牌号 GC-CuSn12，GC-CuSn12锡青铜是一种铜合金，被评价为具有优良的可切削性能，相当于GC-CuSn12铜合金。这种合金的含锡量一般在3～13%之间，主要用于制作弹性元件和耐磨零件。变形锡青铜的含锡量不超过8%，有时还添加磷、铅、锌等元素。磷是良好的脱氧剂，还能改善流动性和耐磨性。锡青铜中加铅可改善可切削性和耐磨性，加锌可改善铸造性能。这种合金具有较高的力学性能、减磨性能和耐蚀性，易切削加工，钎焊和焊接性能好，收缩系数小，无磁性。其用途包括制作形状复杂、轮廓清晰、气密性要求不高的铸件，以及蒸汽锅炉和海船零件。
德国W-Nr. 2.1052.04
旧牌号 GC-SnBz12
对应标准 DIN 1705-1981
铜锡合金铸件(锡青铜和火炮金属铸件)
归类 铜及铜合金
标签 连铸锡青铜
说明 特性：Material with good wear resistance; corrosion and sea waterresistant. The materials G-CuSn12Ni and GCuSn12Pb were developedfrom this alloy, which are characterized by increased strength andwear resistance and improved emergency running properties. SeeG-CuSn12 properties, but more uniform, 0.2 limit, higher tensilestrength and hardness
用途：Ring and tubular construction parts as well as longitudinalprofiles, e.g. Worm wheel rims, cylinder inserts, high-loadadjusting and sliding strips
GC-CuSn12 化学元素成分含量(%)
成分 | Fe | P | S | Ni | Cu | Pb | Zn | Sn | Sb | 其他合计 |
小值 | - | - | - | - | 84 | - | - | 11 | - | - |
大值 | 0.2 | 0.4 | 0.05 | 2 | 88.5 | 1 | 1 | 13 | 0.2 | 1.2 |
