- Main Office:
+44(0)1767 604555 - 24/7 AOG Support:
+44(0)7710 107987
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.
440 stainless steel represents a series of stainless steel aloys which contain chromium and nickel.
440C is the most popular product available due to the material's overall hardness (a Rockwell Collins hardness of 58). AMS 5630 represents the most common material specification, and we supply the product in the annealed condition, also known as 'condition A'. After heat-treatment, this martensitic stainless steel achieves the highest strength and wear resistance of all stainless steel alloys. When compared to popular austenitic grade materials, the corrosion resistance of the alloy is somewhat reduced.
The strength and hardenability of the alloy results in a material which finds suitability in a broad range of commercial aerospace applications. Such applications include aircraft parts, bearing assemblies, needle and ball check valves and valve seats.
Smiths MRO stocks 440 series stainless steel bars in sizes from 0.5" (6.35mm) diameter up to 4" (101.6mm) diameter, with many sizes available in between. We supply this material to AMS 5630.
As a dedicated engineering materials support company for the global MRO sector, we offer a rapid turnaround on products with stocked materials often dispatched on the same day of purchase. We offer this service irrespective of your International location.
AMS 5630
Bearing assemblies
Valve seats
Aircraft Parts
Needle and ball check valves
Excellent hardenability
Excellent strength
Easily machined in the annealed condition
High wear resistance
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