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Acetylene or propane

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scott

05-22-2003 04:29:15

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can anyone tell me what the differences are between using acetylene or propane with oxygen. I am new with cutting torhces and I am set up for acetylene. What would I have to change to use the propane.?

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Larry

05-25-2003 19:56:32

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

I've been using propane for years and find it quite sufficient, all you really have to do is purchase propane burning and welding tips or dril your own down about 1/16".

Good luck

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Taylor Lambert

05-22-2003 21:57:51

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

I work part time for my freinds Trailer repair and we build a few log trailers. I hate in the bright light trying to adjust one at first, or lighting it on windy days outside. Its cooler burning to. When we have to heat 5/8 plate to make lowboy goosnecks he screws on acetylene and changes to the rosebud. I like them when removing 5th wheel plates on logtrailer often double plated. In my shop i se acetylene, on my Linde pattern burner the Oxy Acetylene setup can Burn 10 inch thick plate. To each his own i guess.

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mpj

05-22-2003 18:50:17

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

Propane hoses are also different than acetylene. Where I work we cut 20 tons of plate a week ranging from 1/2" to 10" thick using natural gas. Yes propane is slower but how many hours a day are you going to use it. Try getting acetylene on a holiday or a sunday.

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About 1000 Degrees

05-22-2003 18:39:40

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

Or more..... ..Stick with the acetyleyne.

Propane and LOX are for scrap yard cutting yahoos trying to save a buck chopping up material that don't matter anymore.

If you want good work results, you gotta use good tools.

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tyler

07-29-2003 18:36:35

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Re: Re: acetylene or propane in reply to About 1000 Degrees, 05-22-2003 18:39:40

acetylene burns MUCH HOTTER than lp

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05-22-2003 20:11:44

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Re: Re: acetylene or propane in reply to About 1000 Degrees, 05-22-2003 18:39:40

Scrap yards use propane because it cuts better for less money. The biggest caution about propane is if you don't know what you are doing don't use it in a building. Also, you don't have a $5.51 per month rental on a propane tank. With the CORRECT lp tip you can cut just as neat as with acetylene and often thicker iron.

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clyde

05-22-2003 19:41:31

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Re: Re: acetylene or propane in reply to About 1000 Degrees, 05-22-2003 18:39:40

OH,COME ON !!!!! !!

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Maybe I Should of

05-22-2003 20:04:35

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Re: Re: Re: acetylene or propane in reply to clyde, 05-22-2003 19:41:31

Said forget the acetylene, propane, map gas and natural gas all together and get you a Plasma cutter.

You'd never regret it. I RARELY strike a fire to the gas torch anymore. Plasma is neater than pockets on a pool table. It ain't just for the shop anymore either. I carry a suitcase sized inverter based Plasma unit on my portable rig, that will cut 3/4" steel, and use it all the time. Some of the best money I ever spent.

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David

05-22-2003 14:29:35

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

Propane is a lot safer stuff to handle than acetylene but main disadvantage is that propane uses more oxygen than the acteylene mix. And as others have said is not hot enough to weld with. propane is probably cheaper and easier to buy too. I have cut with propane but not with acet so can't say how they actually compare in use.

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TimC

05-22-2003 11:04:42

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

My dad converted to propane about 20 years ago. There is no way he would go back to acy now unless it was free and delivered.

If you have a concern about propane not being hot enough (you can cut thru 1 inch steel) you can always use map gas. A friend mis-understood my day and purchased map gas and it is plenty hot and last a long time like propane.

You just need the correct tip.

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Ben in KY

05-23-2003 05:38:17

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Re: Re: acetylene or propane in reply to TimC, 05-22-2003 11:04:42

Yes MAPP is good, Hotter than propane, but a LOT safer than straight acetylene.

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JD-Tractor

05-22-2003 08:21:02

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

You don't want a propane torch !!!I havn't yet figured why someone would even think about a propane cutting torch or even a natural gas torch.way too slow only advantage would be availability if not having a Acetylene dealer within 30 miles.!!!

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Ben in KY

05-22-2003 08:57:00

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Re: Re: acetylene or propane in reply to JD-Tractor, 05-22-2003 08:21:02

I use propane and it cuts fine. I just use one size bigger tip than with acetylene, and the slower warmup is not very noticable. I had an oxy clyinder but no Acetylene cylinder. Acy cly=150.00 propane=22.00 + propane is lots safer to handle/transport. I burn more OXY but the overall cost seems a bit cheaper. I burn about 4 44 cuft ( i think) of oxy to 1 20 lb can of propane. Many junkyards and scrap iron places use propane to cut with.

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Ben in KY

05-22-2003 05:18:01

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Re: acetylene or propane in reply to scott, 05-22-2003 04:29:15

You will require a new tip for your torch. The regulator will probably fit up to a propane tank ok.
Propane requires more preheat time before starting cutting and will use quite a bit more oxygen than when used with acetylene. Also you cannot weld with propane, You can braze with it although you will need a size larger tip than with acetylene.
Hope this helped.

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