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2. Oxy-fuel welding and cutting - Wikipedia

   en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

   The flame temperature is high, about 2,000 °C for hydrogen gas in air at atmospheric pressure, [11] and up to 2800 °C when pre-mixed in a 2:1 ratio with pure oxygen (oxyhydrogen). Hydrogen is not used for welding steels and other ferrous materials, because it causes hydrogen embrittlement .

3. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   Air acetylene welding (321) AAW Chemical welding process, not popular Limited Oxyacetylene welding: 311: OAW Combustion of acetylene with oxygen produces high-temperature flame, inexpensive equipment Maintenance, repair Oxygen/Propane welding 312: Gas welding with oxygen/propane flame Oxyhydrogen welding: 313: OHW

4. Blowtorch - Wikipedia

   en.wikipedia.org/wiki/Blowtorch

   The blowtorch is commonly used where a diffuse (wide spread) high temperature naked flame heat is required but not so hot as to cause combustion or welding. Temperature applications are soldering , brazing , softening paint for removal, melting roof tar , or pre-heating large castings before welding such as for repairing.

5. Gas burner - Wikipedia

   en.wikipedia.org/wiki/Gas_burner

   Hydrogen in air 2111 °C 3831 °F Propane with oxygen 2800 °C 5072 °F Acetylene in oxygen 3100 °C 5612 °F Propane-butane mix with air 1970 °C 3578 °F Coal in air (blast furnace) 1900 °C 3452 °F Cyanogen (C 2 N 2) in oxygen 4525 °C 8177 °F Dicyanoacetylene (C 4 N 2) in oxygen (highest flame temperature) 4982 °C 9000 °F

6. MAPP gas - Wikipedia

   en.wikipedia.org/wiki/MAPP_gas

   MAPP GAS With Torch Attachment by Starke HVACR However, for the small-scale user a MAPP/oxygen flame is still highly desirable, having higher flame temperatures and energy densities than any flame other than acetylene/oxygen, but without the dangers and inconveniences of acetylene/oxygen.

7. Acetylene - Wikipedia

   en.wikipedia.org/wiki/Acetylene

   Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. [50] One curious discovery of acetylene is on Enceladus, a moon of Saturn. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above ...