Temperature Color

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Color, Temperature

 

the color of the luminescence from a heated metal alloy, which is determined by the metal’s temperature. Some typical temperature colors for steel are dark brown (550°C), dark red (680°C), cherry red (770°C), bright red (900°C), yellow (1000°C), and white (1300°C). Temperature colors may vary slightly with illumination. Before the advent of pyrometers and suitable testing and measuring instruments, the temperature of heated metal was determined from the temperature color.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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The temperature color scale is the same for both parts.

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