Re: Pros and Cons on oxy/acetylene setup using pro

Posted by 135 Fan on May 07, 2007 at 17:54:27 from (68.149.46.121):

In Reply to: Pros and Cons on oxy/acetylene setup using propane posted by unioncreek on May 07, 2007 at 06:47:26:

I didn't read the comparison in the archives but I have used both and also Mapp gas. Some large shops use natural gas on cutting machines. As far as oxygen cutting pressure goes, it should be the same when using the proper size of tip for the steel thickness. Getting a neutral flame might take a little more oxygen when using propane. I'm not sure. I have heard that different makes of torches can use different amounts of gases. As far as cutting performance goes, Acetylene is the fastest and easiest. It has a narrower kerf and you can see your line a little easier because you have usually 6 distinct flames rather than 1 big multiple flame. Propane needs special 2 piece tips for cutting that are more expensive and can be a real pain to keep clean. Propane is good for a big heating tip as propane has more btu's than acetylene and can be withdrawn at a faster rate. However only acetylene can be used for welding as it has a much hotter flame than propane. I've worked in some pretty cheap shops that still used acetylene. I prefer acetylene and unless you're doing lots and lots of cutting or heating, I think you'ld find acetylene goes a long way. Propane sometimes needs the oxygen turned on a little when lighting. Generally you will go through 2 or 3 oxygen cylinders for every acetylene cylinder. I guess it depends on what kind of cutting you're doing and if you would ever need to weld. Generally acetylene cuts need less clean up. Dave

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