Tantalum is a grayish silver, dense, ductile, very hard, easily fabricated, and highly corrosion resistant metal. It is part of the refractory metals group and occurs naturally in the mineral tantalite, always together with the chemically similar niobium.
Tantalum is almost completely immune to chemical attack at temperatures below 150° C, and is attacked only by hydrofluoric acid, acidic solutions containing the fluoride ion, and free sulphur trioxide. The element has a melting point exceeded only by tungsten and rhenium.
2. Tantalum plate, sheet, foil, strip, ribbon Standards: ASTM B708, R05200, R05400, R05255, R05252, R05240 Size Available: Thick 0.02mm min * wide 1200mm max * long 2500mm max
3. Tantalum round rod, rectangular bar Standards: ASTM B365, R05200, R05400, R05255, R05252, R05240 Size available: Outer Diameter 3mm ~ 350mm * Long 6000mm max
4. Tantalum wire (metallurgy grade, capacitor grade) Standards: ASTM B365, R05200, R05400, R05255, R05252, R05240 Size Available: Dia 0.1mm min * Length in coil
5. Tantalum tube, pipe Standards: ASTM B521, R05200, R05400, R05255, R05252, R05240 For seamless, size available: OD 4-115mm * Wall thick 0.2~8mm * Long 9000mm max For welded, size available: OD 80~ 650mm * Wall thick 1 ~ 10mm * Long 6000 max
6. Tantalum forgings and castings
7. Featured Tantalum Alloys & Cermets Ta-2.5W: UNS R05252, Ta + 2.5% W alloy Ta-7.5W: Ta+7.5%W alloy Ta-10W: UNS R05255, Ta+10% W alloy Ta-30Nb: Ta+30%Nb alloy Ta-40Nb: UNS R05240, Ta+40%Nb alloy TaC (Tantalum Carbide): Tantalum carbide (TaC) is an extremely hard (Mohs hardess 9-10) refractory ceramic material, which is commercially used in tool bits for cutting tools.