... Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W) , Ta-7.5W2>.Available size: 0.01~4mm3>.Standard ... : As per ASTM B 365-98 UNS R05252 Ta-2.5W ... tantalum(Ta) and its alloy(Ta10W, Ta2.5W, Ta7.5W) wire.We can produce high quality tantalum(Ta ... ) and its alloy(Ta10W, Ta2.5W, Ta40Nb) plate, sheet, foil, strip, ribbon, tape, ...