... life requirements, such as punching die, cold extruding mould, precision measuring tool.2.Delivery conditionConventional or ESR, hot rolling or forging, black ... ≤0.50ChineseAmericanGermanJapaneseGBAISIDINJISCr12Mo1V1D21.2379SKD11Size AvailabilityWe offer different shapes of steels, including square, flat and round. 7Cr7Mo2V2Si High speed steel sheet