... alloy wire1>.Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W) , Ta-7.5W2>.Available size: 0.01~4mm3>. ... per ASTM B 365-98 UNS R05252 Ta-2.5W UNS R05255 Ta-10W4>.Purity : >=99.95% to ... chemical equipment We are manufacturer to produce high quality 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, ...