CW112C / CuNi3Si – Ductile Corrosion Resistant Material

Broder Metals Group’s CW112C is an age-hardening copper alloy, with good mechanical properties, good corrosion resistance against atmospheric and stress crack attacks, good fatigue strength and thermal resistance.CW112C / CuNi3Si

CW112C Copper Nickel Silicon Alloy Specification and Stock

CW112C is also be known by its copper numbers C70250 and C70320 and chemical reference CuNi3Si.

We stock material as 2” bar, but other sizes can be offered on short lead times.

For our complete stock make an enquiry or download our product brochure here.


CW112C is used within the oil and gas industry alongside industrial uses for its ductility.

Applications include:

  • valve guides
  • bushes and valve seats
  • current-carrying formed parts
  • contact springs / blades, switchgear
  • down-hole tools
  • shear pins
  • hydraulic valve bodies
  • pump components
  • ball valves and mechanical seals

CW112C is one of a range of alloys developed for a specific customer application by Broder Metals Group Ltd and now offered for widespread use.

Broder Metals provide CW112C with our global same day quote, next day dispatch service.  All of our metals are fully traceable for your confidence, with clear certification delivered electronically or sent with the material as requested.  For further information contact us or download our CW112C information sheet here.