Abstract

Results of laboratory study of 3 types of steel, resistance to sulphide stress cracking and hydrogen induced cracking in H2S environments, are presented in this article. Those steels have been applied in the petroleum industry. Determining the threshold of safety for each type of steel (with regard to yield strength Re) below where stress cracking won’t occur was possible owing to these examinations. Hydrogen induced cracking test was applied to research steel resistance to cracking caused by hydrogen from sulphur aqueous environments. These tests permit determination of the threshold of safety of a given material to be admitted for use in hydrogen sulphide environments.

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