I would make the jump directly to propane. The proprietry mixtures are
appropriate for naval codes or underground mines. You cannot weld with
these gases with any quality so you are restricted to heating and flame
cutting which propane will do anyway.
The big plus is safety. Acetylene has a 2.5 to 82 percent flammable
range. Propane is 2.1 to 9.5 and propylene is 2.4 to 11.1
Why pay a welding gas supplier top dollar when you can use a common and
cheap fuel.???
Randy

"Gunner" wrote in message
...
Id like to know the differences in using these two fuels for normal
around the farm cutting and brazing.

I understand that propylene is safer, has more in the tank, is
cheaper..and thats all I know.

Ive got an old S/V 100 torch handle and various cutting heads and
brazing tips, as well as an old Union Carbide cutting torch.

I have to change the cutting tips, correct? What about the existing
brazing tips?

How much does a tank of propylene cost versus acetylene?

Is there an issue with my hoses?

Regulators? Can a acetylene regulator be used for propylene?


In the past, an acetylene tank has lasted me a couple years, but Ive
sorta gotten the welding bug and Im doing all sorts of projects now.

Ive got tig/stick welders to weld with, but will be doing some brazing
and silversoldering (band saw blades, brazing cast iron..the usual)

Any good links to any good information or some hints and tips?

Tanks G

Gunner



"If I'm going to reach out to the the Democrats then I need a third
hand.There's no way I'm letting go of my wallet or my gun while they're
around."

"Democrat. In the dictionary it's right after demobilize and right
before demode` (out of fashion).
-Buddy Jordan 2001