About Smiths Advanced

We are a leading stockholder and global supplier of metals and plastics into Aerospace & Space, Chemical, Defence, Medical, MRO, Naval, Nuclear, Oil & Gas and Power industries.

We make high quality materials available in a fast, cost-effective and convenient package and provide a consistent supply path for all our customers.

UKAS Laboratory

Aminox AS1™ Stainless Steel Bar

Austenitic stainless steel.


Aminox AS-1™ is an austenitic stainless steel based around Type 316L but with improved chemistry.

Aminox AS-1™ is Smiths designated high-quality stainless steel bar grade.


Aminox AS1™ austenitic stainless steel is based around Type 316L but has a much closer controlled chemical composition. The alloy includes 17% chromium, 12% nickel and 2% molybdenum. Aminox AS1™ offers moderate tensile strength with good corrosion resistance to a broad range of media. The quality of this alloy is assured due to the testing regime in place. Testing methods include notch impact, hardness and intercrystalline corrosion testing. Measurement of the ferrite content and gain size controls the effects of the alloy's microstructure.


Weld Decay

Aminox AS1™ has low levels of carbon, which reduces the occurrence of weld decay (sensitisation) during welding. Susceptibility to intercrystalline corrosion is tested under ASTM A262-a Practice E or DIN 50914 for 24 hours. Ultrasonic inspection is to ASTM A388.



Aminox AS1 Stainless Steel Bar Datasheet

Stock Availability

Smiths Advanced Metals stocks Aminox AS1™ stainless steel bars in a solution-treated condition. We supply bars in closer incremental sizes, which may remove any further need for machining.



Product Features:


    1.4404
    AD2000-W2
    Aminox AS-1
    ASME SA484
    ASTM A182, ASME SA182
    ASTM A276, ASME SA276
    ASTM A479, ASME SA479
    DIN17440
    NACE MR0175
    Norsok M-630
    UNS S31603
    X2CrNiMo17-12-2

    High-performance electrical connectors
    Pump & valve components
    Low magnetic permeability equipment
    Components and equipment in oil & gas

    Good corrosion resistance in various of medias
    Very good machinability
    Moderate mechanical strength
    Closely controlled chemical composition

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