... annual output is around 500 tons .The carbide powders are WC, TiC, Cr3C2, VC, TaC, NbC, BC4, etc GradeCompositionGrain Size(um ... )Density(g/cm3)HardnessISO3738(HRA)TRS(N/mm2)ApplicationWC(%)CO(%)JGK1290100.614.591.838000.6um grain size for the fine ... powder sintered into a grain size of cemented carbide at 0 ...