Attributum:
Composita ex tungsteno et cupro offeruntur cum 6–50 % p.p. cupri.
Praecepta:
1. Alta resistentia ad arcum combinata cum bona conductibilitate electrica;
2. Alta conductibilitas thermica;
3. Exigua dilatatio thermica;
Parametrus：
Compositio chemica, proprietates physicae et mechanicae compositorum ex tungstenio et cupro:
| Classis | Compositio chemica (pond. %) | Densitas | Dureza | Resistivitas | IACS | Fortitudo Flexionis | ||
| Cu | Impuritates totae ≤ | W | g/cm³ ≥ | HB Kgf/mm² ≥ | μΩ·cm ≤ | % ≥ | MPa ≥ | |
| W50/Cu50 | 50±2.0 | 0.5 | RESPONDEO | 11.85 | 115 | 3.2 | 54 | -- |
| W55/Cu45 | 45±2.0 | 0.5 | RESPONDEO | 12.3 | 125 | 3.5 | 49 | -- |
| W60/Cu40 | 40±2.0 | 0.5 | RESPONDEO | 12.75 | 140 | 3.7 | 47 | -- |
| W65/Cu35 | 35±2.0 | 0.5 | RESPONDEO | 13.3 | 155 | 3.9 | 44 | -- |
| W70/Cu30 | 30±2.0 | 0.5 | RESPONDEO | 13.8 | 175 | 4.1 | 42 | 790 |
| W75/Cu25 | 25±2.0 | 0.5 | RESPONDEO | 14.5 | 195 | 4.5 | 38 | 885 |
| W80/Cu20 | 20±2.0 | 0.5 | RESPONDEO | 15.15 | 220 | 5 | 34 | 980 |
| W85/Cu15 | 15±2.0 | 0.5 | RESPONDEO | 15.9 | 240 | 5.7 | 30 | 1080 |
| W90/Cu10 | 10±2.0 | 0.5 | RESPONDEO | 16.75 | 260 | 6.5 | 27 | 1160 |
Applicationes：
1. Contactus scintillantes et contactus vacui in interruptoribus altae et mediocris tensionis aut in interruptoribus vacuis;
2. Electrodi in machinis ad sectionem per scintillam electricam;
3. Electrodi ad saldaturam resistentiam;
EN
