【国外标准】 Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)

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. NameC11000     copperC14500     copper-telluriumC14700     copper-sulfurC27450     plumbing brassC27451     plumbing brassC27453     copper zinc alloyC28500     copper-zinc brassC35330     leaded brassC36300     copper-zinc-leadC36500     leaded Muntz metalC37000     free-cutting Muntz metalC37700     forging brassC46400     naval brassC46500     naval brass, arsenicalC46750     tin brassC48200     medium leaded naval brassC48500     leaded naval brassC48600     naval brassC48640     DZR brassC48645     DZR tin brassC49250     copper-zinc-bismuth alloyC49255     copper-zinc-bismuth-nickel alloyC49260     copper-zinc-bismuth alloyC49265     copper-zinc-tin-bismuth, low leadedC49300     copper-zinc-tin-bismuth alloyC49340     copper-zinc-tin-bismuth alloyC49345     copper-zinc-tin-bismuth, low leadedC49350     copper-zinc-tin-bismuth alloyC49355     bismuth brassC61900     aluminum bronzeC62300     aluminum bronze, 9 %C63000     aluminum-nickel bronzeC63200     aluminum-nickel bronzeC64200     aluminum-silicon bronzeC64210     aluminum-silicon bronze, 6.7 %C65500     high-silicon bronze (A)C65680     high-silicon bronzeC67500     manganese bronze (A)C67600     . . .C69300     copper-zinc-siliconC69410     copper-zinc-siliconCopper or Copper Alloy UNS No. NameC69850     copper-zinc-siliconC70620     copper-nickel 90-10C71520     copper-nickel 70-30C77400     nickel silver, 45-10C87700     silicon bronzeC87710     silicon bronze   Copper Alloy EN 1412 Nos. NameCW612N     forging brassCW617N     forging brass1.2 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.