Steels with a chromium content greater than 10,0% characterized by excellent mechanical properties due to the ageing process at set temperatures.
This treatment generates a sub-microscopic phase precipitation of an element (e.g. Cu, Ti) consistent with the martensitic matrix of steel, thus enhancing the mechanical properties.
| Valbruna Grade | W.N. | AISI | UNS | EN |
|---|---|---|---|---|
| AV177AL | 1.4568 | 631 | S17700 | X7CrNiAl17-7 |
| V138 | 1.4534 | XM-13 | S13800 | X3CrNiMoAl13-8-2 |
| V145 | - | XM-25 | S45000 | - |
| V145/1 | 1.4594 | - | - | X5CrNiMoCuNb14-5 |
| V155 | 1.4545 | XM-12 | S15500 | X5CrNiCuNb15-5 |
| V157M | - | 632 | S15700 | - |
| V174 | 1.4542 | 630 | S17400 | X5CrNiCuNb16-4 |
| V174/1 | 1.4542 | 630 | S17400 | X5CrNiCuNb17-4-4 |
| V174F1 | 1.4542 | 630 | S17400 | X5CrNiCuNb16-4 |
| V174LC | 1.4542 | 630 | S17400 | X5CrNiCuNb16-4 |
| X154MU/2 | 1.4594 | - | - | X5CrNiMoCuNb14-5 |