EN 12167 Grade CuZn35Ni3Mn2AlPb H130 – High-Performance Unhardenable Copper Alloy

CuZn35Ni3MnAlPb (CW710R former identification: CuZn35Ni2) is an unhardenable copper alloy. High hardness and strength parameter are achievable by cold forming only. Nickel improves strength properties, corrosion resistance and high-temperature resistance. CuZn35Ni3MnAlPb shows favorable weathering and freshwater resistance. Processing properties: warm forming: good cold forming: moderately machinability: moderately hard soldering: moderately soft soldering: unfavorable TIG-welding: good burnishing: very good Application in machine, apparatus and plant engineering, in shipbuilding e.g. for boat propeller shafts (seawater resistance).

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.28 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	93 GPa
Hardness, Brinell	20.0 °C	130 [-]
Hardness, Vickers	20.0 °C	135 [-]
Shear modulus	23.0 °C	40 GPa	Typical for Wrought Copper Brass

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	23.0 °C	371 - 418 J/(kg·K)	Typical for Wrought Copper Brass
Thermal conductivity	20.0 °C	50 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	5.90E+6 S/m
Specific Electrical conductivity		10 % IACS

Chemical properties

Property	Value
Aluminium	0.3 - 1.5 %
Copper	58 - 61 %
Iron	0.5 %
Lead	0.8 %
Manganese	1.5 - 2.5 %
Nickel	2 - 3 %
Silicon	0.1 %
Tin	0.5 %

DIN 17440: X6CrMoS17 Soft-Annealed Steel (Grade +A) – Industrial Specification EN 12167 Grade CuZn35Pb2 (H115) – Lead‑Enhanced Unhardenable Brass with Superior Machinability

Metal