Tantalum Forgings | ASTM B365 UNS R05255 Specifications

UNS R05255 Forgings

R05255, B365

Tantalum UNS R05255 Forgings are components manufactured from alloy containing chromium and nickel with addition of copper to achieve precipitation hardening. Tantalum UNS R05255 Forgings are used in the oil and gas, nuclear and aerospace industries where a combination of high strength, corrosion resistance and a generally low but acceptable degree of toughness is required. TorqBolt is an eminent Tantalum UNS R05255 Forgings supplier in India.

UNS R05255 Forgings Properties

UNS R05255 Forgings Chemical Requirements

Element C O N H Nb Fe Ti W Mo Si Ni Ta
Content, max, % weight Grades Electron-Beam Cast (R05255)
Vacuum-Arc Cast (R05255) 90 % Tantalum 10 % Tungsten
0.01 0.015 0.01 0.0015 0.1 0.01 0.01 9.0-11.0 0.02 0.005 0.01 remainder

UNS R05255 Forgings Mechanical Requirements

  Rod
0.125 in. (3.18 mm) to 2.5 in. (63.5 mm) Diameter
Ultimate Tensile Strength, min, psi (MPa) Yield Strength, min, psi (MPa) Elongation, min, % 1 in. (25.4 mm) Gage Length
90 % tantalum 10 % tungsten R05255 70 000 (482) 55 000 (379) 20
  Diameter, in. (mm) Ultimate Tensile Strength, min, psi (MPa) Elongation min, %A
90 % tantalum 10 % tungsten (R05255) 0.010 (0.254) to 0.0149 (0.379) 70 000 (482) 5
0.015 (0.381) to 0.0249 (0.633) 70 000 (482) 10
0.025 (0.635) to 0.124 (3.14) 70 000 (482) 15

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