CW450K环保磷青铜弹簧带材

W450K 环保磷青铜弹簧带材
等级：Cu-Sn4
编号：CW450K
分类：铜合金
密度8.9 g/cm³
标准：EN 1652:1998铜和铜合金。一般用途的板、片、带和圆
EN 12166:1998铜和铜合金。通用电线
EN 1654:1998铜和铜合金。弹簧和连接器用带材
EN 13148:2001铜和铜合金。热浸镀锡带材




Chemical composition % of grade CuSn4 ( CW450K )


Fe Ni P Pb Zn Sn Others -
max 0.1 max 0.2 0.01 - 0.4 max 0.02 max 0.2 3.5 - 4.5 total 0.2 Cu - remainder



Mechanical properties of grade CuSn4 ( CW450K )



Rm - Tensile strength (MPa) (R290) 290-390


Rm - Tensile strength (MPa) (R390) 390-490




Rp0.2 0.2% proof strength (MPa) (R290) 190


Rp0.2 0.2% proof strength (MPa) (R390) 210




A - Min. elongation at fracture (%) (R290) 50


A - Min. elongation at fracture (%) (R390) 13




A - Min. elongation Lo = 50mm (%) (R290) 40


A - Min. elongation Lo = 50mm (%) (R390) 11



Vickers hardness ( HV): (H070) 70 - 100
Vickers hardness ( HV): (H115) 115 - 155