A steel alloy has a chemical composition which contains in weight-%, 0.16-0.27
C, 0.06-0.13 N, wherein total content of C+N shall satisfy the condition, 0.3C+N0.4,
0.1-1.5 Si, 0.1-1.2 Mn, 12.5-14.5 Cr, 0.5-1.7 Ni, 0.2-0.8 Mo, 0.1-0.5 V. The steel
is suitable for plastic molding tools.
