Tantalum Forgings | ASTM B365 UNS R05240 Specifications

UNS R05240 Forgings

R05240, B365

Tantalum UNS R05240 Forgings are components manufactured from alloy containing chromium and nickel with addition of copper to achieve precipitation hardening. Tantalum UNS R05240 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 R05240 Forgings supplier in India.

UNS R05240 Forgings Properties

UNS R05240 Forgings Chemical Requirements

Element C O N H Nb Fe Ti W Mo Si Ni Ta
Content, max, % weight Grades Electron-Beam Cast (R05240)
Vacuum-Arc Cast (R05240) 60 % Tantalum 40 % Columbium
0.01 0.02 0.01 0.0015 35.0-42.0 0.01 0.01 0.05 0.02 0.005 0.01 remainder

UNS R05240 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
60 % tantalum 40 % columbium (R05240) 35 000 (244) 15 000 (103) 25
  Diameter, in. (mm) Ultimate Tensile Strength, min, psi (MPa) Elongation min, %A
60 % tantalum 40 % columbium (R05240) 0.010 (0.254) to 0.0149 35 000 (244) 10
(0.379) 0.015 (0.381) to 0.0249 (0.633) 35 000 (244) 15
0.025 (0.635) to 0.124 (3.14) 35 000 (244) 20

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