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ArticleName Improvement of the technology of bimetallic seamless tube production for pipelines of nuclear energy plants
ArticleAuthor A. I. Komarov, V. Ya. Osadchiy, K. N. Nikitin, A. V. Safyanov, A. P. Kolikov

Chelyabinsk Pipe Rolling Plant (Chelyabinsk, Russia)

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


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


National University of Science and Technology “MISiS” (Moscow, Russia):

Kolikov A. P., Dr. Eng., Prof.


The developed and theoretically proved innovative bimetallic tube production technology has been presented. Manufacture of tunes with the size 351×36 mm and 426×40 mm from 10GN2MFA steel with an inner cladding layer of 08Kh18N10T steel with thickness 7±2 mm is examined. The area of application of such tubes is nuclear energy plants. The developed tubes allow to decrease theoretical consumption ratio of 10GN2MFA steel for production of shells; consumption ratio of 08Kh18N10T steel for production of inserts; consumption ratio of both steels in tube rolling at TPU 8–16 unit with pilger mills; consumption ratio of metals during rolling of hot-rolled rube billets in commercial cold-rolled tubes in KhPT 450 mill, as well as to lower tube rejects by cladding thickness and numbers of KCU rejects at –10 °C for the main metal (10GN2MFA). The length of commercial tubes 351×36 mm is also increased by 2.4 times.

keywords Helical rolling mill, tube-rolling plant with pilger mill, ESR ingot billets, steel making, hot-rolled tubes, cold-rolled tubes, bimetallic tubes

1. Christopher D. Bimetallic Tubes. Mechanic Engineering. 1961. Vol. 83. No. 6. pp. 68–71.
2. Jaromir V. Das Plattierten von Rohreen mit Metallen und Plasten. Neue Hune. 1964. No. 3. S. 47–52.
3. Broking H. Oberfl achtnschuts von Staht druch Kupferplattietung. Metalloberflache. 1947. No 5.
4. Margunov T. Kh. Nuclear power stations. Moscow : Vysshaya shkola, 1978. 360 p.
5. Herbergs G., Gversen K., Staubwasser W. Schweissen und Schneiden. 1974. No. 26. S. 341–343.
6. Report: “Technology development and creation of pilot models of bimetallic pipes (10GN2MFA + 08Kh18N10T) (10ГН2МФА + 08Х18Н10Т) with large diameter from billets, obtained by vacuum arc remelting”. Dnepropetrovsk, 1979.
7. Dolinin D. P., Petrov A. K., Tulin N. A. et al. Structure and properties of vacuum arc remelting bimetal. Stal. 1983. No. 1. pp. 44–48.
8. Chepurko M. I., Karpenko N. P., Safyanov A. V. et al. Technological basis of production of bimetallic pipes. Chelyabinsk : Metall, 1993. 384 p.
9. Safyanov A. A., Fedorov A. A., Pashnin V. P. et al. Bimetal blank from (10GN2MFA+08X18N10T) grade steels and its fabrication for production of cold-rolled bimetal out 279×36 and out 346×40 mm size pipes with inner clad 7±2 mm deep ply from “08Х18Н10Т” grade steel for nuclear power structures. Patent RF, No.2554249. IPC V21V1/00, V21V19/00. Applier and patent-holder: JSC «Chelyabinsk Pipe-Rolling Plant». No. 2013129172/02. Applied: 25.06.2013. Published: 27.12.2014. Bulletin No. 36.
10. A. A. Safyanov, A. A. Fedorov, V. P. Pashnin et al. Bimetal blank out of steel grades (10GN2MFA+08X18N10T) to manufacture hot-rolled, machined, bimetal pipes with size vn279×36 mm for nuclear power facilities. Patent RF, No. 2567420. IPC V21V1/00. Applier and patent-holder: «Chelyabinsk Pipe-Rolling Plant». No. 2013114022/02. Applied: 28.03.2013. Published: 10.11.2015. Bulletin No. 31.
11. A. A. Safyanov, A. A. Fedorov, V. P. Pashnin et al. Method to produce hot-rolled mechanically treated bimetal pipes with size vn279×36 (351×36) and vn346×40 (426×40) mm from steel of grades 10GN2MFA+08X18N10T with internal plating layer of steel 08H18N10T with thickness of 7±2 mm. Patent RF, No. 2516137. IPC V21V21/00. Applier and patent-holder: JSC «ChTPZ». No. 2012149667/02. Applied: 21.11.2012. Published: 20.05.2014. Bulletin No. 13.
12. Technical Requirements 14-3-1393-88. «Wireless hot-rolled bimetallic pipes for nuclear power plants’ pipe-lines».

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