-Fe-Mo-N Alloy Wire, and Ni-Fe-Cr-Mo-N Alloy Bar

ABSTRACT
This specification covers Ni-Fe-Cr-Mo-Cu-N low-carbon alloys (UNS N08925, UNS N08031, UNS N08354, and UNS N08926), Cr-Ni-Fe-N low-carbon alloy (UNS R20033) bar and wire, and Ni-Cr-Fe Mo-N alloy (UNS N08936) wire. The material shall be supplied in the solution-treated or in cold drawn condition as required. Heat treatment shall be waived for forging quality material. The alloys shall conform to the chemical composition requirements prescribed for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, copper, nitrogen, and iron, as determined by chemical or product (check) analysis, and to the tensile requirements including tensile strength, yield strength, and elongation, as determined by tension test.
SCOPE
1.1 This specification covers nickel-iron-chromium-molybdenum-copper-nitrogen alloy and chromium-nickel-iron-nitrogen low-carbon alloy bar and wire, nickel-chromium-iron-molybdenum-nitrogen alloy wire, and nickel-iron-chromium-molybdenum-nitrogen alloy bar.  
1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904,2 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 A479/A479M and A484/A484M.  
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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Oct-2021
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Refers: ASTM A484/A484M-20a - Standard Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
• Effective Date: 05-May-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B649 −21
Standard Specification for
Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloy and Cr-Ni-Fe-N
Low-Carbon Alloy Bar and Wire, Ni-Cr-Fe-Mo-N Alloy Wire,
1
and Ni-Fe-Cr-Mo-N Alloy Bar
This standard is issued under the fixed designation B649; 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* 2. Referenced Documents
3
1.1 This specification covers nickel-iron-chromium-
2.1 ASTM Standards:
molybdenum-copper-nitrogen alloy and chromium-nickel- A479/A479M Specification for Stainless Steel Bars and
iron-nitrogenlow-carbonalloybarandwire,nickel-chromium-
Shapes for Use in Boilers and Other Pressure Vessels
iron-molybdenum-nitrogen alloy wire, and nickel-iron- A484/A484M Specification for General Requirements for
chromium-molybdenum-nitrogen alloy bar.
Stainless Steel Bars, Billets, and Forgings
B880 Specification for General Requirements for Chemical
1.2 ASTM International has adopted definitions whereby
2 Check Analysis Limits for Nickel, Nickel Alloys and
some grades, such as UNS N08904, previously in this
Cobalt Alloys
specification were recognized as stainless steels, because those
E8 Test Methods for Tension Testing of Metallic Materials
grades have iron as the largest element by mass percent. Such
[Metric] E0008_E0008M
grades are under the oversight of ASTM Committee A01 and
E29 Practice for Using Significant Digits in Test Data to
itssubcommittees.TheproductsofN08904previouslycovered
Determine Conformance with Specifications
in this specification are now covered by Specifications A479/
E55 Practice for Sampling Wrought Nonferrous Metals and
A479M and A484/A484M.
Alloys for Determination of Chemical Composition
1.3 The values stated in inch-pound units are to be regarded
E527 Practice for Numbering Metals and Alloys in the
as standard. The values given in parentheses are mathematical
Unified Numbering System (UNS)
conversions to SI units that are provided for information only
E1473 Test Methods for Chemical Analysis of Nickel, Co-
and are not considered standard.
balt and High-Temperature Alloys
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to become familiar
3.1 Definitions of Terms Specific to This Standard:
with all hazards including those identified in the appropriate
3.1.1 bars, n—hot-finished rounds, squares, octagons, and
Safety Data Sheet (SDS) for this product/material as provided
1
hexagons: ⁄4 in. (6.35 mm) and over in diameter or size;
by the manufacturer, to establish appropriate safety, health,
1
Hot-finished flats: ⁄4 in. to 10 in. (254 mm) inclusive in width,
and environmental practices, and determine the applicability
1
⁄8 in. (3.18 mm) and over in thickness; Cold-finished rounds,
of regulatory limitations prior to use.
1
squares, octagons, hexagons, and shapes: over ⁄2 in. (12.70
1.5 This international standard was developed in accor-
3
mm) in diameter or size; Cold-finished flats: ⁄8 in. (9.52 mm)
dance with internationally recognized principles on standard-
1
and over in width (see 3.1.1.1) and ⁄8 in. and over in thickness
ization established in the Decision on Principles for the
(see 3.1.1.2).
Development of International Standards, Guides and Recom-
3
3.1.1.1 Discussion—Widths less than ⁄8 in. (9.52 mm) and
mendations issued by the World Trade Organization Technical
3
thicknesses less than ⁄16 in. (4.76 mm) are described generally
Barriers to Trade (TBT) Committee.
as flat wire.
1 3
3.1.1.2 Discussion—Thickness ⁄8 in. to under ⁄16 in. (3.18
mm to under 4.76 mm) can be cold-rolled strip as well as bar.
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 Nov. 1, 2021. Published November 2021. Originally
3
approved in 1981. Last previous edition approved in 2017 as B649 – 17. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0649-21. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
New designation established in accordance with Practice E527 and SAE J1086, Standards volume information, refer to the standard’s Document Summary page on
Practice for Numbering Metals and Alloys (UNS). the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © AST
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B649 − 17 B649 − 21
Standard Specification for
Ni-Fe-Cr-Mo-Cu-N Low-Carbon Alloys (UNS N08925,Alloy
and Cr-Ni-Fe-N
UNS
N08031, UNS N08034, UNS N08354, and UNS N08926), and
Cr-Ni-Fe-N Low-Carbon Alloy (UNS R20033) Low-Carbon
Alloy Bar and Wire, and Ni-Cr-Fe-Mo-N Alloy (UNS N08936)
1
WireWire, and Ni-Fe-Cr-Mo-N Alloy Bar
This standard is issued under the fixed designation B649; 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*
1.1 This specification covers nickel-iron-chromium-molybdenum-copper-nitrogen alloys (UNS N08925, UNS N08031, UNS
N08034, UNS N08354, and UNS N08926), and alloy and chromium-nickel-iron-nitrogen low-carbon alloy (UNS R20033) bar and
wire, and nickel-chromium-iron-molybdenum-nitrogen alloy (UNS N08936) wire.wire, and nickel-iron-chromium-molybdenum-
nitrogen alloy bar.
2
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 A479/A479M and A484/A484M.
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 Safety Data Sheet
(SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental
practices, and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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 July 1, 2017Nov. 1, 2021. Published August 2017November 2021. Originally approved in 1981. Last previous edition approved in 20162017
as B649B649 – 17. – 06 (2016). DOI: 10.1520/B0649-17.DOI: 10.1520/B0649-21.
2
New designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).
*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
1

---------------------- Page: 1 ----------------------
B649 − 21
2. Referenced Documents
3
2.1 ASTM Standards:
A479/A479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
1
3.1.1 bars, n—hot-finished rounds, squares, octagons, and hexagons: ⁄4 in. (6.35 mm) and over in diameter or size.size;
1 1
Hot-finished flats: ⁄4 in. to 10 in. (254 mm) inclusive in width, ⁄8 in. (3.18 mm) and over in thickness.thickness; Cold-finished
1 3
rounds, squares, octagons, hexagons, and shapes: over ⁄2 in. (12.70 mm) in diameter
...