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CuNi18Zn20 | CW409J Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Successor
CW409J (DIN EN 12166 : 1998-04) CW409J DIN EN 12166 : 1998-04 DIN EN 12166 : 1998-04 replaced by DIN EN 12166 : 2011-08 Replaced Germany CuNi18Zn20 1)
1) Remark: Material CuNi18Zn20, mat. No. CW409J is an alloy of high strength and hardness. To the comparabel mark CuNi18Zn20, mat. No. 2.0740, 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 Condition Strength Abbrevation Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A10 [%] Elongation A100 [%] Elongation A [%] Hardness HV
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Cross Reference

Material Name Country Standard
CuNi18Zn20 Bulgaria BDS 13709-76
CuNi18Zn20 Europe EN 12166
CuNi18Zn20 International ISO 430-83
MZN20N18 Poland PN-77/H-87027
CuNi18Zn20 Romania STAS 1096-83
CuNi18Zn20 Hungary MSZ 771/1-77
C76400 USA ASTM B 151
C76400 USA ASTM B 206
CuNi18Zn20 (2.0740) Germany DIN 17663

Material Compliance

REACh RoHS
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