Multimet N155 (UNS R30155 / W.Nr. 1.4971)

Multimet N155 (UNS R30155 / W.Nr. 1.4971) is a nickel-based alloy used predominantly in applications requiring strength, high temperature, and oxidation resistance. Multimet N155 can be treated to exponentially improve its temperature resistance and make it the perfect metal for tail pipes and cones, nozzles, and both turbine and afterburner components.

Equivalent Grades

Multimet N155GH1131Х21Н28В5М3БАР
Multimet N155R301551.4971

Chemical Composition, %

Multimet N1550.08-0.16≤1.01.0-2.0≤0.04≤0.0320.0-22.519.0-21.018.5-21.02.5-3.52.0-3.00.75-1.250.1-0.2Bal

Typical Physical and Mechanical Properties (RT, Solution annealed)

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

Available Products and Specifications

Rod, Bar, Wire and ForgingsAMS 5769
Plate, Sheet and StripAMS 5532
Pipe and Tube
Welding Product


  • High temperature strength
  • Oxidation resistance


Multimet N155 nickel alloy is used for numerous industrial applications, some of which include:

  • Air & land based turbine engines
  • Aircraft tail cones & tail pipes
  • Aircraft exhaust manifolds
  • Aircraft combustion chambers
  • Afterburners
  • Buckets & bolts