C65500 C65800硅青銅

普通性能

紫銅是比較純凈的一種銅，一般可近似認為是純銅，導電性、塑性都較好，但強度、硬度較差一些。紫銅具有優(yōu)良的導熱性﹑延展性和耐蝕性。紫銅中的微量雜質對銅的導電、導熱性能有嚴重影響。其中鈦、磷、鐵、硅等顯著降低電導率,而鎘、鋅等則影響很小。硫、硒、碲等在銅中的固溶度很小,可與銅生成脆性化合物,對導電性影響不大，但能降低加工塑性。

紫銅在大氣、海水和某些非氧化性酸（鹽酸、稀硫酸）、堿、鹽溶液及多種有機酸（醋酸、檸檬酸）中，有良好的耐蝕性，用于化學工業(yè)。另外，紫銅有良好的焊接性，可經冷、熱塑性加工制成各種半成品和成品。20世紀70年代，紫銅的產量超過了其他各類銅合金的總產量。

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