... 3628,ASTM B 386,etc. Different sizes availabl pure tantalum strip Tantalum is dark, dense, ductile, very hard, easily fabricated, and ... .00270-300±2.0≥1000>0.01-0.02±0.002±0.003>0.02-0.05±0.003±0.004 ... of forms including nut, screw ,ring ,wire, foil, sheet, rod, strip, plate, tube, alloys according to Standard ASTM AMS ASME MIL ...