Tungsten Copper Contact Proportion
Tungsten copper contact has both advantages of W and Cu, such as high hardness, high strength, excellent conductivity and wear or corrosion resistance. According to different content of W and Cu, tungsten copper rod proportion or grades include W50、W55、W60、W65、W70、W75, etc. And different proportion has different applications
W50~W55 tungsten copper contact is composed of 50~55% W and 45~50% Cu, which not only has high density (11.85g/cm3), high hardness (≥HB115), high strength, but also has good conductivity (%54IACS), softening temperature is ≥900℃. It mainly used in relays, high voltage switches, circuit breakers and other higher demands of electrical and thermal conductivity, arc erosion resistance.
W60~W65 tungsten copper contact is composed of 60~65% W and 35~40% Cu, which not only has high density (12.75g/cm3), high hardness (≥HB140), high strength, but also has good conductivity (%47IACS), softening temperature is ≥900℃. It can provide the essentials for discharge tube working steady.
Tungsten copper W70~75 contact is composed of 70~75% W and 25~30% Cu so that it is harder than W50 and W60 rods. Its density is up to 12.75g/cm3, hardness reaches more than HB140, and conductivity is 47%IACS, softening temperature is ≥900℃ and the bending strength is 790. It has excellent mechanical strength and anti-arc ablation capability so that it can be used for vacuum contacts, transformer switch and some electrical forging industries.
Any feendback or inquiry of Tungsten Copper Alloy Products please feel free to contact us:
Tel.: +86 592 512 9696 ; +86 592 512 9595
Fax.: +86 592 512 9797