EN 12166 CuZn30 H00 Wrought Copper Alloy – Superior Strength and Corrosion Resistance

CuZn30 (CW505L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn28. Corrosion resistance is similar to pure copper. Processing properties: warm forming: good cold forming: very good machinability: moderately hard and soft soldering: very good TIG-welding: good burnishing: very good CuZn30 is used for deep drawing components, musical instruments, hose tubes, springing elements, clockfaces and as cladding material. 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	8.55 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	100 - 125 GPa	Typical for Wrought Copper Brass
Elongation	20.0 °C	25 %
Elongation A10	20.0 °C	22 %
Elongation A100	20.0 °C	10 - 18 %
Hardness, Vickers	20.0 °C	85 - 135 [-]
Shear modulus	23.0 °C	40 GPa	Typical for Wrought Copper Brass
Tensile strength	20.0 °C	360 - 530 MPa
Yield strength Rp0.2	20.0 °C	210 - 240 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	150.0 °C	1.9E-5 1/K
	300.0 °C	2E-5 1/K

Melting point		875 - 1075 °C	Typical for Wrought Copper Brass
Specific heat capacity	20.0 °C	377 J/(kg·K)
Thermal conductivity	-200.0 °C	50 W/(m·K)
	20.0 °C	121 W/(m·K)
	200.0 °C	147 W/(m·K)

Chemical properties

Property	Value
Aluminium	0.02 %
Copper	69 - 71 %
Iron	0.05 %
Lead	0.05 %
Nickel	0.3 %
Tin	0.1 %

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Metal