ASTM B124/B124M-19a

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: B124/B124M − 19 B124/B124M − 19a
Standard Specification for
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Copper and Copper Alloy Forging Rod, Bar, and Shapes
This standard is issued under the fixed designation B124/B124M; 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 This specification establishes the requirements for copper and copper alloy rod, bar, and shapes intended for hot forging.
The following coppers and copper alloys are involved:
Copper Alloy Copper Alloy
Copper UNS Nos.
UNS Nos. EN 1412 Nos.
C11000 C27450 C49355 CW612N
C11000 C27450 C49350 CW612N
C14500 C27451 C49360 CW617N
C14500 C27451 C49355 CW617N
C14700 C27453 C61900
C14700 C27453 C49360
C28500 C61900
C28500 C62300
C35330 C62300
C35330 C63000
C36300 C63000
C36500 C63200
C37000 C64200
C37700 C64210
C46400 C65500
C46500 C65680
C46750 C67500
C48200 C67600
C48500 C69150
C48600 C69240
C48640 C69300
C49250 C69410
C49255 C69850
C49260 C70620
C49265 C71520
C49300 C77400
C49340 C87700
C49345 C87710
C49350
NOTE 1—Additional information about forging practice and forgings produced from these alloys is given in Appendix X1 and in Specification
B283/B283M.
1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated
in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
1.3 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 requirements prior to use.
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This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,
Wire, Shapes and Forgings.
Current edition approved April 1, 2019Oct. 1, 2019. Published April 2019November 2019. Originally approved in 1939. Last previous edition approved in 20182019 as
B124/B124M–18a.–19. DOI: 10.1520/B0124_B0124M–19.10.1520/B0124_B0124M–19A.
*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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B124/B124M − 19a
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
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2.1 ASTM Standards:
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B283/B283M Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
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E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
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E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
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E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
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E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
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E121 Test Methods for Chemical Analysis of Copper-Tellurium Alloys (Withdrawn 2010)
E478 Test Methods for Chemical Analysis of Copper Alloys
2.2 Other Standards:
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ASME Boiler and Pressure Vessel Code
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EN 1412 Copper and Copper Alloys—European Numbering System
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EN 12165 Copper and Copper Alloys—Wrought and Unwrought Forging Stock
ISO 3110, Part 2 (TC 26 Ref. No. N 670 E ⁄F) Determination of Aluminum Content: Flame Atomic Absorption Spectrometric
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Method
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JIS H 1068:2005 Methods for Determination of Bismuth in Copper and Copper Alloys (Japanese Industrial Standards)
3. General Requirements
3.1 The following sections of Specification B249/B249M, as applicable, constitute a part of this specification:
3.1.1 Terminology,Terminology;
3.1.2 Material and Manufacture,Manufacture;
3.1.3 Workmanship, Finish, and Appeara
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