Vyksa Steel Works (Vyksa, Russia):
V. V. Naumenko, Cand. Eng., Head of the Dept., e-mail: naumenko_vv@vsw.ru
E. S. Mursenkov, Chief Specialist
S. V. Kovtunov, Specialist

Bauman Moscow State Technical University (Moscow, Russia):

A. V. Muntin, Cand. Eng., Associate Prof.

The results of a study of the resistance to hydrogen induced cracking of pipes welded by high-frequency currents, made of structural steel containing 0.16-0.22 % carbon according to the NACE TM 0284 standard, produced in the conditions of “Vyksa Steel Works” are presented. It is found that in the presence of non-metallic inclusions of elongated (extended) morphology in the metal, cold deformation during the forming of rolled products into a pipe reduces the corrosion resistance in hydrogen sulfide-containing media, even with subsequent double heat treatment in the form of quenching from the austenitic region and high tempering. It is clearly shown in the laboratory and confirmed in industrial conditions, the combined effect on the formation of nonmetallic inclusions by modifying them in the production of steel and the formation of the structure by applying double heat treatment provides resistance against hydrogen induced cracking of pipes welded by high-frequency currents made of structural steel containing 0.16-0.22 % carbon.

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