Methanol and aluminum
Methanol and aluminum
(OP)
I am aware that Methanol in certain concentrations will corrode aluminum. What I was not aware of is that aluminum alloy 3003 is preferentially corroded as compared to alloys 6061, 6063 and 5052. Can someone explain why?
Thanks!!
Thanks!!





RE: Methanol and aluminum
RE: Methanol and aluminum
If your aluminum is in contact with SS then you have galvanic corrosion occuring. i do not have a specific experience base to address this but the web has an abundance of information:
For example,
http://www.saf-airliquide.com/chapter03/en/alusite/apport2.htm
shows the compositions:
3000-Aluminum + Manganese (up to 1%)
5000-Aluminum + Manganese (up to 5%)
3000-Aluminum + Manganese + Silicon (up to 1% of each)
Or coated aluminum and corrosion photos:
http://www2.umist.ac.uk/corrosion/JCSE/Volume2/Paper36/v2p36.html
http://www.orioninstruments.com/html/coorsion_resistance.asp
I placed Methanol, Aluminum 3003, and "A" corrosion rate of <0.05mm/year is good for 90F (the sun alone could heat it hight than that depending on your environment)
good luck.
RE: Methanol and aluminum
RE: Methanol and aluminum