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CuNi12Zn24 | CW403J Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Predecessor Successor
CW403J (DIN EN 12167 : 2011-08) CW403J DIN EN 12167 : 2011-08 DIN EN 12167 : 2011-08 replaced by DIN EN 12167 : 2016-11 Replaced Germany CuNi12Zn24 CuNi12Zn24 1)
1) Remark: Material CuNi12Zn24, mat. No. CW403J is an alloy of high strength and hardness. 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. Processing properties: warm forming: moderately cold forming: very good machinability: moderately hard and soft soldering: very good TIG-welding: very good burnishing: very good Application: In electrical engineering and electronics for springs, contacts, membranes as well as in precision engineering and in equipment manufacturing. In food industry, for musical instruments, glasses frames, safety keys as well as in construction trade for paneling, show-cases and stairrails.

Chemical Composition

Cu [%] Fe [%] Mn [%] Ni [%] Pb [%] Sn [%]
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Mechanical Properties

Semi-finished Product Strength Abbrevation Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A11,3 [%] Elongation A [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Melting Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Poisson's Ratio Mean Coefficient of Thermal Expansion [10^-6*K^-1] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Mean Specific Heat Capacity [kJ/(kg*K)] Electric Conductivity [MS/m] Specific Electric Conductivity [% IACS]
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Cross Reference

Material Name Country Standard
CuNi12Zn24 Europe EN 12167
CuNi12Zn24 International ISO 430 1)
MNC12-24 Russia GOST 492 1)
C75700 USA UNS 1)
B151 UNS C75700 USA ASTM B151 1)
Ns6512 Germany 1)
CuNi12Zn24 Germany DIN 17663 2)
2.0730 Germany DIN 17663 2)
1) Source: Deutsches Kupferinstitut Berufsverband e.V., Düsseldorf
2) Source: DIN CEN/TS 13388 (DIN SPEC 9700)

Material Compliance

REACh RoHS
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Density

Temperature [°C] Density [g/cm³]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Designation

Designation Material number Source
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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