Abstract
A process of hardening of steel 16Kh3NVFMB-Sh involving vacuum carburizing and subsequent hardening heat treatment is studied. It is shown that in order to obtain an optimum phase composition and, as a consequence, high operating properties, the steel should be subjected after carburizing to high tempering for formation of a fine ferrite-carbide structure. The treatment should be finished with quenching after the second heating, cold treatment and low tempering.
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