FIELD: metallurgy.
SUBSTANCE: invention relates to the method of producing seamless machined pipes with 530×19-24 mm size from steel of "08Х18Н10-Ш" grade. The method includes casting hollow ingots by electroslag remelting size of 670×in.280×1900±50 mm, boring and turning them into hollow cakes with 650×in.300×1900±50 mm, heating ingot-blanks in the process furnace to a temperature of 1250-1260°C, the issuance of ingot-blanks from the furnace, lubrication from two ends of ingot-blanks with a mixture of graphite and common salt in a ratio of 50/50 mass equal to 1000-1250 g, piercing-rolling of ingot-blanks in the mill of cross-screw rolling with diametre of 490 mm into bushings of size 680×in.505×2900-3060 mm, rolling bushings on PPP 8-16" with pilgrim mills in disposal pipe sizes 550×40×5800-6200 mm, line of technological waste seed ends and pilgrim heads saw hot cutting, editing the correct six-high machine using rolling temperature of heating for passage to the 2-3 curvature of not more than 6.0 mm in total length of pipes, austenization, machining-boring and refacing metal recycling hot-rolled pipes measuring 550×40×5800-6200 mm in pipe sizes 530×19-24×5800-6200 mm.
EFFECT: reduction of a metal consumption coefficient.
2 cl, 1 tbl
