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Why is oxygen necessary in an oxyacetylene outfit for torch cutting

User MobileVet
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Answer:

The use of oxygen instead of air allows the oxy acetylene welder to hold a higher flame temperature than other methods of welding would allow. An oxy acetylene flame heats up to around 3,500 °C (6,330 °F). This form of welding can also be used for cutting metal as well.

User Mangusta
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