GB 1176-1987 铸造铜合金技术条件 （英文版）

GB 1176-1987 铸造铜合金技术条件 （英文版）
1 General
1.1 Designations of alloy
Refer to GB 8063-87 “Designations of non-ferrous metals and their alloys”.
1.2 Alloy name
Alloys are named according to percentage composition of alloy nominal composition in GB 8063-87. Such as 5-5-5 tin bronze, 38 brass, 25-6-3-3 aluminum brass etc.
1.3 Code of casting method
S - Sand casting
J - Metal mould casting
La - Continuous casting
Li - Rotational casting
2 Technical requirements
2.1 Chemical compositions2.1.1 Chemical compositions of alloy shall be in conformity with provisions in Table 1 and Table 2.