EFFECT OF Mn ON THE PROPERTIES OF Cr-Mo CASE-HARDENING STEEL

Kiichiro Shinji; Kingo Kiyonaga

doi:10.2355/tetsutohagane1955.43.6_642

Tetsu-to-Hagane

Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575

EFFECT OF Mn ON THE PROPERTIES OF Cr-Mo CASE-HARDENING STEEL

Kiichiro Shinji, Kingo Kiyonaga

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JOURNAL FREE ACCESS

1957 Volume 43 Issue 6 Pages 642-646

DOI https://doi.org/10.2355/tetsutohagane1955.43.6_642

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Abstract

Effects of Mn on various properties of Cr-Mn-Mo case-hardening steel added with Mn from 0.6 up to 2.3% were investigated. At low quenching temperature, addition of Mn effectively decreased the distortion ratio with sufficiently increased quenched hardness. Especially the specimens containing 1.6% Mn showed the superior result. Strength much increased in Cr-Mn-Mo case-hardening steel, though toughness was sacrificed to some extent. Addition of Mn improved abrasive properties, but when combined with SNC-3, the good results could not be obtained.

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