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

4330M Steel Bar

Chromium-nickel-molybdenum heat treatable steel.


4330M has low carbon content making the alloy ideal for shock loading and stress concentrated applications.

4430M is a heat-treatable steel bar product with added vanadium for improved hardness.


4330M is a chromium-nickel-molybdenum heat-treatable steel modified by adding vanadium to improve hardenability. The alloy may be heat-treated to improve strength considerably. The alloy also offers attractive performance characteristics, including improved notch toughness, greater fatigue strength and good toughness. 4330M alloy also provides resistance to crack propagation and superior impact strength. The material is ideal for the most demanding aerospace engineering applications, including aircraft landing gear, aerostructures, bolts and shafts. The tensile strength after heat treatment is 220 to 240 ksi (1520-1650 N/mm²).


Suitability

4330M has low carbon content making the alloy ideal for shock loading and stress concentrated applications.



4330M Steel Bar Datasheet

Processing Options

We process your steel bars in-house at our bulk central warehouse in Biggleswade. The warehouse processes more than 2 million billets every year. We cut bars to closer tolerances, and with the size of our operation, we offer scale efficiencies which reduce purchase and processing costs for our customers.



Stock Availability

Smiths Advanced Metals stocks 4330M steel bars in the normalised and tempered condition. Our steel bars are stocked in closer incremental sizes, which often removes the need for extra machining.



Product Features:


    34CrNiMo6V
    AMS6411
    AMS6427
    ASTM A646
    BMS7-122 (Boeing)
    BMS7-27 (Boeing)
    MIL-S-8699
    UNS GK23080

    Aerostructures
    Landing gear
    Bolts
    Shafts

    Good weldability
    Very good impact properties at low temperatures
    Good toughness
    Increased hardness

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