Tungsten Copper Alloy Resistance Welding Electrodes with High
Conductivity Tungsten Copper Sheet
Characteristics of WCu Alloy
Tungsten copper alloys produced by Zhengzhou Sanhui have the
following characteristics:
1. high conductivity, high metal removal rate of workpiece.
2. high hardness and long service life.
3. high density, high surface finish of processing die.
4. the tungsten copper rod produced by our company has excellent
physical and mechanical properties.
5. our company can produce bars from 1mm to 60mm in diameter and
300mm in length.
Applications of WCu Alloy
1. electrical materials: it is applied to high hardness materials
and sheet EDM. The machined products have high surface finish, high
precision, low loss and effective saving.
2. contact materials: arc contacts and vacuum contacts of high and
medium voltage switches or circuit breakers, circuit board welding
and electrical contact points.
3. welding materials: submerged arc welding machine, gas shielded
welding machine nozzle, radio resistance factory (producing carbon
film resistance, metal coating resistance) resistance butt welding
machine touch welding materials (copper tungsten alloy welding
disc).
Chemical Composition And Physical Properties of WCu Alloy
| Brand and NO. | Chemical components% | Physical properties |
Cu | Total impurities ≤ |
W | Density (g/cm³) ≥ | Hardness HB ≥ | Resistivity (µΩ·cm) ≤ | Conductivity IACS%≥ | Bending strength Mpa≥ |
| CuW(50) | 50±2.0 | 0.5 | Bal. | 11.85 | 115 | 3.2 | 54 | |
| CuW(55) | 45±2.0 | 0.5 | Bal. | 12.30 | 125 | 3.5 | 49 | |
| CuW(60) | 40±2.0 | 0.5 | Bal. | 12.75 | 140 | 3.7 | 47 | |
| CuW(65) | 35±2.0 | 0.5 | Bal. | 13.30 | 155 | 3.9 | 44 | |
| CuW(70) | 30±2.0 | 0.5 | Bal. | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25±2.0 | 0.5 | Bal. | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20±2.0 | 0.5 | Bal. | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15±2.0 | 0.5 | Bal. | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10±2.0 | 0.5 | Bal. | 16.75 | 260 | 6.5 | 27 | 1160 |
