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MACHINISTS GUIDES

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TEMPERATURE COLOR CHART OF METAL BEING HEATED

Heated metal radiates or gives off energy. The hotter the metal, the more energy it gives off. Much of this radiated energy is in the form of light.

APPROXIMATE HIGH TEMPERATURE/COLOR CHART

Faint Red  9500 - 10500F
Dark Red 11500 - 12500F
Dark Cherry 11750 -12750F
Cherry Red 13000 - 14000F
Bright Cherry 14750 - 15750F
Dark Orange 16500 - 17500F
Orange 17500 - 18500F
Yellow 18000 - 19000F
Yellow/White OVER 20000F


APPROXIMATE TEMPER COLORS

Pale Yellow 3500F
Straw Yellow 4000F
Red 5000F
Violet 5500F
Dark Blue 6000F
Light Blue 6500F
Blue/Gray 7000F
Gray 7500F

TO BUY BY CHECK

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Copyright 2001 METALWORKING BOOKS
Last modified: November 29, 2001