FIELD: oil-and-gas production.
SUBSTANCE: invention relates to recovery of industrial pipe-lines and can be used in chemical, petrochemical, oil-and-gas production and other fields of industry for recovery of structure and official properties of industrial pipe-lines from austenitic steels. Method corresponds in following. It is implemented cutting of pipeline for sections. Then each section is tempered in furnace by means of hating up to specified temperature, isolation at this temperature and cooling. Heating of each section is implemented up to the temperature of austenisation. After it is implemented installation of pipeline from tempered sections and welding of annular joints. For strengthening of annular joints it is implemented peening of each seam directly after implementation of each pass.
EFFECT: resource increasing of industrial pipe-lines made of austenitic steels.
1 ex
