W70 tungsten copper alloy sheet
W70 tungsten copper alloy sheet electrode from EJ Carbide has good resistance to high temperature, bending strength, and wear resistance. W70 tungsten copper alloy sheet electrode is mainly using as ERW (Electric resistance welding) electrode, EDM (Electrical discharge machining) electrode, High-pressure discharge tube electrode, and so on.
EDM (Electrical discharge machining) electrode: When eclipse the tungsten steel mold and other high-temperature resistance high hardness alloy material mold, the common electrodes loss large and work slow.While the W70 tungsten copper alloy sheet electrode has a high corrosion rate and low loss rate, accurate electrode shape, excellent processing performance. All those can ensure that the accuracy of the workpiece is greatly improved.
Grade information of tungsten copper material
Tungsten copper material grade
| Grade |
Chemical component |
Density
g/cm³ ≥ |
Hardness
HB Kgf/mm2 ≥ |
electrical resistivity
μΩ.cm ≤ |
electric conductivity
%IACS≥ |
Flexure strength
MPa≥ |
| W50 |
Cu50% W50% |
11.85 |
115 |
3.2 |
54 |
-- |
| W55 |
Cu45% W55% |
12.30 |
125 |
3.5 |
49 |
-- |
| W60 |
Cu40% W60% |
12.75 |
140 |
3.7 |
47 |
-- |
| W65 |
Cu35% W65% |
13.30 |
155 |
3.9 |
44 |
-- |
| W70 |
Cu30% W70% |
13.80 |
175 |
4.1 |
42 |
790 |
| W75 |
Cu25% W75% |
14.50 |
195 |
4.5 |
38 |
885 |
| W80 |
Cu20% W80% |
15.15 |
220 |
5.0 |
34 |
980 |
| W85 |
Cu15% W85% |
15.90 |
240 |
5.7 |
30 |
1080 |
| W90 |
Cu10% W90% |
16.75 |
260 |
6.5 |
27 |
1160 |
