Glow temperatures for smelting of different metals

Here is a quick list of melting temperatures and heat sources.
 (for the refining of common metals and at what temps they glow)
The comparative heat sources have been marked with a red background.

• 232℃ (450℉), Tin, no visible glow.
• 328℃ (622℉), Lead, no visible glow.
• 482℃ (900℉), Self Cleaning Oven.
• 661℃ (1222℉), Aluminium, slight red glow.
• 896℃ (1644℉), Large log fire.
• 1000℃ (1832℉), Magma.
• 1065℃ (1949℉), Gold, cherry red glow.
• 1085℃ (1985℉), Copper, cherry red glow.
• 1434℃ (2613℉), Carbon Steel, orange glow.
• 1510℃ (2750℉), Stainless Steel, orange glow.
• 1538℃ (2800℉), Iron, bright orange glow.
• 1596℃ (2906℉), Bunsen burner flame.
• 1668℃ (3034℉), Titanium, very bright orange glow.
• 1980℃ (3596℉), Wood fire with blowing air.
• 1995℃ (3623℉), Propane Torch.
• 2820℃ (5110℉), Propane Torch with Oxygen.
• 2925℃ (5300℉), MAPP Torch with Oxygen.

Sources: mostly Wikipedia. If you find any misinformation please let me know.