ASTM B283/B283M-20

Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

ASTM International, 04/01/2020

Publisher: ASTM

File Format: PDF

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Published:01/04/2020

Pages:16

File Size:1 file , 290 KB

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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 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 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 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 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.

ASTM B283/B283M-20

Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

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