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By selecting high purity tungsten and oxygen-free copper, all of our tungsten copper alloys are produced by sintering and infiltrating process. In terms of different types, the composition of tungsten and copper are well-proportioned and accurate percentage. The proportion of cooper accounts for 10% to 50%. Tungsten copper alloy possesses excellent properties from both tungsten and copper. It is of high arc resistance, good electrical conductivity, high thermal conductivity, low thermal expansion as well as high wear resistance characteristics.
Property:
Content | density(g/cm³) | HARDNESS(HRB) | Electrical conductivity(%IACS) | Class | RWMA |
(%wt.) | ≥ | ≥ | ≥ | ||
W50,Cu:balance | 11.85 | 65 | 54 | ||
W55,Cu:balance | 12.3 | 70 | 49 | 10 | 10.7445 |
W70,Cu:balance | 13.85 | 85 | 42 | ||
W75,Cu:balance | 14.5 | 94 | 38 | 11 | 11.744 |
W80,Cu:balance | 15.15 | 98 | 34 | 12 | 12.7435 |
W85,Cu:balance | 15.9 | 240HB | 30 | ||
W90,Cu:balance | 16.75 | 260HB | 27 |
Application:
1) EDM electrodes
2) other electrical and electrical/thermal applications
3) facing and inserts for flash and butt welding dies
4) other welding electrodes
5) guide material: for wire coil steel rolling
6) facing for electro-forming and electro-forging dies.
