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: | | Nominal Composition, % | Copper Alloy | Previously Used | | | | | Chro- | UNS No. | 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. 1.2 Units—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. 1.3 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. |
B171/B171M-18 | Standard Specification for Copper-Alloy Plate and Sheet for Pressure Vessels, Condensers, and Heat Exchangers |
B248-22 | Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar |
B248M-22 | Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric) |
E478-08(2017) | Standard Test Methods for Chemical Analysis of Copper Alloys |
B846-19a | Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019). |
B601-18a | Standard Classification for Temper Designations for Copper and Copper Alloys´Wrought and Cast (Includes all amendments and changes 10/24/2018). |
E112-13(2021) | Standard Test Methods for Determining Average Grain Size |
E527-23 | Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) |
E255-23 | Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition |
E8/E8M-24 | Standard Test Methods for Tension Testing of Metallic Materials |
|