A liquefied petroleum gas that provides good performance in welding and cutting applications that require overall heat content at an economical cost.
Propane does not possess the double and triple bonds found in acetylene and propylene (FLAMAL 29) so does not develop their high flame temperatures or concentrated heat, but its secondary flame produces a high Btu output.
Low pressure welded steel cylinders are used for propane.
Propane is supplied in liquid form under a vapour pressure of 827 kPa (120 psig) at 21°C. Like FLAMAL29, withdrawal rate and vapour pressure vary with temperature.