CuNi3Si is an optimized CuNiSi alloy that can be hardened by cold forming and by precipitation of NiSi-phases during a heat treatment. It has excellent bend ability, excellent hot and cold forming properties, a high strength and a good corrosion resistance. Due to the NiSi-precipitations the relaxation properties, even at temperatures up to 150°C are excellent. In combination with a tin coating even at temperatures around 150°C (3.000h) the tin coating does not peel off. The electrical and thermal conductivity is good. Welding, soldering and brazing properties are good too. The alloy is registered US EPA antimicrobial.

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