www.hcstarck.comhttps://www.hcstarck.com/en/products/tantalum-and-niobium-carbide/ Tantalum and niobium carbideProductsTantalum and niobium carbide prove to be particularly resistant and powerful - ideal for hardmetal tools in a wide range of industries.Tantalum and niobium carbide prove to be particularly resistant and powerful - ideal for hardmetal tools in a wide range of industries. Tantalum and niobium carbide from H.C. Starck Tungsten Powders Tantalum carbides (TaC), niobium carbides (NbC) and their mixed carbides (Ta,Nb)C improve the performance of carbide cutting tools. Tantalum niobium carbides contribute significantly to improving the oxidation resistance, hot hardness, thermal resistance, and wear resistance of tools used in steel processing. Tantalum niobium carbides from H.C. Starck Tungsten Powders are primarily used in concentrations of 2 to 8 percent in the manufacture of hardmetals for steel processing in the ISO P application group. They are also used in concentrations of approximately 0.2 to 2 percent as grain growth inhibitors in hardmetals made of tungsten carbide cobalt (WC-Co) Properties of tantalum and niobium The tantalum carbides, niobium carbides, and tantalum niobium carbides from H.C. Starck Tungsten Powders have an especially narrow grain-size distribution and an extremely low level of impurity. H.C. Starck offers binary mixed carbide powders with ratios between (Ta,Nb)C 90/10 and (Ta,Nb)C 50/50