pressure tank as mini autoclave

I have a pressure tank (50Liter) with removable top cover rate at 140psi, will I able to use it as a mini autoclave at around 100 psi of pressure?

Remember, heat will change specs on a tank. Seals also have to hold pressure under the heat. Granted, this has been done, but also a specially designed pressure vessel.
You also have to account for any bagging/tubing connections, safety valve releases, etc.

the pressure tank is rated at 150C and I am planning to heat up until 130, what do you guys think?

This might be of interest to you:

http://www.talkcomposites.com/FindPost4137.aspx

This might be of interest as well. http://www.compositescentral.com/showthread.php?t=4536&highlight=build+autoclave

We talked about it awhile back. not sure if it was ever completed?