ASTM B196/B196M-18

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:B196/B196M −18
Standard Specification for
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Copper-Beryllium Alloy Rod and Bar
This standard is issued under the fixed designation B196/B196M; 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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1. Scope* 2.2 ASTM Standards:
B194 Specification for Copper-BerylliumAlloy Plate, Sheet,
1.1 This specification establishes the requirements for
Strip, and Rolled Bar
copper-beryllium alloy rod and bar in straight lengths. The
B249/B249M Specification for General Requirements for
following three alloys are included:
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
Copper Alloy Previously Used Nominal Beryllium
Forgings
UNS No. Designations Content, %
B601 Classification forTemper Designations for Copper and
C17000 Alloy 165 1.7
Copper Alloys—Wrought and Cast
C17200 Alloy 25 1.9
B846 Terminology for Copper and Copper Alloys
C17300 1.9
+0.4 lead E8/E8M Test Methods for Tension Testing of Metallic Ma-
terials
1.2 Unless otherwise required, Copper Alloy UNS No.
C17200 shall be the alloy furnished whenever Specification
3. General Requirements
B196/B196M is specified without any alloy designation.
3.1 The following sections of Specification B249/B249M
1.3 The values stated in either inch-pounds or SI units are to
constitute a part of this specification:
be regarded separately as the standard. Within the text, the SI
3.1.1 Terminology;
units are shown in brackets. The values stated in each system
3.1.2 Dimensions and Permissible Variations;
may not be exact equivalents; therefore, each system shall be
3.1.3 Workmanship, Finish, and Appearance;
used independently of the other. Combining values from the
3.1.4 Sampling;
two systems may result in nonconformance with the specifi-
3.1.5 Number of Tests and Retests;
cation.
3.1.6 Specimen Preparation;
1.4 This standard does not purport to address all of the
3.1.7 Test Methods;
safety concerns, if any, associated with its use. It is the
3.1.8 Significance of Numerical Limits;
responsibility of the user of this standard to establish appro-
3.1.9 Inspection;
priate safety, health, and environmental practices and deter-
3.1.10 Rejection and Rehearing;
mine the applicability of regulatory limitations prior to use.
3.1.11 Certification;
1.5 This international standard was developed in accor-
3.1.12 Mill Test Report;
dance with internationally recognized principles on standard-
3.1.13 Packaging and Package Marking; and
ization established in the Decision on Principles for the
3.1.14 Heat Identification
Development of International Standards, Guides and Recom-
3.2 In addition, when a section with a title identical to that
mendations issued by the World Trade Organization Technical
referencedin3.1aboveappearsinthisspecification,itcontains
Barriers to Trade (TBT) Committee.
additional requirements which supplement those appearing in
2. Referenced Documents
Specification B249/B249M.
2.1 The following documents in the current issue of the
4. Terminology
BookofStandardsformapartofthisspecificationtotheextent
referenced herein: 4.1 For terms related to copper and copper alloys, refer to
Terminology B846.
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ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
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Bar, Wire, Shapes and Forgings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2018. Published April 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approvedin1945toreplaceportionsofB120 – 41 T.Lastpreviouseditionapproved Standards volume information, refer to the standard’s Document Summary page on
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in 2013 as B196/B196M-07(2013) . DOI: 10.1520/B0196_B0196M-18. 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
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B196/B196M−18
4.2 Definitions of Terms Specific to This Standard: designation specified in the ordering information.
4.2.1 Heat—A heat shall be the result of castings poured
7.2 These composition limits do not preclude the presence
simultaneously from the same source of molten metal.
of other elements. Limits for unnamed elements may be
4.2.2 Lot—The lot shall be a heat or fraction ther
...