FIELD: machine building.
SUBSTANCE: samples significant to life of pipeline are cut out from controlled section. The samples are cut out from the least subject to wear sections of the pipeline; also, half of samples is annealed, while another half is left in initial state. Both parts of samples - the initiative (not annealed) and annealed are subjected to static and fatigue tests. There is made a comparative analysis and remaining life is determined on results of tests by a formula.
EFFECT: determination of remaining life of continuously operating pipelines with consideration of degradation of pipeline metal mechanical properties subject to effect of various long time loads.
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