ASTM B283 / B283M - 20
Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
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Abstract
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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
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 |
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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 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Military Standards
MIL-STD-792Other Standards
ASME Boiler and Pressure Vessel Code Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org. EN 1412 ISO 7602 Determination of Tellurium Content (High Content)Flame Atomic Absorption Spectrometric Method Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.ASTM Standards
B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
E478 Test Methods for Chemical Analysis of Copper Alloys
ICS Code
ICS Number Code 77.150.30 (Copper products)
UNSPSC Code
UNSPSC Code 31133100(Copper forgings)
Referencing This Standard
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DOI: 10.1520/B0283_B0283M-20
Citation Format
ASTM B283 / B283M-20, Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed), ASTM International, West Conshohocken, PA, 2020, www.astm.org
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