Sour Environments
Sour Environments : Fluids containing water as a liquid and hydrogen sulfide are considered sour environments and may cause sulfide stress cracking of susceptible materials. This phenomenon is affected by complex interactions of parameters including: (1) metal chemical composition, strength, heat treatment, and microstructure; (2) pH; (3) hydrogen sulfide concentration and total pressure;) 4) total tensile stress; (5) temperature; (6) time. The user shall determine the environment conditions in which the metallic materials are to meet the requirements of this Standard. The following guidelines are offered to assist the user in making this judgment
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