... 2.Cr12Mo1V1, D2, 1.2379, SKD11 D2 Cold Working Die High Speed SteelSteel Grade: Cr12Mo1V1, D2, 1.2379, SKD11Chemical Composition(%)CSiMnCrVP/S ... PunchesWear InsertsD2 tool steel is a high carbon, high chromium heat treatable tool steel intended for applications requiring high wear resistance.Surface TreatmentsD-2 can ... at or above the process temperature D2 Cold Working Die High Speed Steel