- Joined
- May 10, 2012
- Messages
- 995
I see a fair few aluminium tanks for sale on new compressors here in Oz.
Aluminum may be better for corrosion, but it has no lower fatigue limit like steel does, which is to say, every time the compressor cycles you are removing fatigue life from the tank. It will eventually fatigue out and fail, probably catastrophically. I suspect that they have taken that into account by ensuring that the life of the compressor is short enough not to get to that point, or they plan to be out of business before they start failing, either way there's no problem for the manufacturer.