Stainless Steels - Atmospheric Corrosion Resistance

Atmospheric Corrosion Resistance of Stainless Steels
Alloy Finish % Stained Area % Rusted Pit Density (A-537)
201 CR 15 1 7
301 CR 20 3 8
302 CR 5 3 8
304 CR 3 0 8
304L 2B 15 3 9
316 CR 2 0 9
316L 2B 1 0 10
321 2B 10 5 8
347 2B 15 5 8
410 no. 2 100 80 1
430 CR 100 20 8

Reference: Baker, E.A. and Lee, T.S. "Long Term Atmospheric Corrosion Behaviour of Various Grades of Stainless Steels". ASTM Symposium on Degradation of materials in the Atmosphere. Philadelphia, PA. May 12-13, 1986

 

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