cannot cut stainless steel and aluminum.
Oxy-fuel is used on ferrous* metals at thicknesses less than 4
in. with a handheld torch. Oxy-fuel efficiently cuts even the
thickest metals in half the time of plasma. *(iron-containing).
cutting yields higher quality cuts than oxy-fuel
cutting. The high velocity gas heats metal, melts the unwanted
area and separates it from the metal by the force of the moving
gas. Plasma cutting is used on non-ferrous metals not greater
than 2 inches in thickness.
*(an ionized gas that conducts electricity).