AISI 316 (SUS 316) Grade Stainless Steel
Stainless steel types 1.4401 is known as grades 316 respectively. Grade 316 is an austenitic grade second only to 304 in commercial importance. 316 stainless steel contains an addition of molybdenum that gives it improved corrosion resistance. This is particularly apparent for pitting and crevice corrosion in chloride environments.
Chemical and physical properties
Grade 316 has excellent corrosion resistance when exposed to a range of corrosive environments and media. It is usually regarded as “marine grade” stainless steel but is not resistant to warm sea water. Warm chloride environments can cause pitting and crevice corrosion. Grade 316 is also subject to stress corrosion cracking above around 60°C. 316 has good resistance to oxidation in intermittent service to 870°C and in continuous service to 925°C. However, continuous use at 425-860°C is not recommended if corrosion resistance in water is required.
Chemical resistance chart
» Meaning of symbol:
OK: Recommended. △: Must confirm if usable by testing in advanced. X: Not recommended.
» This chart only provides the result of a single chemical to material, if a client uses more than one kind of chemical at the same time, please choose material by experience.
» This chart is for reference only which is not applicable to all working environments. Please refer to design equipment according to practical experience.
| Category |
Name |
AISI316 |
Organic acids
|
Acetic acid |
OK |
| Acetic acid, glacial |
N/A |
| Acetic anhydride |
OK |
| Citric acid |
N/A |
| Organic compound |
Acetaldehyde |
OK |
| Acetone |
OK |
| Methyl alcohol |
OK |
| Aniline |
OK |
| Benzaldehyde |
OK |
| Benzene |
N/A |
| Benzyl alcohol |
N/A |
| Benzyl chloride |
N/A |
| Corn oil |
N/A |
| Ethanol |
OK |
| Ethylene glycol |
OK |
| Fatty acid |
N/A |
| Formaldehyde |
OK |
| Formic acid |
OK |
| Hexane |
N/A |
| Lactic acid |
OK |
| Methanol |
OK |
| Paraffin oil |
N/A |
| Petroleum |
N/A |
| Phenol |
OK |
| Propane, liq |
OK |
| Propanol |
OK |
| Stearic acid |
N/A |
| Tannic acid |
N/A |
| Tartaric acid |
N/A |
| Toluene |
OK |
| Urea |
N/A |
| Inorganic compound |
Ammonia |
OK |
| Ammonium chloride |
N/A |
| Ammonium hydroxide |
N/A |
| Ammonium nitrate |
N/A |
| Ammonium sulfate |
N/A |
| Aqua regia |
N/A |
| Barium chloride |
OK |
| Barium hydroxide |
OK |
| Brine |
N/A |
| Calcium Chloride |
OK |
| Calcium hydroxide |
N/A |
| Carbonic acid |
N/A |
| Chloric acid |
N/A |
| Chlorine |
OK (wet) |
| Detergent |
OK |
| Hydrobromic acid |
△ (50%) |
| Hydrochloric acid |
N/A |
| Hydrofluoric acid |
N/A |
| Hydrogen peroxide |
OK (30%) |
| Nitric acid |
OK (10%)
OK (concentrated) |
| Phosphoric acid |
OK (10%)
OK (concentrated) |
| Potassium hydroxide |
OK (50%) |
| Potassium nitrate |
OK |
| Potassium sulfate |
OK |
| Sodium carbonate |
OK |
| Sodium hydroxide |
OK |
| 硝酸鈉 |
| Sulfuric acid |
OK (concentrated) |
| Sulfur dioxide |
OK (liquid) |