Heat Treat Colors Of Steel Chart

August 18, 2015

Our Temper Colors for Steel Chart Post remains very popular. So here is a chart of Heat Treat Colors for Steel.

Heat treat colors for steel Fahrenheit and Celsius temperatures

Heat treat colors for steel by Temperature

 

These days pyrometers are affordable. But it is the mark of a craftsman to be able to tell temperature by eye, if only to validate the instrumentation (or suspect it!)

These colors were obtained from a 0.40 wt. % carbon, alloy steel, as seen through a furnace peep hole during average daylight conditions.

Temper Colors for Steel Chart

Art of the Craft

Knowledge Retention

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