ASTM B168-19e1

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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Designation:B168 −19 Used in USDOE-NE Standards
Standard Specification for
Nickel-Chromium-Aluminum Alloys (UNS N06699), Nickel-
Chromium-Iron Alloys (UNS N06600, N06601, N06603,
N06690, N06693, N06025, N06045, and N06696), Nickel-
Chromium-Cobalt-Molybdenum Alloy (UNS N06617), Nickel-
Iron-Chromium-Tungsten Alloy (UNS N06674), and Nickel-
Chromium-Molybdenum-Copper Alloy (UNS N06235) Plate,
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Sheet, and Strip
This standard is issued under the fixed designation B168; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
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ε NOTE—An editorial correction was made to Table 3 in October 2022.
1. Scope* 1.4 This international standard was developed in accor-
2 dance with internationally recognized principles on standard-
1.1 This specification covers rolled nickel-chromium-
ization established in the Decision on Principles for the
aluminum alloys (UNS N06699), nickel-chromium-iron alloys
Development of International Standards, Guides and Recom-
(UNS N06600, N06601, N06603, N06690, N06693, N06025,
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mendations issued by the World Trade Organization Technical
N06045, and N06696), nickel-chromium-cobalt-molybdenum
Barriers to Trade (TBT) Committee.
alloy (UNS N06617), nickel-iron-chromium-tungsten alloy
(UNS N06674), and nickel-chromium-molybdenum-copper al-
2. Referenced Documents
loy (UNS N06235) plate, sheet, and strip.
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2.1 ASTM Standards:
1.2 The values stated in inch-pound units are to be regarded
B166 Specification for Nickel-Chromium-Aluminum Alloy,
as standard. The values given in parentheses are mathematical
Nickel-Chromium-IronAlloys,Nickel-Chromium-Cobalt-
conversions to SI units that are provided for information only
Molybdenum Alloy, Nickel-Iron-Chromium-Tungsten
and are not considered standard.
Alloy, and Nickel-Chromium-Molybdenum-CopperAlloy
1.3 The following precautionary caveat pertains only to the
Rod, Bar, and Wire
test methods portion, Section 13, of this specification: This
B880 Specification for General Requirements for Chemical
standard does not purport to address all of the safety concerns,
Check Analysis Limits for Nickel, Nickel Alloys and
if any, associated with its use. It is the responsibility of the user
Cobalt Alloys
of this standard to become familiar with all hazards including
E8/E8M Test Methods for Tension Testing of Metallic Ma-
those identified in the appropriate Safety Data Sheet (SDS) for
terials
this product/material as provided by the manufacturer, to
E10 Test Method for Brinell Hardness of Metallic Materials
establish appropriate safety, health, and environmental
E18 Test Methods for Rockwell Hardness of Metallic Ma-
practices, and determine the applicability of regulatory limi-
terials
tations prior to use.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
E38 Methods for Chemical Analysis of Nickel-Chromium
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This specification is under the jurisdiction of ASTM Committee B02 on
and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved May 1, 2019. Published May 2019. Originally
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approved in 1941. Last previous edition approved in 2018 as B168 – 18. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0168-19E01. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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For ASME Boiler and Pressure Code applications, see related Specification Standards volume information, refer to the standard’s Document Summary page on
SB-168 in Section II of that Code. the ASTM website.
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New designation established in accordance with Practice E527 and SAE J1086, The last approved version of this historical standard is referenced on
Practice for Numbering Metals and Alloys (UNS). www.astm.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
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B168−19
E112 Test Methods for Determining Average Grain Size 4.1.8 Certification—State if certification or a report of test
E140 Hardness Conversion Tables for Metals Relationship results is required (Section 16),
Among Brinell Hardness, Vickers Hardness, Rockwell 4.1.9 Sa
...