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ASTM International , 10/01/2020
Publisher: ASTM
File Format: PDF
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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
C71000
6
80
20
C71500
5
70
30
C71520
C72200
85
15
0.5
C72500
89
9
2
C73500
1
72
18
C74000
C74500
3
65
25
C75200
17
C76200
8
59
12
29
C77000
4
55
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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