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1.1 This specification establishes the requirements for copper and copper alloy die forgings produced by the hot pressing method. The following copper and copper alloys are included:
|Copper or Copper Alloy|
|C36500||leaded Muntz metal|
|C37000||free-cutting Muntz metal|
|C48200||medium leaded naval brass|
|C48500||leaded naval brass|
|C62300||aluminum bronze, 9 %|
|C64210||aluminum-silicon bronze, 6.7 %|
|C65500||high-silicon bronze (A)|
|C67500||manganese bronze (A)|
|C67600||. . .|
|C77400||nickel silver, 45-10|
1.2 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.
Note 1—Nominal composition and relative forgeability ratings are given in Appendix X1. Copper-nickel alloys C70620 and C71520 are intended for welded applications with seawater exposure.
Note 2—Wrought product intended for hot forging is described in Specification B 124/B 124M
1.3 The following safety caveat pertains only to Section 10 of this specification. 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
E478 Test Methods for Chemical Analysis of Copper Alloys
Other StandardsJISH1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys (Japanese Industrial Standards)
Military StandardsNAVSEAT9074-AS-GIB-0 Requirements for Nondestructive Testing Method
UNSPSC Code 31133100(Copper forgings)