ASTM B823-20
(Specification)Standard Specification for Materials for Copper Base Powder Metallurgy (PM) Structural Parts
Standard Specification for Materials for Copper Base Powder Metallurgy (PM) Structural Parts
SCOPE
1.1 This specification covers a variety of copper base powder metallurgy (PM) structural materials, including those used in applications where high electrical conductivity is required. It includes a classification system, or material designation code. With the classification system, this specification includes chemical composition and minimum tensile yield strength.
Note 1: Paragraphs 6.1 and 8.1 govern material classification by the designation code. The classification system is explained in the Appendix.
Note 2: Materials classified as C-0000 are expected to be used in applications where high electrical conductivity is required.
1.2 Units—With the exception of density values, for which the gram per cubic centimetre (g/cm3) unit is the industry standard, the values stated in inch-pound units are to be regarded as the 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 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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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:B823 −20
Standard Specification for
Materials for Copper Base Powder Metallurgy (PM)
1
Structural Parts
This standard is issued under the fixed designation B823; 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.
1. Scope* B963 Test Methods for Oil Content, Oil-Impregnation
Efficiency, and Surface-Connected Porosity of Sintered
1.1 This specification covers a variety of copper base
Powder Metallurgy (PM) Products Using Archimedes’
powder metallurgy (PM) structural materials, including those
Principle
used in applications where high electrical conductivity is
E8Test Methods for Tension Testing of Metallic Materials
required. It includes a classification system, or material desig-
[Metric] E0008_E0008M
nation code. With the classification system, this specification
E29Practice for Using Significant Digits in Test Data to
includes chemical composition and minimum tensile yield
Determine Conformance with Specifications
strength.
3
2.2 MPIF Standard:
NOTE 1—Paragraphs 6.1 and 8.1 govern material classification by the
MPIF Standard35,Materials Standards for PM Structural
designation code. The classification system is explained in theAppendix.
Parts
NOTE 2—Materials classified as C-0000 are expected to be used in
applications where high electrical conductivity is required.
3. Terminology
1.2 Units—With the exception of density values, for which
3 3.1 Definitions—Definitions of powder metallurgy terms
the gram per cubic centimetre (g/cm ) unit is the industry
can be found in Terminology B243. Additional descriptive
standard, the values stated in inch-pound units are to be
information is available under “General Information on PM
regarded as the standard. The values given in parentheses are
Gray Pages” on the B09 page of the ASTM website.
mathematical conversions to SI units that are provided for
information only and are not considered standard.
4. Ordering Information
1.3 This international standard was developed in accor-
4.1 Materials for parts covered by this specification shall be
dance with internationally recognized principles on standard-
ordered by materials designation code.
ization established in the Decision on Principles for the
4.2 Ordersforpartsunderthisspecificationmayincludethe
Development of International Standards, Guides and Recom-
following information:
mendations issued by the World Trade Organization Technical
4.2.1 Certification, if required (see Section 13),
Barriers to Trade (TBT) Committee.
4.2.2 Dimensions (see Section 9),
2. Referenced Documents
4.2.3 Chemical composition (see 6.1, 10.1, and Table 1),
2
4.2.4 Test methods and mechanical properties (see 8.2 , 8.3,
2.1 ASTM Standards:
Table 2, Table X1.1, and Table X1.2),
B243Terminology of Powder Metallurgy
4.2.5 Density (see 7.1 and Table 3),
B925Practices for Production and Preparation of Powder
4.2.6 Porosity and oil content (see 7.3),
Metallurgy (PM) Test Specimens
4.2.7 Electrical properties (see 7.3 and Table X2.1), and
B962Test Methods for Density of Compacted or Sintered
4.2.8 Special packaging, if required.
Powder Metallurgy (PM) Products Using Archimedes’
Principle
5. Materials and Manufacture
1 5.1 Structural parts shall be made by compacting and
This specification is under the jurisdiction ofASTM Committee B09 on Metal
Powders and Metal Powder Products and is the direct responsibility of Subcom- sinteringmetalpowders.Partsmayalsobemadebyrepressing
mittee B09.05 on Structural Parts.
and resintering sintered parts, if necessary, to produce finished
Current edition approved April 1, 2020. Published May 2020. Originally
parts in conformance with the requirements of this specifica-
approved in 1992. Last previous edition approved in 2015 as B823–15. DOI:
tion.
10.1520/B0823-20.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from Metal Powder Industries Federation (MPIF), 105 College Rd.
the ASTM website. East, Princeton, NJ 08540, http://www.mpif.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
1
---------------------- Page: 1 ----------------------
B823−20
TABLE 1 Chemical Requirements TABLE 3 Density Requirements for High Electrical Conductivity
Appl
...
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: B823 − 15 B823 − 20
Standard Specification for
Materials for Copper Base Powder Metallurgy (PM)
1
Structural Parts
This standard is issued under the fixed designation B823; 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 a variety of copper base powder metallurgy (PM) structural materials, including those used in
applications where high electrical conductivity is required. It includes a classification system, or material designation code. With
the classification system, this specification includes chemical composition and minimum tensile yield strength.
NOTE 1—Paragraphs 6.1 and 8.1 govern material classification by the designation code. The classification system is explained in the Appendix.
NOTE 2—Materials classified as C-0000 are expected to be used in applications where high electrical conductivity is required.
3
1.2 Units—With the exception of density values, for which the gram per cubic centimetre (g/cm ) unit is the industry standard,
the values stated in inch-pound units are to be regarded as the standard. Values in SI units result from conversion. They may be
approximate and are for information only. The values given in parentheses are mathematical conversions to SI units that are
provided for information only and are not considered standard.
1.3 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:
B243 Terminology of Powder Metallurgy
B925 Practices for Production and Preparation of Powder Metallurgy (PM) Test Specimens
B962 Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle
B963 Test Methods for Oil Content, Oil-Impregnation Efficiency, and Surface-Connected Porosity of Sintered Powder
Metallurgy (PM) Products Using Archimedes’ Principle
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
3
2.2 MPIF Standard:
MPIF Standard 35, Materials Standards for PM Structural Parts
3. Terminology
3.1 Definitions—Definitions of powder metallurgy terms can be found in Terminology B243. Additional descriptive information
is available in the Related Materials section of Vol 02.05 of theunder “General Information on PM Gray Pages” on the B09 Annual
Book of ASTM Standards.page of the ASTM website.
4. Ordering Information
4.1 Materials for parts covered by this specification shall be ordered by materials designation code.
4.2 Orders for parts under this specification may include the following information:
4.2.1 Certification, if required (see Section 13),
1
This test method specification is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of
Subcommittee B09.05 on Structural Parts.
Current edition approved Oct. 1, 2015April 1, 2020. Published November 2015May 2020. Originally approved in 1992. Last previous edition approved in 20092015 as
B823 – 09.B823 – 15. DOI: 10.1520/B0823-15.10.1520/B0823-20.
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.
3
Available from Metal Powder Industries Federation (MPIF), 105 College Rd. East, Princeton, NJ 08540, http://www.mpif.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
1
---------------------- Page: 1 ----------------------
B823 − 20
4.2.2 Dimensions (see Section 9),
4.2.3 Chemical composition (see 6.1, 10.1, and Table 1),
4.2.4 Test methods and mechanical properties (see 8.2 , 8.3, Table 2, Table X1.1, and Table X1.2),
4.2.5 Density (see 7.1 and Table 3),
4.2.6 Porosity and oil content (see 7.3),
4.2.7 Electrical properties (see 7.3 and Table X2.1), and
4.2.8
...
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