MOB1
Materials
- Feb 11, 2003
- 69
Does anyone have references which detail the problems of austenitic stainless steels and fluorine compounds?
I have an aluminum smelter client who was attempting to change from carbon steel to austenitic stainless for a gas scrubber from the anode bake ovens. The gas contains all sorts of nasties like HF (and other fluoride compounds), SO2, NOx, CO2 and is at a temperature of minimum 150C.
My immediate thoughts were internal Stress corrosion cracking and general corrosion with the possibility of external stress corrosion cracking under insulation.
I have to prove that the combination of flouride compounds would probably cause stress coorrosion cracking internally.
By the way, the original carbon steel scrubber was 25 years old.
I have an aluminum smelter client who was attempting to change from carbon steel to austenitic stainless for a gas scrubber from the anode bake ovens. The gas contains all sorts of nasties like HF (and other fluoride compounds), SO2, NOx, CO2 and is at a temperature of minimum 150C.
My immediate thoughts were internal Stress corrosion cracking and general corrosion with the possibility of external stress corrosion cracking under insulation.
I have to prove that the combination of flouride compounds would probably cause stress coorrosion cracking internally.
By the way, the original carbon steel scrubber was 25 years old.
