FIELD: corrosion protection. SUBSTANCE: invention is aimed at increasing corrosion immunity of oil-gage pipes of low-carbon steel operated in media containing hydrogen sulfide and carbon dioxide. Method of heat treatment includes cooling pipes in air from temperature of the end of rolling process with subsequent additionally heating to 690-72 C following by one more cooling in air. EFFECT: increased corrosion immunity.
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Authors
Dates
1997-07-27—Published
1996-05-17—Filed