Atmospheric Corrosion

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