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Grade B422 C70350
USA UNS C70350
Corresponding Standard ASTM B422/B422M-2017
Standard Specification for Copper-Aluminum-Silicon-Cobat Alloy, Copper-Nickel-Silicon-Magnesium Alloy, Copper-Nickel-Silicon Alloy, Copper-Nickel-Aluminum-Magnesium Alloy, and Copper-Nickel-Tin Alloy Sheet and Strip
Classification Copper and Copper Alloys
B422 C70350 Chemical Element Composition Content (%)
Component Fe Si Mn Ni * Co Pb Zn Mg More
Minimum Value - 0.5 - 1 1 - - - Cu+Ag:余量
Maximum Value 0.2 1.2 0.2 2.5 2 0.05 1 0.04
B422 C70350 Mechanical Properties
condition Heat Treatment or Condition
Yield Point
σs
Mpa
Thin plate, strip Milling hardening - 1/2 HM (TM02) 675~780
Thin plate, strip Hard (Mill Hardened) - HM (TM04) 750~850
Thin plate, strip Mill hardened - XHM (TM06) 810~920
Thin plate, strip Extra Spring Hard (Mill Hardened) - XHMS (TM08) 880~1040
Thin plate, strip Mill hardened (TM10) 940~1100

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