... , Cr3C2, VC, TaC, NbC, BC4, etcNumber and performance of plate series GradeISO CodeDensity g/cm3Hardness HRATRSN/mm2Performance & application recommendedSK6AK1014.7-15 ... .191-91.51750-1850Fine grain W-Co alloy, with high hardness and good wear-resistance, used for semi-finishing ... in broad range of plates of molding dies.SK20K4013.4-13.685-85.52500-2800With high strength and low wear resistance ...