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Stainless Products Technical Data [chemical resistance]

chemical resistance of stainless steel

Martensite Series Ferrite Series Austenite Series Chemicals ConcentRation % 410 420 440A 430 446 302 303 304 316 317 309S 310S Sulfuric Acid 0.25 C C C C C A30 B50 A50 BBoil A30 B50 0.25 - 5 C C C C C B30 B50 B30 5 - 10 C C C C C C B30 C 10 - 75 C C C C C C C C 75 - 95 C C C C C B30 B50 B30 95 - 100 C C C C C A30 B80 same as on the left same as on the left >100 C C C C C A60 B200 same as on the left same as on the left nitric acid 0.5 A30 BBoil same as on the left B50 ABoil same as on the left same as on the left same as on the left same as on the left 0.5 - 20 A30 B70 B70 B50 ABoil same as on the left same as on the left same as on the left same as on the left 20 - 40 B30 same as on the left C A70 ABoil same as on the left same as on the left same as on the left 40 - 70 B30 same as on the left C A60 B90 A80 same as on the left same as on the left ABoil 70 - 95 C C C A30 B50 A50 B70 same as on the left same as on the left same as on the left >95 C C C B30 same as on the left same as on the left same as on the left B50 Hydrochloric Acid and Chloride Salt 5 C C C C C C B30 C >5 C C C C C C C C hydrofluoric acid   C C C C C C C C Phosphoric Acid 5 C C C C C A30 ABoil A30 B60 5 - 25 C C C C C B30 (5 - 10%) ABoil B60 25 - 50 C C C C C C A95 BBoil 30 50 - 85 C C C C C C A30 B120 C >85 C C C C C C C C Acetic Acid and Acetic Anhydride 10 B30 BBoil same as on the left same as on the left same as on the left ABoil same as on the left same as on the left 10 - 50 C B30 same as on the left BBoil same as on the left A80 BBoil ABoil same as on the left 50 - 80 C B30 same as on the left B80 same as on the left A80 BBoil ABoil A80 BBoil 80 - 99 C BBoil same as on the left B80 same as on the left A80 BBoil ABoil A80 BBoil acetic anhydride BBoil same as on the left same as on the left same as on the left same as on the left same as on the left ABoil BBoil calcined soda 10 same as on the left same as on the left same as on the left same as on the left same as on the left ABoil same as on the left same as on the left 10 - 50 B30 same as on the left same as on the left same as on the left same as on the left A100 BBoil same as on the left same as on the left 50 - 70 C C C C C A100 B150 same as on the left same as on the left 70 - absolute (260) C C C C C B B B Otheralkaline Hydroxide lithium hydroxidecalcined potashbarium hydroxide similar to calcined soda magnesium hydroxidecalcium hydroxide same as all metal types A class for all ranges Alkaline Prussiate and Sulfide sodium cyanidekalium cyanidecyanide liquid solution for coating sodium sulfidepotassium sulfide same as calcined soda Ammonia absolute A A A A A A A A Ammonium Hydroxideand Humidity and Moisture BBoil same as on the left same as on the left same as on the left same as on the left ABoil same as on the left same as on the left

(Note) corrosion resistance standard

Division Corrode Allowance Content A   0.1128g/m2/hr and below Can be used for vital place where change in dimension is valued B   0.112 - 1.12g/m2/hr Can be used for place where change in dimension is not important C   1.12g/m2/hr and above Not suited for corrode material

(from Science handbook)

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