EN 1652 CuZn15 H125 Wrought Copper Alloy – High Strength & Excellent Electrical Conductivity

CuZn15 (CW502L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn10. Corrosion resistance is similar to pure copper. Processing properties: warm forming: moderately cold forming: good machinability: moderately hard and soft soldering: very good TIG-welding: good burnishing: very good CuZn15 is used in electrical engineering, for metal goods as well as in jewelry industry, for metall hoses, pressure measuring instruments, signs, casings and suspension bodies. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.73 - 8.8 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	120 - 122 GPa
	100.0 °C	119 GPa
	200.0 °C	114 GPa
	300.0 °C	109 GPa
	400.0 °C	103 GPa
	500.0 °C	94 GPa
	600.0 °C	84 GPa
	700.0 °C	74 GPa

Hardness, Vickers	20.0 °C	125 - 155 [-]
Poisson's ratio	20.0 °C	0.34 [-]
Shear modulus	20.0 °C	45 GPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	1.7E-5 - 2.1E-5 1/K	Typical for Wrought Copper Brass
Melting point		875 - 1075 °C	Typical for Wrought Copper Brass
Specific heat capacity	20.0 °C	377 - 380 J/(kg·K)
Thermal conductivity	20.0 °C	159 W/(m·K)
	80.0 °C	167 W/(m·K)
	120.0 °C	172 W/(m·K)
	160.0 °C	176 W/(m·K)
	200.0 °C	184 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	2.10E+7 - 2.20E+7 S/m
Electrical resistivity	20.0 °C	4.7E-8 Ω·m
Specific Electrical conductivity		36 - 38 % IACS

Chemical properties

Property	Value
Aluminium	0.02 %
Copper	84 - 86 %
Iron	0.05 %
Lead	0.05 %
Nickel	0.3 %
Phosphorus	0.2 %
Tin	0.1 %

CuZn15 (CW502L) – High-Strength, Unhardenable Wrought Alloy for Electrical and Jewelry Applications EN 1652 Grade CuZn20 H055: Unhardenable Wrought Alloy for Precision Applications

Metal