B422 C70250 C70250 - ASTM B422/B422M-2017 - H2ABC

中文版

Grade	B422 C70250
USA UNS	C70250
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 C70250 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Ni ^*	Pb	Zn	Mg	More
Minimum Value	-	0.25	-	2.2	-	-	0.05	Cu+Ag:余量
Maximum Value	0.2	1.2	0.1	4.2	0.05	1	0.3	Cu+Ag:余量

B422 C70250 Mechanical Properties

condition	Heat Treatment or Condition	Yield Point σ_s Mpa
Thin plate, strip	Milling hardening - AM (TM00)	450~620
Thin plate, strip	Milling hardening - 1/2 HM (TM02)	570~760
Thin plate, strip	3/4 Hard (Milled Hardening) - 3/4 HM (TM03)	655~825
Thin plate, strip	TR02	≥550
Thin plate, strip	3/4 Hard and Precipitation Heat Treatment - 3/4 HT (TH03)	450~585

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