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ASTM B283/B283M-24
Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
1.1 This specification covers 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 |
| C36300 | copper-zinc-lead |
| C36500 | leaded Muntz metal |
| C37000 | free-cutting Muntz metal |
| C37700 | forging brass |
| C46400 | naval brass |
| C46500 | naval brass, arsenical |
| C46750 | tin brass |
| C48200 | medium leaded naval brass |
| C48500 | leaded naval brass |
| C48600 | naval brass |
| C48640 | DZR brass |
| C48645 | DZR tin 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) |
| C65680 | high-silicon bronze |
| C67500 | manganese bronze (A) |
| C67600 | . . . |
| C69300 | copper-zinc-silicon |
| C69410 | copper-zinc-silicon |
| Copper or Copper Alloy UNS No. | Name |
| C69850 | copper-zinc-silicon |
| C70620 | copper-nickel 90-10 |
| C71520 | copper-nickel 70-30 |
| C77400 | nickel silver, 45-10 |
| C87700 | silicon bronze |
| C87710 | silicon bronze |
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| Copper Alloy EN 1412 Nos. | Name |
| CW612N | forging brass |
| CW617N | forging brass |
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.
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 wi
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