Properly set up, all fuel gasses will do a very good job. Most people that do welding for a living and want to do the best quality work, the fastest, choose acetylene. Most welding trucks use acetylene as well. Although it can be used for welding, very little O/A welding is ever done. Owner/operators of welding trucks need to watch their expenses, especially concerning gasses, more than anyone and most still choose acetylene. I've worked in some really cheap shops that still used acetylene. I don't think there is as much of a savings as people think using propane. For cutting you never really need more than 5 PSI of acetylene. With propane you need a higher pressure which uses more fuel gas as well as oxygen. An acetylene cylinder typically lasts as long as 3 larger oxygen cylinders. Most shops are more concerned with the price of oxygen as they go through it a lot faster than acetylene. Propane uses more oxygen which diminshes savings even more. With a standard cutting torch, it would be extremely rare to withdraw acetone from the acetylene cylinder. For a lot of people propane is just more convenient and easier to get filled. People who use a torch a lot will have an extra cylinder available. Welding supplies will often loan or rent an extra cylinder for a short period, if you have a bigger job. When used properly acetylene is pretty safe. You rarely hear of accidents. Propane can be just as dangerous. If you get blown up, it doesn't make any difference what gas it was. Keep your equipment in good repair and you shouldn't have any problems if you follow proper operating procedures. Dave
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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