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400 Series

stainlessContaining somewhere between 11 and 30 percent chromium, 400 grade stainless steel is low in carbon, usually magnetic, and somewhat less corrosion resistant than 300 series stainless. Often specified by engineers for use in caustic, high temperature environments, series 400 stainless can be easily heat-treated, welded and fabricated using conventional methods.

The food processing and textile industries specify 400 grade stainless for its ductility and ability to withstand corrosion. 400 grade stainless parts can also be processed to produce a shiny, aesthetically pleasing appearance, which makes the alloy an ideal choice for engineers designing trim and other visible automotive components. A versatile alloy, various 400 stainless steel alloys are also used to make surgical instruments, wear plates and components for steam turbines.