FIELD: metal pressure working. SUBSTANCE: billet - hot-deformed pipe - is cut into billet lengths and machined, then it is deformed by rotary drawing, hardened at 850 C with cooling in water, tempered at 430 C for 2 hours with cooling in oil, deformed by rotary drawing at deformation degree of 50% , and squeezed out at 300 C for 2 hours. EFFECT: improved quality of the product.
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