Guidelines for acceptable limits of H2S concentration in gas service are for the most part established and based on low pressure laboratory data. The sulfide stress cracking susceptibilities of a number of high strength, low alloy steels and two 13 Cr alloys were determined in high-pressure brine environments containing H2S at concentrations from 10 to 100 ppm. Two forms of environmental damage were observed: sulfide stress corrosion cracks and fissures. Fissures were observed under borderline conditions for sulfide stress corrosion cracking. In general, the data support the MR-01-75 guidelines for acceptable limits of H2S in gas service.

Subject
Environmental cracking, Hydrogen sulfide, Materials, Hydrogen concentration, Hydrogen attack, Corrosion cracking, Fissures, Partial pressures, Steel, Brines, Pitting, Sulfide stress cracking, Stress corrosion cracking
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1986
Association for Materials Protection and Performance (AMPP)
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