Products Markets Company Sustainability Career Contact search 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. Applications for tantalum and niobium carbide Cutting tools Additive to hardmetals for steel machinery Grain growth inhibitor in hardmetals Other applications Semi-finished products Cermets Roll rings Summary table Conflict-free tantalum supply Your contact at H.C. Starck Tungsten Powders contact@hcstarck.com Contact via email Download product data sheet Tantalum carbide (Ta)C, Niobium carbide (Nb)C, Tantalum niobium carbide (Ta,Nb)C Download now Tantalum and niobium carbide powders – downloads Download the product data sheets for our tantalum and niobium carbide powders directly here or visit our download area. To the downloads area Privacy Legal Notice Contact Downloads © 2021 by H.C. Starck Tungsten GmbH North America H.C. Starck Tungsten LLC Europe H.C. Starck Tungsten GmbH Asia H.C. Starck Nonferrous Metals Trading (Shanghai) Co. Ltd. Group Masan High-Tech Materials Partners ChemiLytics GmbH & Co. KG Headquarters Metallurgie Park Oker (MPO) Cookies and external media Here you will find an overview of all cookies and external media used. You can give your consent to entire categories or have further information displayed and thus select only certain cookies and external media. Your consent is voluntary and can be revoked by you at any time. You can find more information on data processing under the link "Privacy policy". Caution: Only by accepting all cookies and external media can the website be displayed correctly. Essential External media Accept all Save & close settings Accept essential cookies only Individual cookie settings Cookie details Privacy policy Legal notice