| 摘要 |
PROBLEM TO BE SOLVED: To provide brass containing no lead (Pb) and is excellent in cutting property, castability, corrosion resistance, mechanical properties, etc. SOLUTION: The brass comprises 62-75 wt.% Cu, 0.3-1.5 wt.% Bi, 0.1-0.5 wt.% Sn, 0.15-0.5 wt.% P, 0.1-1.0 wt.% Al, 0.0005-0.0035 wt.% B, 0.5-1.0 wt.% Si, 37.5-40.0% of apparent Zn and the balance substantially being Zn and unavoidable impurities. COPYRIGHT: (C)2011,JPO&INPIT
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