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.

Supply Packages

BS S99 Steel Bar

Supplied in the annealed or bright annealed condition.

BS S99 is classed as an aircraft alloy but finds widespread use in engineering applications.

BS S99 is a nickel-chromium-molybdenum steel bar product with high strength and good ductility.

The alloy is typically supplied in the annealed or bright annealed condition and benefits from high tensile strength combined with good notch toughness. BS S99 is high carbon steel with the addition of nickel, chromium and molybdenum. The molybdenum prevents the material from being responsive to temper brittleness. Other benefits include good creep resistance and mechanical property retention at low and elevated temperatures.

Aerospace Grade

BS S99 is classed as an aircraft alloy but finds widespread use in engineering applications, particularly in large cross-sections if the alloy is quenched and tempered. Examples include aircraft parts, heavy-duty gears, high-strength bolts, and fasteners.

BS S99 Steel Bar Datasheet

Stock Availability

Smiths Advanced Metals stocks BS S99 steel bars in the hardened and tempered condition.

Product Features:

    BS S99
    BS S100

    Aircraft parts
    Heavy-duty gears
    High strength bolts

    High strength
    Good ductility
    High tensile strength
    Good creep resistance

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