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.
We stock 4330 (AMS 6411) premium aircraft steel bars - an engineering alloy steel modified with the inclusion of vanadium.
The reduced carbon content of the alloy (when compared to 4340 steel) makes the product particularly useful in applications where fatigue loading and stress concentration are a consideration. Other beneficial features include improved notch toughness and resistance to crack propagation. Typical applications include bolts, shafts, undercarriage components and airframes.
4330 steel is manufactured according to AMS 6411 by vacuum arc remelting (VAR) method and can undergo a secondary melt via ESR (Electro Slag Remelt) if specified by the customer.
We stock 4330 aerospace-grade steel bars to support the aircraft MRO sector. We stock our products in closer incremental sizes, which means you will receive materials closer to your finished size requirements. We also supply bars to standard or cut lengths.
Our dedicated export team a fully qualified to handle the shipping of your goods, with rapid despatch times to locations on a global basis. Often, we are able to arrange shipping of stocked materials on the same day.
Excellent fatigue strength
Improved notch toughness
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