FIELD: metallurgy.
SUBSTANCE: steel contains in wt %: from 14 to 28 Cr and from 6 to 30 Ni. Pipe has microstructure in which average dislocation content determined by X-ray diffraction analysis using Co pipes is 3.0±1014/m2 or higher on the internal surface of the steel pipe. Grain size of the steel pipe is preferably 50 mcm or less.
EFFECT: produced pipes have high resistance to steam oxidation.
3 cl, 2 tbl, 1 ex
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