Flame Temperatures
Technical information: flames
Although the flame temperature of an LPG (propane or butane) air burner at the hottest point is approximately 1900oC, the actual temperature a heated component can attain is much lower than this and depends on the burner, and the thermal properties of the component and its surroundings.
Acetylene-air and MAP//Pro gas-air will give flame temperatures 200-300oC above this and component temperatures 200-300oC higher too.
The Autotorch brazing burners can give temperatures up to 950oC under general conditions and up to 1200oC in ideal conditions only. They can therefore bronze braze under most conditions as well as being able to make faster soft and silver soldered joints. They are particularly good for hard/silver soldering of copper pipes.
The Autotorch 2300 series burners, the Autotorch System 2 burners and the Standard torch burners can give temperatures up to 800oC under general conditions. They are, therefore, ideal for soft and silver soldering and lead welding, but cannot be used for bronze brazing.
The Autotorch acetylene burners can give temperatures up to 1100oC undergeneral conditions and 1350oC under ideal conditions and can be used to do bronze brazing as well as the other general uses of torches discussed above.
MAP//Pro gas used on the FirePower, AutoPerformer and Performer torches will generally achieve temperatures between the Autotorch brazing burners and the Autotorch acetylene burners.
