FIELD: metallurgy.
SUBSTANCE: invention relates to the method of producing seamless machined pipes with 530×18-22 mm size from steel of "08Х18Н10-Ш" grade. The method includes casting hollow ingots by electroslag remelting size 740×inner480×2,500±50 mm, boring and refacing in billet ingots with size of 720×inner500×2,500±50 mm, heating the billet ingots in reheat furnaces to the temperature of 1,260-1,270°C, delivery of them into ingot trolley, blowing with compressed air or inert gas, supply inside of billet ingots from two ends of lubricant with mass 1,800-2,000 g in the form of mixture of graphite with sodium chloride in a ratio of 50/50, transportation of hollow billet ingots to the upstream side of the Pilger mill, rolling at Pilger mill into stock with size 550×40×5,900-6,200 mm, cutting of process wastes: bare ends and pilger heads by hot cutting saw, straightening on a six-roll straightening machine, austenitizing, mechanical treatment-boring and turning of hot-rolled pipe stock with size 550×40×5,900-6,200 mm into commercial pipes with size 530×18-22×5,900-6,200 mm.
EFFECT: reduction of metal consumption in pipes production.
2 cl, 1 tbl
