Тантал лист / пластина (ASTM)

Baoji Zhong Bang rare metal materials CO.,LTD holds Tantalum ,Niobium as the dominant products in the scope of rare metal new materials, including many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on. Tantalum features high melting point , low vapor pressure , good cold processability ,excellent chemical stability , good resistance to corrosion , high dielectric constant ,in surface oxide film .widely used in many industries such as electronics ,metallurgy, chemical processing , hard alloy cutters , aerospace and aviation. Product name:Tantalum sheet/plate(highly polished) Purity : 99.95% or 99.99% Standard:ASTM B708 Materials:R05200/R05400/R05255 Special requirements to be agreed on by the supplier and buyer of negotiation. Tantalum plate, tantalum sheet (ASTM B708-98 R05200) 0. 1mm up to 1. 0 mm Thickness x Width(600mm max)X Length(1500mm max); 1. 0mm up to 20mm Thickness x Width(1200mm max)X Length(1500mm max); Tantalum foil ,Tantalum strip(ASTM B708-98 R05200) 0. 05mm Thickness x Width(1000mm max)X Length(1500mm max); Chemistry % Designation Chief component Impurities maxmium Ta Nb Fe Si Ni W Mo Ti Nb O C H N Ta1 Remainder 0.004 0.003 0.002 0.004 0.006 0.002 0.03 0.015 0.004 0.0015 0.002 Ta2 Remainder 0.01 0.01 0.005 0.02 0.02 0.005 0.08 0.02 0.01 0.0015 0.01 Table 1:Chemical composition: Table 2. Mechanical requirements (annealed ) Grade and size AnnealedTensile strengthmin, psi (MPa)Yield strength min,psi (MPa)(2%)Elongation min, % (1 inch gage length)Sheet, foil. and board (RO5200, RO5400)Thickness<0.060"(1.524mm)Thickness≥0.060"(1.524mm)30000 (207)20000 (138)2025000 (172)15000 (103)30Ta-10W(RO5255)Sheet, foil. and board70000 (482)60000 (414)1570000 (482)55000 (379)20Ta-2.5W (RO5252)Thickness<0.125" (3.175mm)Thickness≥0.125" (3.175mm)40000 (276)30000 (207)2040000 (276)28000(193)20Ta-40Nb(RO5240)Thickness<0.060"(1.524mm)40000 (276)28000 (193)20