ASTM B 122/B122M : 2020 : REDLINE
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Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
English
10-01-2020
1.1This specification establishes the requirements for copper-nickel-tin alloy, copper-nickel-zinc alloy (nickel silver), and copper-nickel alloy plate, sheet, strip, and rolled bar. The following alloys are covered:
| Nominal Composition, % | ||||||
| Copper Alloy | Previously Used | Chro- | ||||
| UNS No.2 | Designation | Copper | Nickel | Zinc | Tin | mium |
| C70600 | ... | 90 | 10 | ... | ... | ... |
| C70620 | ... | 90 | 10 | ... | ... | ... |
| C71000 | 6 | 80 | 20 | ... | ... | ... |
| C71500 | 5 | 70 | 30 | ... | ... | ... |
| C71520 | ... | 70 | 30 | ... | ... | ... |
| C72200 | ... | 85 | 15 | ... | ... | 0.5 |
| C72500 | ... | 89 | 9 | ... | 2 | ... |
| C73500 | 1 | 72 | 18 | 10 | ... | ... |
| C74000 | 9 | 70 | 10 | 20 | ... | ... |
| C74500 | 3 | 65 | 10 | 25 | ... | ... |
| C75200 | 2 | 65 | 18 | 17 | ... | ... |
| C76200 | 8 | 59 | 12 | 29 | ... | ... |
| C77000 | 4 | 55 | 18 | 27 | ... | ... |
Note 1:Plates of copper-nickel alloy Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, and C72200 for use as tube plates in surface condensers and heat exchangers are covered by Specification B171/B171M.
1.2Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. 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.
1.3This 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.
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