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