常用加工青銅的化學成分CuSn6銅合金板棒線帶價格CuSn8組別代號主要化學成分(%)雜質總和(%)錫鋁錳其它錫青銅QSn4-32.5-4.5鋅2.7-3.3≤0.3QSn4-4-2.53.0-5.0鉛1.5-3.5鋅3.0-5.0≤0.2QSn6.5-0.16.0-7.0磷0.10-0.25≤0.1QSn6.5-0.46.0-7.0磷0.26-0.40≤0.1鋁青銅QA154.0-6.0≤1.6QA176.0-8.0≤1.6QA19-28.0-10.01.5-2.5≤1.7QA19-48.0-10.0≤1.7QA110-3-1.58.5-10.01.0-2.0鐵2.0-4.0≤1.7錳青銅QMn1.51.2-1.8≤0.3QMn54.5-5.5≤0.9硅青銅QSi1-3硅0.6-1.10.1-0.4≤0.5QSi3-1硅2.7-3.51.0-1.5≤1.1鈹青銅QBe2鈹1.80-2.10鎳0.2-0.5≤0.5