Evt-15 tungsten electrodes
Buy, supplier
Buy tungsten electrode Evt-15 from the supplier Evek GmbH at an affordable price. The price is formed on the basis of European production standards. Buy tungsten electrode today you can wholesale or retail. Regular customers can take advantage of a discount system from the company Evek GmbH.
Physical properties of tungsten
| Characteristics | Value |
|---|---|
| Density [g/cm3] | 19,3 |
| Covalent radius, pm | 170 |
| Melting point | 3695°K (3422°C, 6192°F) |
| Electronegativity (by Pauling) | 2,3 |
| Electrode potential, V | W ← W3+ 0.11; W ← W6+ 0.68 |
| Oxidation states | 6, 5, 4, 3, 2, 0 |
Fabrication of tungsten electrode
Technological plasticity of tungsten is minimal, but increases with increasing temperature, so tungsten electrodes are made by hot working under pressure. First, billets are produced - by powder metallurgy a stack is made. After heating, the stub is forged by a rotary forging machine and bars of 2 to 3 mm in diameter are produced.
- Zirconium additive facilitates arcing, is a stabilizer for the arc, such electrodes are used when working with non-ferrous metals.
Electrode parameters
| Electrode brand | Tolerance | Diameter, mm | Tolerance | Length, mm |
|---|---|---|---|---|
| Evt-15 | ±0.1 | 1, 1.6, 2, 2.5, 3, 4 | ±2.0 | 75; 150; 200 |
| ±0.2 | 5, 6 | |||
| EVF | ±0.1 | 1, 1.6, 2, 2.5, 3, 4 | ||
| ±0.2 | 5, 6, 8 |
Quality requirements
Electrode surface - ground, smooth, without cracks, grease, burrs, chips, grease spots.
Delivery, price
Products offered on this site are certified. The technical documentation includes data on the chemical composition and specifies the limiting percentage of impurities. The supplier " Evek GmbH ", delivers tungsten electrodes Evt-15 of standard and non-standard sizes at a reasonable price in the shortest possible time from warehouses. The price corresponds to the high quality of the products.