c69710硅黄铜(复杂黄铜)
铜锌硅合金uns c69710具有不小于75％的铜含量。
下表显示了uns c69710棒材的机械性能与热处理和厚度的关系。
temper thickness tensile str. yield str. elong. rockwell
b c f 30t
h00 - 689mpa (100ksi) 393mpa (57ksi) 21％ 95 - - -
o60 12.7mm (0.50in) 620mpa (90ksi) 310mpa (45ksi) 20％ 85 - - -
25.4mm (1in) 586mpa (85ksi) 296mpa (43ksi) 25％ 85 - - -
50.8mm (2in) 552mpa (80ksi) 276mpa (40ksi) 25％ 85 - - -
the chemical composition of uns c69710 copper-zinc-silicon alloy is outlined in the following table.
element content (％)
copper, cu 75-80
silicon, si 2.5-3.5
arsenic, as 0.03-0.06
iron, fe 0.2
manganese, mn 0.4
lead, pb 0.5-1.5
zinc, zn 14.3-21.4
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