Tantalum-10% Tungsten and Tantalum-2.5% tungsten have a higher strength at elevated temperatures, and better corrosion resistance than pure tantalum.
Standard: ASTM B365
Grade: RO5200, RO5400, RO5252 (Ta-2.5W), RO5255 (Ta-10W)
Specifications: 0.25 100mm
Executive Standard: ASTM B365-98 T