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
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Incoloy A-286 | GH2132 | ЭИ786 | Incoloy A-286 | S66286 | X6NiCrTiMoV-B25-15-2 | 1.4980 | Z5nctdv26-15-B | DTD 5026 | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Co | Al | Ti | Cu | V | Fe |
Incoloy A-286 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.02 | ≤0.02 | 13.5-16.0 | 24.0-27.0 | ≤1.00 | ≤0.35 | 1.90-2.35 | ≤0.50 | 0.1-0.5 | Bal |
Typical Physical and Mechanical Properties (RT, Solution annealed)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HB |
7.94 | 1370-1430 | 900 | 590 | 14 | – |
Available Products and Specifications
Rod, Bar, Wire and Forgings | ASTM A638, ASME SA638 |
Plate, Sheet and Strip | AMS 5525, AMS 5858 |
Pipe and Tube | AMS 5731-5734/5737/5895 |
Welding Product | – |
Others | ASTM 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