EN 12163: CuZn5 H100 – High-Performance Copper Alloy for Electrical Engineering

CuZn5 (CW500L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. CuZn5 has a favorable conductivity, resistance to atmospheric corrosion and is ideal for enamelling. Processing properties: warm forming: moderately cold forming: good machinability: unfavorable hard and soft soldering: very good TIG-welding: good burnishing: good The material is used for installation components in electrical engineering, for shock-absorber rods, metal goods as well as in jewelry and watches industry. 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	8.86 - 8.9 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	127 GPa
Hardness, Brinell	20.0 °C	100 [-]
Hardness, Vickers	20.0 °C	105 [-]
Poisson's ratio	20.0 °C	0.34 [-]
Shear modulus	23.0 °C	40 GPa	Typical for Wrought Copper Brass

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.7E-5 1/K
	300.0 °C	1.8E-5 1/K

Melting point		875 - 1075 °C	Typical for Wrought Copper Brass
Specific heat capacity	20.0 °C	377 - 380 J/(kg·K)
	100.0 °C	386 J/(kg·K)
	200.0 °C	398 J/(kg·K)

Thermal conductivity	-200.0 °C	128 W/(m·K)
	20.0 °C	234 - 243 W/(m·K)
	200.0 °C	272 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	3.30E+7 S/m
Specific Electrical conductivity		57 % IACS

Chemical properties

Property	Value
Aluminium	0.02 %
Copper	94 - 96 %
Iron	0.05 %
Lead	0.05 %
Nickel	0.3 %
Tin	0.1 %

EN 12166 Grade CuZn38Pb2 H100 – High-Quality Copper Alloy Wire for Industrial Applications EN 12168 Grade CuZn38Pb2 H120 Copper Alloy Bars – Properties & Specifications

Metal