I take a lot of calls regarding using Oxygen + Propane or Oxygen + Propylene instead of Acetylene + Oxygen.
Well the short answer to the Title question is, âYesâ and âNoâ.
Sorry its ambiguous, butÂ it all depends what you want to do! Â Let me explain!
Fuel Gas Options
Oxygen + Fuel Gas kits used to be simple, you had Oxygen + Acetylene! Â However, the waters are now muddied by a number of factors.
- Acetylene can be hard, and expensive, to obtain.
- Cylinder Rental for Acetylene Cylinders has shot up in price.
- Acetylene often rings alarm bells with Health & Safety conscious officials because of its combustibility and unstable nature!
Unfortunately, Oxy/Acetylene is still the best all purpose gas combo, but there are viable alternatives, as long as you know what you want to be able to do and you choose carefully.
Propane is the easiest fuel gas alternative to Acetylene to obtain and is normally supplied in cylinders on a Deposit basis, rather than rented (as is usually the case with Acetylene).
For most users, Propane works out cheaper, especially for infrequent users of Oxygen + Fuel kits. The only real downside to using Oxy/Propane is that it canât be used for actual Welding. Â Oxygen and Propane fuelled kits are however, ideal for Silver Solder, Brazing, Cutting and Heating.Â So as long as you donât want to Weld, Oxygen and Propane is a great way to go! Oxygen + Propane produces a flame temperature of around 1800â°C.
Propylene is a blend of gases, including Propane and available in a number of throwaway canister Brands, Gasex, Mapp & Turbo Gas to name but three, itâs also available in larger, refillable cylinders. Â An Oxygen/Propylene mix burns quite a bit hotter than Oxygen and Propane, typically around Â 3100â°C and could, therefore, be considered better as jobs will reach operating temperature quicker.
Unfortunately, like Propane, Propylene is not suitable for fusion welding.Â You will find people out there who will tell you it can be used to weld, but in tests that Iâve carried out, the welds it’s produced have been fairly brittle, so I certainly would be doing anything structural or that my Life depended on with it!!!
Oxygen + Propylene is however excellent for Silver Solder,Â Brazing & Heating.
Oxygen + Propane equipment should also be used for Oxygen + Propylene.
The Welders Warehouse offers a number of excellent Kits, please take a look at ourÂ Oxy Propane/Propylene KitsÂ Page to see the range!
Oxy Propane/Propylene Torch
Whilst a standard Oxy Acetylene Torch can be used for Oxy Propane/Propylene, it’s far from ideal. Â Propane & Propylene are slower burning gases.
Propane & Propylene also travel through the system as a vapour, not a gas, not actually turning into a gas until they meet air.
The Welders Warehouse has developed two special Multi-Jet Torches for Oxygen +Â Propane & Propylene.
Lightweight Oxy Propane/Propylene Torch
Heavy Duty Oxy Propane/Propylene Torch
Both use our own, specially designed Multi-Jet Nozzle, which is a lot easier to light and a less likely to blow out, compared to an Oxy/Acetylene Nozzle.
With the right equipment, Propane or Propylene, when mixed with Oxygen, are a viable alternative to Oxy Acetylene for most applications, except fusion welding.
Hope you found this article useful.
Please let me know what you thought of this article by leaving a comment. Â Don’t worry, your email address won’t be added to a database or shared and you won’t receive any unsolicited email.
Technical Advisor –Â The Welders Warehouse Ltd
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