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 1.4547 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