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Copper Nickel Silicon alloys

CuNiSi performance products

Excellent thermal & electrical conductivity. _High mechanical & friction resistance.

CuNiSi alloys are hardenable and offer a unique combination of advantages. They are a material of choice for applications in high temperature, notably due to their heat conductiviy, stability at high temperature and resistance to stress relaxation.

  • Suited for friction applications in hot environments 
  • Beryllium-free and Lead-free
  • Good formability and machinability

Due to their high thermal conductivity in particuliar, CuNiSi materials are the material of choice when heat removal is necessary:

- CuNiSi a suited for friction applications in hot environments: their high properties allow to optimize the sizing or the reliability of such parts

- In high-termperature production processes like moulding, the exceptionnal thermal performances of NS30 allow higher operating temperatures and therefore quicker production tack-times

Alloy Name
Available forms
European Norms
NS5 CuNi3Si1 / CuNi2Si C18000 - C64700 CW111C datasheet
NS6 CuNi2SiCr C18000 - C64700 CW111C datasheet
NS30 Automotive CuNi7Si2Cr1 datasheet
NS30 Tooling & Molding CuNi7Si2Cr1 datasheet
Nib1 CuNiSi -
NS5 <20mm CuNi3Si1 / CuNi2Si C18000 - C64700 -
NS8 CuNi2SiCr -
Siclanic® F CuNi2Si C70260 EN 12163 - EN 12167 - EN 12420 - EN 12165 - CW111C -
Siclanic® M CuNi3SiMn C70250 -
Siclanic® S CuNi2Si C18000 - C64700 CW111C -
X302 CuNi2Si -

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