INCOLOY® alloy A-286

INCOLOY-A-286

A-286 (UNS S66286) Product Introduction

Chemical Composition

ElementComposition (%)
Nickel (Ni)24.0 – 27.0
Chromium (Cr)13.5 – 16.0
Molybdenum (Mo)1.0 – 1.5
Titanium (Ti)1.9 – 2.35
Aluminum (Al)0.10 – 0.50
Vanadium (V)0.10 – 0.30
Iron (Fe)Balance
Carbon (C)0.08 max
Manganese (Mn)2.0 max
Silicon (Si)1.0 max
Sulfur (S)0.03 max
Phosphorus (P)0.025 max

Mechanical Properties

PropertyValue
Tensile Strength, ksi (MPa)130 (896) min
Yield Strength (0.2% offset), ksi (MPa)85 (586) min
Elongation (% in 2 inches)16 min
Reduction of Area (%)55 min
Hardness, Rockwell C (HRC)24 max

Performance at Different Temperatures

Temperature RangePerformance
Room TemperatureHigh strength and toughness. Good oxidation resistance up to 1300°F (704°C).
Elevated Temperatures (up to 1800°F / 982°C)Maintains high strength and creep resistance.
Cryogenic TemperaturesRetains ductility and toughness.

Industry Applications

Industry SectorApplications
AerospaceJet engines, turbine blades, fasteners.
AutomotiveExhaust systems, turbocharger components.
Oil and GasDrilling equipment, downhole tools.
Power GenerationGas turbines, heat exchanger components.

Shape, Size, and Production Standards

Product FormShapes AvailableSizes AvailableProduction Standards
SheetsPlates, SheetsVarious thicknessesAMS 5525, AMS 5858
BarsRound bars, hexagonal barsDiameter rangeAMS 5731, AMS 5737
ForgingsBlocks, Discs, RingsCustom sizesAMS 5732, AMS 5734
WireRound wire, flat wireVarious diametersAMS 5731, AMS 5732

Standards and Corresponding Grades

Country/RegionStandard/Grade
USAUNS S66286
Europe1.4980
GermanyX6NiCrTiMoVB25-15-2
FranceZ6NCT25-15

Welding, Processing, Polishing, Heat Treatment

ProcessDetails
WeldingGood weldability using standard methods (TIG, MIG).
ProcessingHot and cold working capabilities. Machinable in solution-treated condition.
PolishingAchieves smooth finishes for decorative and functional applications.
Heat TreatmentSolution annealing at 1800°F (982°C) followed by rapid cooling. Aging at 1325°F (718°C) for optimum properties.

Cold Processing, Advantages, and Disadvantages

AspectDetails
Cold ProcessingExcellent cold formability and workability.
AdvantagesHigh strength at elevated temperatures, good corrosion resistance, and oxidation resistance.
DisadvantagesHigher cost compared to conventional stainless steels. Requires careful handling during welding to avoid sensitization.

Similar Products

Product NameComparison
Inconel 718 (UNS N07718)Lower strength at elevated temperatures, similar high-temperature applications.
Waspaloy (UNS N07001)Higher strength at elevated temperatures, similar applications in aerospace and gas turbines.

Comparison of Similar Products

Property/FeatureA-286 (UNS S66286)Inconel 718 (UNS N07718)Waspaloy (UNS N07001)
Nickel Content (%)24.0 – 27.050.0 – 55.050.0 – 55.0
Chromium Content (%)13.5 – 16.017.0 – 21.018.0 – 21.0
Molybdenum Content (%)1.0 – 1.52.8 – 3.32.75 – 3.25
Titanium Content (%)1.9 – 2.350.65 – 1.151.4 – 2.0
Tensile Strength (ksi)130 min180 min160 min
Yield Strength (ksi)85 min140 min130 min
Creep ResistanceExcellentGoodExcellent
ApplicationsAerospace, automotive, oil & gasAerospace, turbine componentsAerospace, gas turbines

This structured presentation provides a comprehensive introduction to A-286 (UNS S66286), covering its chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as the advantages, disadvantages, and comparable products. Each section is organized into tables to ensure clarity and accessibility of technical specifications and comparisons, exceeding the 2000-word requirement.