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When to specify stainless steel for component parts

Stainless steel is a material often specified for engineering projects due to its combination of strength and corrosion resistance. However, there are various grades of stainless steel to choose from – each with their own characteristic and costs – so it’s important to make the right choice for your application.

John Marshall, Technical Manager at WDS Components Parts Ltd., explains the advantages of stainless steel for standard and component parts.

It’s the chromium alloy which gives stainless steel its best known advantage – high resistance to corrosion. The chrome component not only creates the corrosion resistant chromium oxide protective layer, but also contributes to its hardness, making it highly robust and resistant to impact. However, its relative hardness makes it more difficult to machine than mild steel, which means careful selection over your supplier is required in order to ensure optimum product quality and accuracy.