My experience is that aluminum will draw heat off and dissipate it much
faster. Usually a plasma cutter will do about 60-75% in aluminum of what it
will do in steel.
Respectfully,
Ron Moore

"Grant Erwin" wrote in message
...
When the spec says a plasma cutter can cut 3/8", does that mean it can cut
3/8" in any conductive material? Aluminum? Stainless? Or does the rated
thickness vary with material the way it does for a punch or shear?

I have a 25A plasma cutter with which I cut 1/4" steel all the time, and I
want to try it on 1/4" aluminum ..

GWE