Vyksa Steel Works (Vyksa, Russia):

V. V. Naumenko, Cand. Eng., Head of the Dept., e-mail: naumenko_vv@vsw.ru
O. A. Baranova, Research Engineer
K. S. Smetanin, Chief Specialist

Bauman Moscow State Technical University (Moscow, Russia):
A. V. Muntin, Cand. Eng., Associate Prof.

The results of the study in laboratory conditions of the influence of heat treatment (HT) mode on the structure formation, change in the mechanical and corrosion properties in the H2S environment of structural steel produced in the casting and rolling complex of the JSC Vyksa Metallurgical Plant are presented. It was shown that after quenching at 900 °C and tempering at 650 °C, the metal structure is formed that provides not only high and stable values of impact strength up to test temperatures of –50 °C on Charpy samples with a sharp stress concentrator and mechanical properties characteristic of strength K52 – K56 class, but at the same time resistance to hydrogen induced cracking in the H₂S medium.

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