|
 |
Technical Information
Refractory Metals Corrosion Resistance Guide |
|
|
|
|
|
|
|
|
|
|
|
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
Acetic acid, 50%, boiling |
1 |
1 |
1 |
1 |
1,2 |
1 |
1 |
1 |
1 |
Aluminum chloride, 5% |
1 |
1 |
1 |
1 |
1,2 |
3 |
1 |
1 |
4 |
Ammonium chloride, 50% |
1 |
1 |
1 |
4 |
1,2 |
1# |
1 |
4 |
1 |
Ammonium sulfate, saturated, boiling |
1 |
4 |
2 |
1 |
1,2 |
1# |
1 |
4 |
4 |
Bromine, dry |
1 |
4 |
2 |
1 |
1,2 |
1# |
1 |
4 |
4 |
Bromine, water |
1, 2 |
1 |
1 |
3 |
3 |
3 |
1 |
4 |
4 |
Caustic soda |
1 |
3 |
1 |
1 |
1 |
1 |
3 |
4 |
4 |
Chlorine gas, dry, 25°C |
1 |
1 |
1 |
1 |
1 |
3 |
1 |
3 |
2 |
Chlorine gas, moist, 25°C |
3 |
1 |
1 |
3 |
4 |
3 |
1 |
1 |
3 |
Chlorine gas, moist, 100°C |
3 |
1 |
3 |
3 |
3 |
3 |
1 |
1 |
3 |
Chlorosulfonic acid, 10%
|
3 |
4 |
1 |
1 |
1,2 |
3 |
1 |
4 |
4 |
Chromium-plating bath |
1, 2 |
4 |
4 |
4 |
3 |
1,2 |
1 |
4 |
4 |
Ferric chloride, 5% agitated |
3 |
1 |
1 |
3 |
4 |
3 |
1 |
1 |
3 |
Flue gas |
1, 2 |
4 |
1 |
2 |
4 |
1,2 |
1 |
4 |
4 |
Flourine |
2, 3 |
3 |
4 |
4 |
1 |
3 |
3 |
4 |
4 |
Hydrochloric acid, 38°C
(all concentrations) |
3 |
2 |
1 |
1 |
4 |
3 |
1 |
3 |
1 |
Hydrogen peroxide, 25°C |
1 |
2 |
1 |
2 |
1,2 |
1* |
1 |
1 |
1 |
Lead, molten |
4 |
4 |
1 |
1 |
3 |
3 |
1 |
4 |
4 |
Mine water, acid |
1 |
4 |
1 |
1 |
3 |
1# |
1 |
4 |
4 |
Nitric acid, 5%, 25°C |
1 |
1 |
1 |
3 |
3 |
1 |
1 |
1 |
1 |
Nitric acid, conc., boiling |
1 |
1 |
3 |
3 |
4 |
2 |
1 |
1 |
1 |
Potassium cyanide |
1 |
4 |
1 |
1 |
1,2 |
1 |
1 |
4 |
4 |
Sodium chloride, sat., boiling |
1 |
4 |
1 |
1 |
1 |
1# |
1 |
1 |
4 |
Sodium hypochlorite, 5%, 25°C |
2 |
3 |
1 |
3 |
3 |
1# |
4 |
2 |
2 |
Sulfur dioxide, moist 25°C |
1 |
1 |
1 |
3 |
3 |
1 |
1 |
1 |
4 |
Sulfuric acid, 5%, 25°C |
1 |
1 |
1 |
1 |
1,2 |
2 |
1 |
2 |
1 |
Sulfuric acid, 50%, boiling |
2, 3 |
3 |
3 |
1 |
3 |
3 |
1 |
3 |
1 |
# Subject to pitting at air line or when allowed to dry
* Attack may occur when sulfuric acid is also present
1: Fully resistant
2: Some attack
3: Unsatisfactory
4: No data available
|
|
|
|
|
|