Stainless Steel Alloys

Stainless steels owe their ability to resist corrosion primarily to the presence of a passive film on their surface.  Chromium is chiefly responsible for formation of the passive film.  Iron ceases to rust at approximately 12% chromium content and resistance to oxidizing corrosives increases rapidly with chromium content up to approximately 20%.  Beyond that level, resistance is increased at a more gradual and declining rate.  Consequently, few stainless alloys contain more than 27% chromium.

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Austenitics are by far the most widely used of all types of stainless steel.

Alloy additions for resistance to pitting, crevice corrosion, stress corrosion cracking.

Often in offshore and marine applications due to resistance to stress corrosion cracking.

Superior hardness combined with the corrosion resistance of an austenitic stainless steel.

Family of general high strength corrosion resistant ferrous alloys.