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ASM Handbook

Heat Treating of Irons and Steels

Edited by
Jon L. Dossett
Jon L. Dossett
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George E. Totten
George E. Totten
Portland State University
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ASM International
ISBN electronic:
Publication date:
Book Chapter

Temper Colors for Steels

Page range:
550 - 551
Publication history
October 30, 2014


Steel, heated in contact with air at temperatures in the tempering range, takes on various temper colors due to the formation of a thin oxide film. This article provides detailed information on temper colors for plain carbon steel, especially on the effects of time and temperature.

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2014. "Temper Colors for Steels", Heat Treating of Irons and Steels, Jon L. Dossett, George E. Totten

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