Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Stepped Annealing of High Speed Steels. (SKH8 and SKE6)
Study on high speed tools-XIX
Hideji Hotta
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1959 Volume 45 Issue 11 Pages 1272-1275

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Abstract

Following the 18th. report (Tetsu-to-Hagane, Vol. 44, 1958, No. 11, p. 36), the rapid softening method by stepped annealing of high speed steels (SKH8 & SKH6) was studied by micrography and hardness test. The results obtained were summarized as follows:
The hardness of the quenched high speed steel that had been annealed from 880°C→800°C in air, oil-or water-cooling (the so called "stepped annealing method") was nearly equal to the hardness obtained by a full annealing furnace.

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© The Iron and Steel Institute of Japan
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