EN 1652 CuZn37Pb0.5 Brass Alloy – Lead-Enhanced, High‑Strength Wrought Material

Material CuZn37Pb0,5, mat. No. CW604N, is an unhardenable wrought alloy. To the comparable make CuZn37Pb0,5, mat. No. 2.0332 acc. to DIN 17660 : 1983-12 applies: High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for the unleaded brass grade of the same Zn-content. Machinability is improved by Pb-addition. Corrosion resistance to water, several saline solutions and organic liquids is also lower than for unleaded alloys of the same zinc-content. Processing properties: warm forming: good cold forming: good machinability: good hard soldering: moderately soft soldering: very good TIG-welding: moderately burnishing: very good Application: for extruded profiles of high accuracy, for circuit boards and wheels for watch industry as well as for pressure brass components.

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.44 g/cm³

Mechanical

Property	Temperature	Value
Elastic modulus	20.0 °C	110 GPa
Hardness, Vickers	20.0 °C	140 - 170 [-]
Shear modulus	20.0 °C	38 GPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	200.0 °C	2.04E-5 1/K
Melting point		875 - 1075 °C	Typical for Wrought Copper Brass
Specific heat capacity	23.0 °C	371 - 418 J/(kg·K)	Typical for Wrought Copper Brass
Thermal conductivity	20.0 °C	113 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	1.47E+7 S/m
Electrical resistivity	20.0 °C	6.8E-8 Ω·m
Specific Electrical conductivity		25 % IACS

Chemical properties

Property	Value
Aluminium	0.05 %
Copper	62 - 64 %
Iron	0.1 %
Lead	0.1 - 0.8 %
Nickel	0.3 %
Tin	0.2 %

EN 1652 CuZn37Pb0.5 H110: High-Performance Unhardenable Brass Alloy EN 1652 Grade CuZn37Pb0.5 H170 – Lead-Enhanced Brass with Superior Strength and Machinability

Metal