Grade ZQAl9-4
Corresponding Standard YS /T 544-2009
Copper alloy ingots for casting
Classification Copper and Copper Alloys
ZQAl9-4 Chemical Element Composition Content (%)
Component Fe Si Mn Pb Al Zn Sn More
Minimum Value 2 - - - 8.7 - - Cu:Remainder
Maximum Value 4 0.1 1 0.1 10.7 0.4 0.2
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.
ZQAl9-4 Corresponding Standards(Same grade name, different standards)

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