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.

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

C27451

    plumbing brass

C27453

    copper zinc alloy

C28500

    copper-zinc brass

C35330

    leaded brass

C36500

    leaded Muntz metal

C37000

    free-cutting Muntz metal

C37700

    forging brass

C46400

    naval brass

C46750

    tin 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

C49265

    copper-zinc-tin-bismuth, low leaded

C49300

    copper-zinc-tin-bismuth alloy

C49340

    copper-zinc-tin-bismuth alloy

C49345

    copper-zinc-tin-bismuth, low leaded

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: Guidelines for design and development of forgings are included in Appendix X2.

Note 3: 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.

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.