BigPatents India

"A steel alloy suitable for holders and holder details for plastic moulding tools contains in weight-%: 0.06-0.15 C, 0.07-0.22 N, wherein the total amount of C + N shall satisfy the condition, 0.16<=C + N <=0.26, 0.1 - 1.0 Si, 0.1 - 2.0 Mn, 12.5 - 14.5 Cr, 0.8 - 2.5 Ni, 0.1 1.5 Mo, optionally vanadium up to max. 0.7 V, optionally, in order to improve the machinability of the steel, one or more of the elements S, Ca and O in amounts up to max. 0.25 S, max. 0.01 (100 ppm) Ca, max. 0.01 (100 ppm) O, balance iron and unavoidable impurities."