2.0250 普通黄铜线材
等级：Cu-Zn20
编号：CW503L
分类：铜锌合金
密度8.7 g/cm³
标准：EN 1652:1998铜和铜合金。一般用途的板、片、带和圆
EN 12163:1998铜和铜合金。通用杆
EN 12166:1998铜和铜合金。通用电线
EN 12449:1999铜和铜合金。通用无缝圆管
EN 13148:2001铜和铜合金。热浸镀锡带材
黄铜是由铜和锌所组成的合金，由铜、锌组成的黄铜就叫作普通黄铜，如果是由二种以上的元素组成的多种合金就称为特殊黄铜。黄铜有较强的耐磨性能，黄铜常被用于制造阀门、水管、空调内外机连接管和散热器等
Chemical composition % of grade 2.0250
Fe Ni Al Cu Pb Sn Others -
max 0.05 max 0.3 max 0.02 79 - 81 max 0.05 max 0.1 total 0.1 Zn - remainder
Mechanical properties of grade 2.0250
Rm - Tensile strength (MPa) (R270) 270-320
Rm - Tensile strength (MPa) (R320) 320-400
Rm - Tensile strength (MPa) (R400) 400-480
Rp0.2 0.2% proof strength (MPa) (R270) 150
Rp0.2 0.2% proof strength (MPa) (R320) 200
Rp0.2 0.2% proof strength (MPa) (R400) 320
A - Min. elongation at fracture (%) (R270) 48
A - Min. elongation at fracture (%) (R320) 28
A - Min. elongation at fracture (%) (R400) 12
A - Min. elongation Lo = 50mm (%) (R270) 38
A - Min. elongation Lo = 50mm (%) (R320) 20
A - Min. elongation Lo = 50mm (%) (R400) 5
Vickers hardness ( HV): (H055) 55 - 85
Vickers hardness ( HV): (H085) 85 - 120
Vickers hardness ( HV): (H120)