Tungsten Copper for Electrical
Tungsten copper electrode for electrical contacts are subjected to extreme mechanical and thermal stresses during operation. For fractions of a second, temperatures rise to several thousand degrees as a result of the arcing. Our tungsten copper electrode materials are used owing to their unique physical properties.
Advantages: without other element except tungsten and copper, uniform material, low content of gas and impurity, very high burn-off resistance, excellent thermal and electrical conductivity, all necessary joining and machining processes.
Typical properties electrical of W-Cu
| Type | Density(g/cm3) | HB(MPa) | Electrical Conductivity | Form |
| WCu10 | 16.8-17.2 | ≥2550 | > 27 % IACS | Rods, Bars Sheets,Plates, Parts |
| WCu20 | 15.2-15.6 | ≥2160 | > 34 % IACS | |
| WCu25 | 14.5-15.0 | ≥1940 | > 38 % IACS | |
| WCu30 | 13.8-14.4 | ≥1720 | > 42 % IACS |
| Grade | RWMA GroupB | Nominal composition |
Rockwell Hardness | Electrical Conductvity |
Ultimate Tensile Strength |
| WT55 | class10 | 45 copper | 79B | 55 % IACS | 435 Mpa |
| 55 tungsten | |||||
| WT70 | 30 copper | 90B | 50 % IACS | 586 Mpa | |
| 70 tungsten | |||||
| WT75 | class11 | 25 Copper | 94B | 48 % IACS | 621 Mpa |
| 75 Tungsten | |||||
| WT80 | Class12 | 20 Copper | 98B | 44 % IACS | 662 Mpa |
| 80 Tungsten | |||||
| WT85 | -- | 15 copper | 102B | 36 % IACS | 518 Mpa |
| 85 tungsten | |||||
| WT90 | -- | 10 copper | 106B | 28 % IACS | 482 Mpa |
| 90 Tungsten | |||||
| TC50 | -- | 50 copper | 94B | 47 % IACS | 483 Mpa |
| 50 Tungsten-Carbide | |||||
| TC70 | -- | 30 copper | 37C | 30 % IACS | 587 |
Cross Breaking Strength |
Density GMS/CC | Thermal Exp in/in cx10(6) at 20° | Thermal Conductivity W/CM 20-400°C | Specific Heat/kg°C at 20° |
Electro resistance at 20° |
| 759 | 12.6 | 11.8 | 2.4 | 251 | 3.16 |
| 966 | 14.18 | 10.77 | 2.01 | 214 | 3.41 |
| 1035 | 14.7 | 10.22 | 1.89 | 201 | 3.51 |
| 1173 | 15.58 | 9.2 | 1.82 | 188 | 3.9 |
| 1173 | 16.19 | 7.97 | 1.75 | 175 | 4.71 |
| 1035 | 17.05 | 6.49 | 1.47 | 163 | 6.1 |
| 966 | 11.27 | 12.2 | -- | -- | 3.6 |
| 1241 | 12.6 | 9.8 | -- | -- | 5.7 |
Any feedback or inquiry of Tungsten Copper Alloy Products please feel free to contact us:
Email: sales@chinatungsten.com
Tel.: +86 592 512 9696 ; +86 592 512 9595
Fax.: +86 592 512 9797