Nimonic C-263 (UNS N07263 / W.Nr. 2.4650)

Nimonic C-263 (UNS N07263 / W.Nr. 2.4650) is a precipitation-hardenable nickel-chromium-cobalt alloy with an addition of molybdenum for solid-solution strengthening. It has high strength and corrosion resistance along with good formability and high-temperature ductility in welded structures. The alloy is especially suitable for sheet applications. Used in gas turbines for rings, casings, and various sheet fabrications.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Nimonic C-263
Nicrofer 5120 CoTi
GH4163Nimonic C-263N07263NiCo20Cr20MoTi2.4650NCK20D
ATG W0
Nimonic C-263

Chemical Composition, %

AlloyCSiMnPSCrNiCoMoAlTiCuBFe
Nimonic C-2630.04-0.08≤0.40≤0.60≤0.015≤0.00719.0-21.0Bal19.0-21.05.6-6.10.3-0.61.9-2.4≤0.20≤0.005Bal

Typical Physical and Mechanical Properties (RT, Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HRB
8.361300-1355100458545/

Available Products and Specifications

Rod, Bar, Wire and ForgingsDIN 17752, DIN 17753, DIN 17754
Plate, Sheet and StripDIN 17750
Pipe and TubeDIN 17751
Welding Product
OthersDIN 17744

Features

  • Good formability
  • High temperature ductility in welded structures

Applications

Nimonic C-263 is mainly used in gas turbine hot section components.