C65500 C65800硅青铜

C65500 C65800硅青铜

普通性能

紫铜是比较纯净的一种铜，一般可近似认为是纯铜，导电性、塑性都较好，但强度、硬度较差一些。紫铜具有优良的导热性﹑延展性和耐蚀性。紫铜中的微量杂质对铜的导电、导热性能有严重影响。其中钛、磷、铁、硅等显著降低电导率,而镉、锌等则影响很小。硫、硒、碲等在铜中的固溶度很小,可与铜生成脆性化合物,对导电性影响不大，但能降低加工塑性。

紫铜在大气、海水和某些非氧化性酸（盐酸、稀硫酸）、碱、盐溶液及多种有机酸（醋酸、柠檬酸）中，有良好的耐蚀性，用于化学工业。另外，紫铜有良好的焊接性，可经冷、热塑性加工制成各种半成品和成品。20世纪70年代，紫铜的产量超过了其他各类铜合金的总产量。

differences. The column in the middle states the norm and its country of origin.

With no marks in front of LM’s alloy = alloy is identical, with this sign “~” = alloy is very similar, fully replaceable.

Product name Country of origin LM’s trade name by or order/inquiry

JM 1  Johnson Metall / Own brand name on Swedish standard  Rg7 (Cu Sn7 Zn4 Pb7), CC493K

JM 2  Johnson Metall / Own brand name on Swedish standard  SS 5443-15 (Cu Sn10), CC480K

JM 3  Johnson Metall / Own brand name on Swedish standard  SS 5465-15 (Cu Sn12), CC483K

JM 4  Johnson Metall / Own brand name on Swedish standard  Cu Pb15 Sn (Cu Pb15 Sn7), CC496K

JM 5  Johnson Metall / Own brand name on Swedish standard  SS 5640-15 (Cu Pb10 Sn10), CC495K

JM 6  Johnson Metall / Own brand name on Swedish standard  SS 5710-15 (Cu Al10 Fe3), CC331G

JM 7  Johnson Metall / Own brand name on Swedish standard  SS 5716-15 (Cu Al10 Ni5 Fe4 F70), AB-200