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We are specialists in engineering materials support to improve the aerospace MRO supply chain.

Smiths MRO is a sub-divsion of a larger business - Smiths Advanced Metals.

Smiths MRO focuses on raw material support for the global aircraft maintenance, repair and overhaul market. Our business is supported by a broad and diverse stock range with a dedicated team that provides outstanding service levels required for our industry.

Our dedicated export team ship goods worldwide.

A286 Bar (AMS 5737, AMS 5732)

Austenitic Superalloy

We stock A286 iron-nickel-chromium superalloy.

A286 stainless steel bar offers high strength corrosion resistance.

Our A286 bars offer improved hardness when compared to many nickel-based stainless steel alloys, and the alloy is easily machined and formed. We stock the alloy to support the MRO market, and the material finds use in thrust nozzles and jet engine parts. The product was one of the first 'superalloys' introduced.


A286 is often referred to as a 'superalloy' due to its combination of high tensile strength, corrosion resistance and precipitation hardenability. The material is used in the aircraft sector within engine and turbine parts and components as it works well in high-temperature applications and displays good corrosion and oxidation resistance. A286 is commonly available, solution and precipitation heat-treated, in bar form to AMS 5737 or AMS 5732 specifications.


The alloy is a nickel-chromium austenitic precipitation-hardened stainless steel that is predominantly iron-based. A286 provides high strength retention at elevated temperatures of 704°C (1300°F). Production is via the vacuum induction melting (VIM) or vacuum oxygen decarburisation (VOD) process. Once complete, the alloy undergoes remelting using vacuum arc or electro slag processes to finish the material.


A286 finds typical use in lower stress applications at high temperatures and provides good corrosion and oxidation resistance. The alloy also performs well in cryogenic environments. Jet engine turbines, afterburners, shafts and fasteners all utilise alloy A286.

We stock AMS 5737 and AMS 5732 specification bars in diameters from 0.5" diameter up to 6" diameter. However, even larger sizes are available with short lead times. As an MRO support company, we offer engineering raw materials from stock on rapid delivery times to keep your aircraft in the air.

Product Features:

    AMS 5737
    AMS 5732

    Jet turbines

    Good corrosion and oxidation resistance
    Improved hardness
    High tensile strength
    Precipitation hardened

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