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Tool Talk Discussion Forum

Propane or Acetylene

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tummer

09-22-2003 03:49:44




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With the advice of several experienced people, I switched from Acetylene to propane for my torch a few years ago. I have found it to be a good move for several reasons. Less tank changes and cheaper. Also it seems to burn hotter and cuts better. All I had to do was change a few small parts. Anybody have any comments.




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Bob/Ont

09-22-2003 13:48:50




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 Re: Propane or Acetylene in reply to tummer, 09-22-2003 03:49:44  
Tummer, we switched at work a long time ago, I guess it's okay for burning plates and such for fabricating. I don't like it at all though because the main thing I would use a tourch for is taking out broken bolts. I compare using acetylene to drawing with a pencil and propane to drawing with a paint brush. When I use the torch to take out broken bolts any savings in gas is lost more than double in torch tips. Later Bob

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Rod MI

09-22-2003 10:41:56




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 Re: Propane or Acetylene in reply to tummer, 09-22-2003 03:49:44  
Tummer what torch set are you using?



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Jeff

09-22-2003 07:43:17




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 Re: Propane or Acetylene in reply to tummer, 09-22-2003 03:49:44  
Yes its cheaper, but it does not burn as hot, nor cut as well as acteylene.

I worked at a bone yard for awhile, and spent
alot of time cutting up cars, etc, and propane
is not as good. But on the flip side,
its a big cost savings to the ownership of the yard.



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Terry Clark

10-19-2003 20:37:11




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 Re: Re: Propane or Acetylene in reply to Jeff, 09-22-2003 07:43:17  
I agree with you Jeff, I used a set of torches at a boneyard once and they used propane my first experience and hopefully the last with the stuff,I hated it it didn't heat up near as well as acycetelene,but the yard may have had a junk set of torches you know how it is to have to loan tools in those places. just my opinion of what I used.



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tummer

09-22-2003 10:21:18




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 Re: Re: Propane or Acetylene in reply to Jeff, 09-22-2003 07:43:17  
Not to be disagreeable, but I found that it was better at cutting, maybe you were using the wrong orifices.



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Brian

09-22-2003 13:32:44




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 Re: Re: Re: Propane or Acetylene in reply to tummer, 09-22-2003 10:21:18  
Rarely is something cheaper & better, the large scale businesses that spend money on cutting metal would have switched by now if there were cost advantages without a performance tradeoff.



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Ben in KY

09-22-2003 18:38:51




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 Re: Re: Re: Re: Propane or Acetylene in reply to Brian, 09-22-2003 13:32:44  
Perhaps it could be a safety issue. propane is a lot safer to transport and use than Acetylene. I use propane for cutting and brazing. It is not quite as good as Acetylene, but ok. Propane uses a lot more OXYGEN than Acetylene, I use about 4-5 45 cu ft tanks of oxy to one 20lb tank of propane. Cost is overall a bit cheaper I suppose and the tips are not a problem if you keep an eye on them, they are also easier to clean, being 2 piece.

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Bob/Ont

09-22-2003 20:02:26




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 Re: Re: Re: Re: Re: Propane or Acetylene in reply to Ben in KY, 09-22-2003 18:38:51  
Where I destroy tips is blowing out broken bolts. When you drill a hole in them and start cutting them out acetylene blows down the hole better,cuts finer and is easier to control. The propane flame always blasts back at the tip more and I have a meltdown, I find it much harder to blow the bolt out without dammaging the threads too.
Later Bob



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T_Bone

09-22-2003 19:37:16




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 Re: Re: Re: Re: Re: Propane or Acetylene in reply to Ben in KY, 09-22-2003 18:38:51  
Hi tummer,

Well if your talking straight LP then I like Acetylene/Oxy much better. Finner cutting and small
weld beads vs LP. LP/Oxy is like Mapp/Oxy, slow to preheat and doesn't do well on fine work, like gold or silver welding.

They do however make Propynol, LP plus 92% methanol and 8% zylene that has a flame temperature that equals Acet/Oxy. I have never used the stuff my self but my SIL brother uses it to make steel storage containers in a production enviroment. Saves the company about 200% vs using Acet/Oyx.

Just all depends on the job requirment as too which works best. For farm shop use, LP would be much cheaper now as Acetylene now carry's a hazard waste fee where LP doesn't.

For no more than I use, about a cylinder every 5yrs or so, Acetylene/Oxy works best for me as I still gas weld alot.

T_Bone

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