4330M Steel Bars

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.

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, often removing the need for extra machining.