Appendix 5: Temper Colors for Steels
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 appendix provides information on the cause and source of oxidation of steel and time-temperature effect on SAE 1035 steel. In addition, figures that show temper colors after heating 1035 steel in circulating air are presented.
Temper Colors for Steels, Failure Analysis of Heat Treated Steel Components, Edited By Lauralice de C.F. Canale, Rafael A. Mesquita, George E. Totten, ASM International, 2008, p 539–540, https://doi.org/10.31399/asm.tb.fahtsc.t51130539
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