EN 1652 Grade CuNi25 R290

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Description

CuNi25 is comparable to CuNi25, mat. no. 2.0830, acc. to DIN 17664 : 1983-12. To the comparable DIN-mark applies: The material shows favorable specific strength values also at endurance loading and increased temperatures. Thermal conductivity of pure copper is strongly reduced by Ni, the electrical resistance strongly increases according to the Ni-content. CuNi25 is corrosion and wear resistant. warm forming: good cold forming: good machinability: moderately hard soldering: very good soft soldering: very good gas-shielded welding: very good burnishing: very good Application: Preferred alloy for coins due to its silver-white color, brilliance, tarnish resistance and favorable wear resistance. Further application as cladding material.

Related Standards

Equivalent Materials

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Eigenschaften

Allgemein

Property	Temperature	Value
Dichte	20.0 °C	8.9 g/cm³ Show Material materials with Dichte of 8.9 g/cm³

Mechanisch

Property	Temperature	Value
Elastizitätsmodul	20.0 °C	145 GPa Show Material materials with Elastizitätsmodul of 145 GPa
Streckgrenze Rp 0,2	20.0 °C	100 MPa Show Material materials with Streckgrenze Rp 0,2 of 100 MPa
Zugfestigkeit	20.0 °C	290 MPa Show Material materials with Zugfestigkeit of 290 MPa

Thermisch

Property	Temperature	Value	Comment
Koeffizient der thermischen Ausdehnung	300.0 °C	1.55E-5 1/K Show Material materials with Koeffizient der thermischen Ausdehnung of 1.55E-5 1/K
Schmelzpunkt		915 - 1240 °C Show Material materials with Schmelzpunkt of 915 - 1240 °C	Typical for Wrought Copper Nickel Grade
Spezifische Wärmekapazität	23.0 °C	375 - 398 J/(kg·K) Show Material materials with Spezifische Wärmekapazität of 375 - 398 J/(kg·K)	Typical for Wrought Copper Nickel Grade
Wärmeleitfähigkeit	20.0 °C	29 W/(m·K) Show Material materials with Wärmeleitfähigkeit of 29 W/(m·K)

Chemical properties

Property	Value
Blei	0.02 % Show Material materials with Blei of 0.02 %
Eisen	0.3 % Show Material materials with Eisen of 0.3 %
Kobalt	0.1 % Show Material materials with Kobalt of 0.1 %
Kohlenstoff	0.05 % Show Material materials with Kohlenstoff of 0.05 %
Mangan	0.5 % Show Material materials with Mangan of 0.5 %
Nickel	24 - 26 % Show Material materials with Nickel of 24 - 26 %
Schwefel	0.05 % Show Material materials with Schwefel of 0.05 %
Zink	0.5 % Show Material materials with Zink of 0.5 %
Zinn	0.03 % Show Material materials with Zinn of 0.03 %