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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 Successor
CW403J (DIN EN 12163 : 1998-04) CW403J DIN EN 12163 : 1998-04 DIN EN 12163 : 1998-04 replaced by DIN EN 12163 : 2011-08 Replaced Germany CuNi12Zn24 1)
1) Remark: Material CuNi12Zn24, mat. No. CW403J is an alloy of high strength and hardness. To the comparabel DIN-mark CuNi12Zn24, mat. No. 2.0730, 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. 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 A10 [%] Elongation A100 [%] Elongation A [%] Hardness HB | HBW Hardness HV
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Physical Properties

Temperature [°C] Density [g/cm³]
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Cross Reference

Material Name Country Standard
CuNi12Zn24 Bulgaria BDS 13709-76
CuNi12Zn24 Europe EN 12163
CuNi12Zn24 Europe EN 1654
CuNi12Zn24 International ISO 430-83
MZN12 Poland PN-77/H-87027
CuNi12Zn24 Hungary MSZ 771/1-77
C75700 USA ASTM B 151
C75700 USA ASTM B 206
CuNi12Zn24 (2.0730) Germany DIN 17663

Material Compliance

REACh RoHS
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