Project Description

Incoloy A-286 (UNS S66286 / W.Nr. 1.4980)

Incoloy A-286 (UNS S66286 / W.Nr. 1.4980) is an iron-nickel-chromium alloy with additions of molybdenum and titanium. A 286 is one of the most popular high temperature alloys. As one of the austenitic alloys it maintains good strength and oxidation resistance at temperatures up to 1300ºF. Due to it’s high strength and excellent fabrication characteristics A286 is used in various components of aircraft and industrial gas turbines. A286 is also widely used in the offshore oil and gas industry where the components are subject to high levels of heat and stress.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
Incoloy A-286GH2132ЭИ786Incoloy A-286S66286X6NiCrTiMoV-B25-15-21.4980Z5nctdv26-15-BDTD 5026––

Chemical Composition, %

AlloyCSiMnPSCrNiCoAlTiCuVFe
Incoloy A-286≤0.08≤1.00≤2.00≤0.02≤0.0213.5-16.024.0-27.0≤1.00≤0.351.90-2.35≤0.500.1-0.5Bal

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaELongation, %Hardness, HB
7.941370-143090059014–

Available Products and Specifications

Rod, Bar, Wire and ForgingsASTM A638, ASME SA638
Plate, Sheet and StripAMS 5525, AMS 5858
Pipe and TubeAMS 5731-5734/5737/5895
Welding Product–
OthersASTM B366, ASME SB366

Features

  • Excellent fabrication characteristics
  • High mechanical properties due to age-hardenability
  • High ductility in notched sections
  • Good creep-rupture strength during extended high-temperature exposure
  • Can be produced by AOD reefing or vacuum induction melting
  • Good for moderate corrosion applications in aqueous solutions

Applications

  • Automotive engines and manifold components
  • Offshore and oil and gas components
  • Turbine wheels, blade, frames, and casings
  • Jet engines, and afterburner parts and fasteners