ZQPb20-5 - YS /T 544-2009

Grade	ZQPb20-5
Corresponding Standard	YS /T 544-2009 Copper alloy ingots for casting
Classification	Copper and Copper Alloys

ZQPb20-5 Chemical Element Composition Content (%)

Component	Fe	Si	Mn	P	S	Pb	Al	Zn	Sn	Sb	More
Minimum Value	-	-	-	-	-	19	-	-	4	-	Cu:Remainder
Maximum Value	0.15	0.01	0.2	0.05	0.1	23	0.01	2	6	0.75	Cu:Remainder

① Brass and bronze ingots for diamagnetic applications shall have an iron content not exceeding 0.05%.
② When the purchaser has special requirements for the chemical composition, they can be determined through negotiation between the supplier and the purchaser.

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