ASTM B122/B122M-11
- Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
- standard by ASTM International, 10/01/2011
- Publisher: ASTM
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1.1 This 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:
| Previously | ||||||
| Copper Alloy | Used | Nominal Composition, | ||||
| UNS No. | Designation | % | ||||
| Copper | Nickel | Zinc | Tin | Chro- mium | ||
| C70600 | ... | 90 | 10 | ... | ... | ... |
| C70620 | ... | 86 | 10 | ... | ... | ... |
| C71000 | 6 | 80 | 20 | ... | ... | ... |
| C71500 | 5 | 70 | 30 | ... | ... | ... |
| C71520 | ... | 65 | 31 | ... | ... | ... |
| C72200 | ... | 85 | 15 | ... | ... | 0.5 |
| C72500 | ... | 89 | 9 | ... | 2 | ... |
| C73500 | 1 | 72 | 18 | 10 | ... | ... |
| C74000 | 9 | 70 | 10 | 20 | ... | ... |
| C74500 | 3 | 65 | 10 | 24 | ... | ... |
| 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.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.2.1 When the product is ordered in inch-pound units, the inch-pound units are to be regarded as the standard except grain size is always specified in millimetres.
1.2.2 When the product is ordered in SI units, the SI units are to be regarded as the standard.
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