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CuNi7Zn39Pb3Mn2 | CW400J Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country Predecessor Successor VDA 231-106 classification
CW400J (DIN EN 12165 : 2011-08) CW400J DIN EN 12165 : 2011-08 DIN EN 12165 : 2011-08 replaced by DIN EN 12165 : 2016-11 Replaced Germany CuNi7Zn39Pb3Mn2 CuNi7Zn39Pb3Mn2 3.2 1)
1) Remark: CW400J, also known as German silver or Nickel silver, has a very good machinability and high strength. It is very well suited for the production of sections, hot-formed parts, with requirements for higher strength and higher corrosion resistance compared to brass.

Chemical Composition

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

Semi-finished Product Strength Abbrevation Nominal Size [mm] Temperature [°C] Hardness HB | HBW
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Physical Properties

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

Material Name Country Standard
CuNi7Zn39Pb3Mn2 Europe EN 12165
Neusilber
Nickel silver
German silver

Producer/Supplier/Trade names

Tradename Supplier
N31 Wieland-Werke AG, Ulm

Material Compliance

REACh RoHS
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