The Hot Spots
A torch flame has many parts, all with different temperatures. While different gases produce different flames, the hottest point of any flame is at the tip of the inner cone, where the pale flame meets the deeper-colored outer flame.
A torch flame has many parts, all with different temperatures. While different gases produce different flames, the hottest point of any flame is at the tip of the inner cone, where the pale flame meets the deeper-colored outer flame.
| HOW HOT IS HOT? | ||
| HOT | 200-400 degrees Fahrenheit | Softening paint and putty |
| 350-840 degrees Fahrenheit | Soldering: joining metals with a low-temperature metal filler | |
| HOTTER | 840-1,500 degrees Fahrenheit | Brazing: soldering with hard filler |
| 1,300-1,600 degrees Fahrenheit | Cutting steel | |
| HOTTEST | 1,250-2,800 degrees Fahrenheit | Welding: melting metals (typically aluminum, iron, or steel) together |
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