ความทนทานต่อการกัดกร่อนของสแตนเลส
22 June 2017
Chemical density | % |
Temp (°C) |
Corrosion rate | Chemical density | % |
Temp (°C) |
Corrosion rate | |||
SUS304 | SUS316L | SUS304 | SUS316L | |||||||
Ammonia | 10 | 24 | A | A | Calcium chloride | 10 | 24 | A | A | |
30 | 24 | A | A | 50 | 24 | B | B | |||
10 | 80 | B | B | 10 | 100 | - | - | |||
30 | 80 | B | B | 50 | 100 | X | - | |||
Caustic soda | 10 | 24 | A | A | Ammonium chloride | 10 | 24 | C | A | |
50 | 24 | A | A | 40 | 24 | - | - | |||
10 | 100 | A | A | 10 | 100 | - | A | |||
50 | 100 | B | B | 40 | 100 | - | - | |||
Hydrochloric acid | 10 | 24 | X | X | Potassium carbonate | 5 | A | A | ||
30 | 24 | X | X | 20 | A | A | ||||
10 | 80 | - | - | Sodium chloride | 10 | 24 | B | B | ||
30 | 80 | - | - | 40 | 24 | B | B | |||
Carbonate of soda | 10 | 24 | A | A | 10 | 100 | B | B | ||
30 | 24 | - | - | 40 | 100 | B | B | |||
10 | 100 | A | A | Chromic acid | 5 | 24 | - | B | ||
30 | 100 | A | A | Hydrofluoride | 5 | 30 | X | X | ||
Acetic acid | 10 | 24 | A | A | Phosphoric acid | 10 | 24 | A | A | |
60 | 24 | A | A | 50 | 24 | A | A | |||
10 | 100 | A | A | 10 | 100 | A | A | |||
60 | 100 | B | B | 50 | 100 | B | B | |||
Oxalic acid | 10 | 24 | B | C | Aqua regia | HCL-HNO3 | 24 | X | X | |
50 | 24 | B | C | 3:1 | 100 | - | - | |||
10 | 100 | X | C | Cupric chloride | 10 | 24 | X | X | ||
50 | 100 | X | C | 30 | 24 | X | X | |||
Sulfuric acid | 10 | 24 | - | B | 10 | 100 | - | - | ||
50 | 24 | X | X | 30 | 100 | - | - | |||
10 | 100 | - | X | Phenol | 25 | A | A | |||
50 | 100 | - | X | Methyl alchol | 95 | 25 | A | A | ||
Nitric acid | 10 | 24 | A | A | Carbontetrachloride | 100 | B | B | ||
50 | 24 | A | A | Formaldehyde | 37 | A | A | |||
10 | 100 | A | A | Formic acid | 10 | 24 | B | B | ||
50 | 100 | B | B | 20 | 52 | - | - | |||
Hydrogen sulfide | 24 | C | B | 50 | 24 | B | B | |||
24 | B | A | 10 | 100 | - | X | ||||
Sulfur dioxide | 30 – 60 | - | - | 50 | 100 | X | X | |||
30 - 60 | - | - | Citric acid | 10 | 24 | B | A | |||
Sea water | - | 24 | - | A | 50 | 24 | B | A | ||
- | 100 | - | - | 10 | 100 | B | A | |||
Naphtha | - | 80 | A | A | 50 | 100 | X | A | ||
- | 100 | A | A | |||||||
Chlorine | 24 | - | B | |||||||
24 | - | X | A – Less 0.051mm/year | |||||||
100 | A | B | B – Less 0.508mm/year | |||||||
90 | B | X | C – Less 0.508-1.27mm/year | |||||||
Lactic acid | 10 | 24 | B | A | X – More than 1.27mm/year | |||||
50 | 24 | B | A | |||||||
10 | 100 | B | B | |||||||
50 | 100 | X | B | |||||||
Chloride zinc | 20 | X | X | |||||||
50 | X | X | ||||||||
Methylene chloride | 10 | 24 | C | B | ||||||
40 | 24 | B | B | |||||||
10 | 100 | C | - | |||||||
40 | 100 | - | - | |||||||
Iron (II) chloride | 30 | 25 | X | X | ||||||
X | X | |||||||||
Ferrous sulfate | 10 | 24 | B | B | ||||||
50 | 24 | B | B | |||||||
10 | 100 | - | B | |||||||
50 | 100 | - | - |