Letter Re: A Useful Heated Steel Color Emission Chart
Dear James: I came across this table in a reference book and thought it may be useful to everyone. Note: This chart should not be used as a guide to combating fires. Remember all fires are dangerous, and you should call the fire department, if that is a possibility, when you see flames. All degrees are in Fahrenheit below. Yellow 450 degrees Fahrenheit Brown to Purple 550 degrees Fahrenheit Blue 600 degrees Fahrenheit Faint Red 900 degrees Fahrenheit Dark Cherry Red 1,100 degrees Fahrenheit Full Cherry Red 1,400 degrees Fahrenheit Salmon 1,600 degrees Fahrenheit Lemon 1,800 degrees Fahrenheit. White 2,200 …