Changsha South Tantalum Niobium Co.,Ltd, specialize in manufacture and sale quality niobium(Nb) and its alloy( Ta3Nb,Ta20Nb, Ta30Nb, Ta40Nb) plate, sheet, foil, strip, ribbon, tape, rod, bar, wire, tube and pipe according to ASTM specifications. We supply various quality Niobium products as the below: NIOBIUM - Niobium rods (ASTM B392-95) 3mm up to 120mm Diameter x random length. - Niobium wires (ASTM B 392-95) 0. 3mm up to 3. 0mm Diameter x R / L in coil - Niobium 1% Zirconium wires (Nb-1Zr, Niobium alloy wires) 0. 3mm up to 3. 0mm Diameter x R / L in coil - Niobium plates (ASTM B393-95 R04210) Thick 0. 1 up to 20mm x Width up to 1000mm x Length Niobium sheets (ASTM B393-95 R04210) Niobium foils (ASTM B393 ) Thick 0. 05 up to 0. 08mm x Width 5-130mm x Length - Niobium seamless tubes (ASTM B394-98) Out Diameter1.5mm up to 120 mm x Wall Thickness 0. 2mm up to 5 mm x Length 6 meters max. . Niobium capillary tubes / pipes (seamless) Outer Diameter 1. 0mm up to 2. 0 mm x Wall Thickness 0. 2mm up to 0. 35 mm x Length 1 meters max. Niobium circular targets: Diameter 25mm up to 400mm x Thickness 3mm up to 28mm Niobium rectangular targets:Thickness 1mm up to 12.7mm x Width up to 600mm x Length up to 2000mm Niobium crucibles: Applications: For rare-earth metallurgy, load plates for the anodes of niobium electrolyzing capacitors and for corrosion resistant containers in chemical industries. The Special sizes are available upon customer’s requirement.