ASTM B425-19
(Specification)Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and Bar
Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and Bar
ABSTRACT
This specification covers nickel-iron-chromiummolybdenum-copper alloy (UNS N08825 and UNS N08221) in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles. The material shall conform to the composition limits specified. The material shall conform to the mechanical properties specified. Chemical analysis, tension test, and rounding procedure shall be made in accordance to the specified requirements.
SCOPE
1.1 This specification2 covers nickel-iron-chromium-molybdenum-copper alloys (UNS N06845, UNS N08221, UNS N08825, and UNS N08827)3 in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles.
1.2 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.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standard does not purport to address all of the safety problems, 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.
1.4 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.
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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:B425 −19
Standard Specification for
Nickel-Iron-Chromium-Molybdenum-Copper Alloys Rod and
1
Bar
This standard is issued under the fixed designation B425; 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* N08825, UNS N08221, and UNS N06845) Plate, Sheet,
2 and Strip
1.1 This specification covers nickel-iron-chromium-
B880 Specification for General Requirements for Chemical
molybdenum-copper alloys (UNS N06845, UNS N08221,
3 Check Analysis Limits for Nickel, Nickel Alloys and
UNS N08825, and UNS N08827) in the form of hot-finished
Cobalt Alloys
and cold-drawn rounds, squares, hexagons, and rectangles.
E8 Test Methods for Tension Testing of Metallic Materials
1.2 The values stated in inch-pound units are to be regarded
[Metric] E0008_E0008M
as standard. The values given in parentheses are mathematical
E29 Practice for Using Significant Digits in Test Data to
conversions to SI units that are provided for information only
Determine Conformance with Specifications
and are not considered standard.
E1473 Test Methods for Chemical Analysis of Nickel, Co-
1.3 The following precautionary caveat pertains only to the
balt and High-Temperature Alloys
test methods portion, Section 12, of this specification: This
standard does not purport to address all of the safety problems, 3. Terminology
if any, associated with its use. It is the responsibility of the user
3.1 Definitions of Terms Specific to This Standard:
of this standard to become familiar with all hazards including
3.1.1 bar, n—material of rectangular (flats), hexagonal, or
those identified in the appropriate Safety Data Sheet (SDS) for
square solid section up to and including 10 in. (254 mm) in
this product/material as provided by the manufacturer, to
1
width and ⁄8 in. (3.2 mm) and over in thickness in straight
establish appropriate safety, health, and environmental
lengths.
practices, and determine the applicability of regulatory limi-
3.1.1.1 Discussion—Hot-worked rectangular bar in widths
tations prior to use.
10in.(254mm)andundermaybefurnishedashot-rolledplate
1.4 This international standard was developed in accor-
with sheared or cut edges in accordance with Specification
dance with internationally recognized principles on standard-
B424, provided the mechanical property requirements of this
ization established in the Decision on Principles for the
specification are met.
Development of International Standards, Guides and Recom-
3.1.2 rod, n—material of round solid section furnished in
mendations issued by the World Trade Organization Technical
straight lengths.
Barriers to Trade (TBT) Committee.
4. Ordering Information
2. Referenced Documents
4
4.1 It is the responsibility of the purchaser to specify all
2.1 ASTM Standards:
requirements that are necessary for the safe and satisfactory
B424 Specification for Ni-Fe-Cr-Mo-Cu Alloy (UNS
performance of material ordered under this specification.
Examples of such requirements include, but are not limited to,
1
This specification is under the jurisdiction of ASTM Committee B02 on
the following:
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.1 ASTM designation and date of issue,
B02.07 on Refined Nickel and Cobalt and Their Alloys.
4.1.2 UNS number,
Current edition approved Nov. 1, 2019. Published November 2019. Originally
approved in 1964. Last previous edition approved in 2017 as B425 – 11 (2017).
4.1.3 Section—Rod (round) or bar (square, hexagonal, or
DOI: 10.1520/B0425-19.
rectangular),
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
4.1.4 Dimensions, including length,
cation SB-425 in Section II of that code.
3
4.1.5 Condition (see Appendix X1),
New designation established in accordance with Practice E527 and SAE
J 1086, Practice for Numbering Metals and Alloys (UNS).
4.1.6 Finish (see Appendix X1),
4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.7 Quantity—Feet (or metres) or number of pieces,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1.8 Certification—State if certification is required (Sec-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tion 15),
*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
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...
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: B425 − 11 (Reapproved 2017) B425 − 19
Standard Specification for
Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825, UNS N08221, and
Nickel-Iron-Chromium-Molybdenum-Copper Alloys
1
UNS N06845) Rod and Bar
This standard is issued under the fixed designation B425; 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 Scope*
2
1.1 This specification covers nickel-iron-chromium-molybdenum-copper alloyalloys (UNS N08825,N06845, UNS N08221,
3
UNS N08825, and UNS N06845)N08827) in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles.
1.2 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.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standard
does not purport to address all of the safety problems, 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.
1.4 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.
2. Referenced Documents
4
2.1 ASTM Standards:
B424 Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloys Plate, Sheet, and Strip
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
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 bar, n—material of rectangular (flats), hexagonal, or square solid section up to and including 10 in. (254 mm) in width
1
and ⁄8 in. (3.2 mm) and over in thickness in straight lengths.
3.1.1.1 Discussion—
Hot-worked rectangular bar in widths 10 in. (254 mm) and under may be furnished as hot-rolled plate with sheared or cut edges
in accordance with Specification B424, provided the mechanical property requirements of this specification are met.
3.1.2 rod, n—material of round solid section furnished in straight lengths.
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, 2017Nov. 1, 2019. Published November 2017November 2019. Originally approved in 1964. Last previous edition approved in 20112017
as B425 – 11.B425 – 11 (2017). DOI: 10.1520/B0425-11R17.10.1520/B0425-19.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-425 in Section II of that code.
3
New designation established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
4
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 standard’s Document Summary page on the ASTM website.
*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 ----------------------
B425 − 19
4. Ordering Information
4.1 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:
4.1.1 ASTM designation and date of issue,
4.1.2 U
...
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