Cu Sn Pb Zn Fe Ni (含 Co) Al Mn C83450 87.0~89. 0 2.0~3.5 1.5~3.0 5.5~7.5 —— 0.75~2.0 —— —— C83800 82.0~83. 8 3.3~4.2 5.0~7.0 5.0~8.0 —— 1 —— —— C84400 78.0~82. 0 2.3~3.5 6.0~8.0 7.0~10.0 —— 1 —— —— C84800 75.0~77. 0 2.0~3.0 5.5~7.0 13.0~17. 0 —— 1 —— —— C85200 70.0~74. 0 0.7~2.0 1.5~3.8 20.0~27. 0 —— —— —— —— C85400 65.0~70. 0 0.50~1.5 1.5~3.8 24.0~32. 0 —— —— —— —— C85700 58.0~64. 0 0.50~1.5 0.8~