EN 12167 Grade CuNi12Zn30Pb1 R430 – High Strength, Low‑Temperature Resilient Copper Alloy

Material CuNi12Zn30Pb1, mat. No. CW406J is an alloy of high strength and hardness. To the comparabel mark CuNi12Zn30Pb1, mat. No. 2.0780, acc. to DIN 17663 : 1983-12 applies: Strength is further increasable due to the high strain hardening capability. The material does not embrittle at low temperatures. Low electrical and thermal conductivity. The alloy is non-magnetic, corrosion resistance is better than for pure copper. Machinability improves by Pb-addition, ductility decreases and cold workabiliy deteriorates. Processing properties: warm forming: unfavorable cold forming: moderately machinability: good hard and soft soldering: very good TIG-welding: moderately burnishing: good Application: Particularly in precision engineering and in toolbuilding for turning and drilling parts, in electrical engineering and electronics as well as in shipbuilding and in construction trade.

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.62 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	120 GPa
Poisson's ratio	23.0 °C	0.32 [-]	Typical for Wrought Copper Nickel Silver Grade
Tensile strength	20.0 °C	430 MPa
Yield strength Rp0.2	20.0 °C	260 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	300.0 °C	1.95E-5 1/K
Melting point		875 - 1135 °C	Typical for Wrought Copper Nickel Silver Grade
Specific heat capacity	23.0 °C	377 J/(kg·K)	Typical for Wrought Copper Nickel Silver Grade
Thermal conductivity	20.0 °C	42 W/(m·K)

Electrical

Property	Temperature	Value
Electrical conductivity	20.0 °C	4.20E+6 S/m
Specific Electrical conductivity		7 % IACS

Chemical properties

Property	Value
Copper	56 - 58 %
Iron	0.3 %
Lead	0.5 - 1.5 %
Manganese	0.5 %
Nickel	11 - 13 %
Tin	0.2 %

EN 12167 CuCo₂Be H230: High-Performance Copper Alloy EN 12167 CuNi12Zn30Pb1 R480 – High-Strength, Non-Magnetic Alloy

Metal