Chelyabinsk Pipe Rolling Plant (Chelyabinsk, Russia):

A. I. Komarov, Advisor of Chairman of the Board
K. N. Nikitin, Technical Director
A. V. Safyanov, Cand. Eng., Technologist of Production Technological Dept., e-mail: anatoliy.safyanov@chelpipe.ru

Moscow Technological University (Moscow, Russia):
V. Ya. Osadchiy, Dr. Eng., Prof., Advisor of General Director

National University of Science and Technology “MISiS” (Moscow, Russia):
A. P. Kolikov, Dr. Eng., Prof., e-mail: apkolikov@mail.ru

Technological procedures for manufacture of tubes with diameter 508, 530 and 550 mm and with different wall thickness from steel grades 20, 09G2S and 32KhA at the 8-16” tube rolling mill with pilger mills have been developed at Chelyabinsk Pipe Rolling Plant. Continuously cast billet with diameter 550 mm was produced in the shop “Ozon 32” at Pervouralsk Novotrubny Plant and used as an initial billet. Manufactured tubes completely meet the requirements of technical specifications TU 14-3P-55-2001, TU 14-3-1128-2012 and TU 14-158-2007. This technology for production of seamless tubes was put into operation and allowed to replace the previously existing production facilities for tubes made from forged billet with diameter 600 mm, including deletion of the stage of preliminary billet drilling.

1. Safyanov A. V. et. al. Method of fabrication of seamless hot-rolled pipes 530×17–60, 550×25–60, 610×32–50 and 630×32–60 mm out of forged continuously cast billets, ingots and hollow ingots of electroslag remelting process at pipe-rolling unit 8-16” with pilger mills of JSC CHTPZ. Patent RF, No. 2550035. Claimer and patent holder: JSC CHTPZ. Applied: 28.06.2013; published 10.05.2015. Bulletin No. 1.
2. Safyanov A. V. et. al. Method for producing in tube rolling plants with pilger mills seamless hot-deformed large- and mean-diameter tubes for steam boilers, steam pipes and collectors of plants with high and super-critical parameters of steam from ingots of electroslag refining and continuously cast billets. Patent RF, No. 2297891. Claimer and patent holder: JSC CHTPZ. Applied: 20.11.2006; published 27.04.2007. Bulletin No. 12.
3. Safyanov A. V. et. al. Method for producing in tube rolling plants with pilger mills seamless hot-deformed large- and mean-diameter tubes for steam boilers, steam conduits and manifolds of plants with high and super-critical parameters of steam from electroslag refining ingots or continuously cast billets. Patent RF, No. 2322314. Claimer and patent holder: JSC CHTPZ. Applied: 27.07.2007; published 20.04.2008. Bulletin No. 11.
4. Osadchii V. Ya., Safyanov A. V., Burakov A. P., Nikitin K. N., Kolikov A. P., Danovskii, N. G., Bubnov K. E. Production of seamless pipe in a pilger mill with new groove confi gurations. Steel in Translation. 2016. Vol. 46, No. 2. pp. 144–149.
5. Nikitin K. N., Osadchiy V. Ya., Safyanov A. V., Kolikov A. P., Bubnov K. E. Improvement of production technology for seamless hexagonal tubes made of boron-containing steels. Chernye metally. 2016. No. 10. pp. 39–43.
6. Pyshmintsev I. Yu. 55^th anniversary of RosNITI JSC. In motion to the new achievements. Chernye metally. 2016. No. 8. pp. 25–31.
7. Pyshmintsev I. Yu., Belomestnov A. K., Kosmattskiy Ya. I., Veselov I. N., Barichko B. V. Exploration of pipe production technology of highalloying alloy «ТМK-С». Chernye metally. 2017. No. 3. pp. 30–35.
8. Gerasimov Yu. L., Avdeev S. V., Babarikin Yu. L. Study of the effect of features of oxidized coating of piercing plugs on their operating resistance. Chernye metally. 2017. No. 7. pp. 46–49.
9. Shinkin V. N. Springback coefficient of the main pipelines’ steel large diameter pipes under elastoplastic bending. CIS Iron and steel review. 2017. Vol. 14. pp. 28–33.
10. Shinkin V. N. Arithmetical method of calculation of power parameters of 2N-roller straightening machine under flattening of steel sheet. CIS Iron and steel review. 2017. Vol. 14. pp. 22–27.
11. Bogatov А. А., Pavlov D. A., Nukhov D. Sh. Crew rolling of continuously cast billets from structural steel grades. Yekaterinburg: Izdatelstvo Uralskogo universiteta, 2017. 164 p.
12. Safjanov A. V. et. al. Pilger mill roll for hot rolling of 508×10–15 mmpipes. Patent RF, No.2537342. Claimer and patent holder: JSC CHTPZ. Applied: 22.03.2013; published 27.09.2014. Bulletin No. 27.
13. Safjanov A. V. et. al. Pilger mill roll for hot rolling of 530 and 550 mm thin-wall pipes. Patent RF, No. 2537637. Claimer and patent holder: JSC CHTPZ. Applied: 12.03.2013; published 20.09.2014. Bulletin No. 26.