ASTM B577-19
(Test Method)Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
SIGNIFICANCE AND USE
5.1 These test methods determine whether copper products will be resistant to embrittlement when exposed to elevated temperatures in a reducing atmosphere.
5.1.1 It is assumed that all who use these test methods will be trained personnel capable of performing these procedures skillfully and safely. It is expected that work will be performed in a properly equipped facility.
SCOPE
1.1 These test methods describe procedures for determining the presence of cuprous oxide (Cu2O) in products made from deoxidized and oxygen-free copper.
1.2 The test methods appear in the following order:
Sections
Microscopical Examination without Thermal Treatment
9 – 11
Microscopical Examination after Thermal Treatment
13 – 15
Closed Bend Test after Thermal Treatment
17 – 19
Reverse Bend Test after Thermal Treatment
21 – 23
1.3 Units—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 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.
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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: B577 − 19
Standard Test Methods for
Detection of Cuprous Oxide (Hydrogen Embrittlement
1
Susceptibility) in Copper
This standard is issued under the fixed designation B577; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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.
1. Scope* 3. Terminology
1.1 These test methods describe procedures for determining 3.1 Definitions of Terms Specific to This Standard:
the presence of cuprous oxide (Cu O) in products made from 3.1.1 deoxidized copper, n—material produced substantially
2
deoxidized and oxygen-free copper. free of cuprous oxide, by the use of metallic or metalloidal
deoxidizers, as determined by metallographic examination at
1.2 The test methods appear in the following order:
75× under polarized light, or dark field illumination. Oxygen
Sections
may be present as residual deoxidation products.
Microscopical Examination without Thermal Treatment 9–11
3.1.2 oxygen-free copper, n—electrolytic copper produced
Microscopical Examination after Thermal Treatment 13–15
substantially free of cuprous oxide without the use of metallic
Closed Bend Test after Thermal Treatment 17–19
Reverse Bend Test after Thermal Treatment 21–23 or metalloidal deoxidizers as determined by metallographic
examination at 75× under polarized light, or dark field illumi-
1.3 Units—The values stated in inch-pound units are to be
nation. Oxygen may be present up to a maximum of 5 ppm in
regarded as standard. The values given in parentheses are
Copper UNS No. C10100 and 10 ppm in Copper UNS No.
mathematical conversions to SI units that are provided for
C10200.
information only and are not considered standard.
1.4 This standard does not purport to address all of the
4. Summary of Test Methods
safety concerns, if any, associated with its use. It is the
4.1 The presence of cuprous oxide is determined either by
responsibility of the user of this standard to establish appro-
microscopical examination under polarized light, or dark field
priate safety, health, and environmental practices and deter-
illumination or by methods that involve heating the test
mine the applicability of regulatory limitations prior to use.
specimens in a hydrogen-rich atmosphere and rapidly cooling
1.5 This international standard was developed in accor-
the specimens without undue exposure to air followed by a
dance with internationally recognized principles on standard-
microscopical examination or a suitable bend test.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5. Significance and Use
mendations issued by the World Trade Organization Technical
5.1 These test methods determine whether copper products
Barriers to Trade (TBT) Committee.
will be resistant to embrittlement when exposed to elevated
temperatures in a reducing atmosphere.
2. Referenced Documents
5.1.1 It is assumed that all who use these test methods will
2
2.1 ASTM Standards: be trained personnel capable of performing these procedures
E3Guide for Preparation of Metallographic Specimens skillfullyandsafely.Itisexpectedthatworkwillbeperformed
E883Guide for Reflected–Light Photomicrography in a properly equipped facility.
6. Apparatus
6.1 Test Method A—Metallographic equipment of the type
1
These test methods are under the jurisdiction of ASTM Committee B05 on
described in Guide E3 and Guide E883 suitably equipped with
Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.06
on Methods of Test.
polarized light or dark field illuminating capacities.
Current edition approved April 1, 2019. Published April 2019. Originally
6.2 Test Methods B, C, and D:
approved in 1973. Last previous edition approved in 2016 as B577–16. DOI:
10.1520/B0577–19.
6.2.1 Metallographic equipment of the type described in
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Guide E3 and Guide E883 provided with normal illumination.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.2 A furnace of sufficient capacity, capable of maintain-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ing the required reducing atmosphere while the specimens are
*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 1942
...
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: B577 − 16 B577 − 19
Standard Test Methods for
Detection of Cuprous Oxide (Hydrogen Embrittlement
1
Susceptibility) in Copper
This standard is issued under the fixed designation B577; 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.
1. Scope*
1.1 These test methods describe procedures for determining the presence of cuprous oxide (Cu O) in products made from
2
deoxidized and oxygen-free copper.
1.2 The test methods appear in the following order:
Sections
Microscopical Examination without Thermal Treatment 9 – 11
Microscopical Examination after Thermal Treatment 13 – 15
Closed Bend Test after Thermal Treatment 17 – 19
Reverse Bend Test after Thermal Treatment 21 – 23
1.3 Units—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 establish appropriate safety safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E3 Guide for Preparation of Metallographic Specimens
E883 Guide for Reflected–Light Photomicrography
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 deoxidized copper—copper, n—material produced substantially free of cuprous oxide, by the use of metallic or metalloidal
deoxidizers, as determined by metallographic examination at 75× under polarized light. light, or dark field illumination. Oxygen
may be present as residual deoxidation products.
3.1.2 oxygen-free copper—copper, n—electrolytic copper produced substantially free of cuprous oxide without the use of
metallic or metalloidal deoxidizers as determined by metallographic examination at 75× under polarized light. light, or dark field
illumination. Oxygen may be present up to a maximum of 5 ppm in Copper UNS No. C10100 and 10 ppm in Copper UNS No.
C10200.
1
These test methods are under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.06 on Methods
of Test.
Current edition approved April 1, 2016April 1, 2019. Published April 2016April 2019. Originally approved in 1973. Last previous edition approved in 20102016 as
B577 – 10.B577–16. DOI: 10.1520/B0577-16.10.1520/B0577–19.
2
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
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B577 − 19
4. Summary of Test Methods
4.1 The presence of cuprous oxide is determined either by microscopical examination under polarized light or light, or dark field
illumination or by methods that involve heating the test specimens in a hydrogen-rich atmosphere and rapidly cooling the
specimens without undue exposure to air followed by a microscopical examination or a suitable bend test.
5. Significance and Use
5.1 These test methods determine whether copper products will be resistant to embrittlement when exposed to elevated
temperatures in a reducing atmosphere.
5.1.1 It is assumed that all who use these test methods will be trained personnel capable of performing these procedures
skillfully and safely. It is expected that work will be performed in a properly equipped facility.
6. Apparatus
6.1 Test Method A—Metallographic equipment of the type described in Guide E3 and Guide E883 suit
...
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