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This specification establishes the requirements for copper and copper die forgings produced by hot pressing method. The forgings included here are designated with the following Copper or Copper Alloy UNS Nos.: C11000 (copper), C14500 (copper-tellurium alloy), C14700 (copper-sulfur alloy), C36500 (leaded Muntz metal), C37000 (free-cutting Muntz metal), C37700 (forging brass), C46400 (naval brass), C48200 (medium leaded naval brass), C48500 (leaded naval brass), C61900 (aluminum bronze), C62300 (9% aluminum bronze), C63000 and C63200 (aluminum-nickel bronze), C64200 (aluminum-silicon bronze), C64210 (6.7% aluminum-silicon bronze), C65500 (high-silicon bronze), C67500 (manganese bronze), C67600, C69300 (copper-zinc-silicon alloy), C70620 (90% copper-10% nickel alloy), C71520 (70% copper-30% nickel alloy), and C77400 (45% nickel-10% silver alloy). The materials for manufacture shall be rods, billets, or blanks of such purity and soundness as to be suitable for processing by hot pressing. Products shall be tested to examine their conformance to mechanical (tensile and yield strengths, and elongation), dimensional, and chemical composition requirements.

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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 UNS No.Name
C11000 copper C14500 copper-tellurium C14700 copper-sulfur C27450 plumbing brass C35330 leaded brass C36500 leaded Muntz metal C37000 free-cutting Muntz metal C37700 forging brass C46400 naval brass C48200 medium leaded naval brass C48500 leaded naval brass C48600 naval brass C49250 copper-zinc-bismuth alloy C49255 copper-zinc-bismuth-nickel alloy C49260 copper-zinc-bismuth alloy C49300 copper-zinc-tin-bismuth alloy C49340 copper-zinc-tin-bismuth alloy C49350 copper-zinc-tin-bismuth alloy C49355 bismuth brass C61900 aluminum bronze C62300 aluminum bronze, 9 % C63000 aluminum-nickel bronze C63200 aluminum-nickel bronze C64200 aluminum-silicon bronze C64210 aluminum-silicon bronze, 6.7 % C65500 high-silicon bronze (A) C67500 manganese bronze (A) C67600 . . . C69300 copper-zinc-silicon C70620 copper-nickel 90-10 C71520 copper-nickel 70-30 C77400 nickel silver, 45-10 C87700 silicon bronze C87710 silicon bronze

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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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 B124/B124M.

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.