We offer Tantalum carbide with purity 99.6%min,Used for additive in hard alloys. ... max)Particle SizeNbCarbon-freeCarbon-totalAlCaFeKNNaOSSiTiTaC-199.60.30.1≥6.200.010.010.050.0020.0250.0020.250. ... .010.01<1.2umTaC-299.61.00.15≥6.200.010.020.150.0020.050.0020.20 ... , praseodymium, neodymium and dysprosium alloys, metal lanthanum, low iron, low magnesium mixed rare earth alloy, magnetic materials, phosphors ...