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12-05-2021

Steel for Pipes of Strength Class K60 (X70) with Ferrite, Martensite and M/A-Component Microstructure for Sections of Main Pipelines Crossing Active Tectonic Disturbance Zones

Authors: M. Yu. Matrosov, M. S. Sakharov, O. N. Sychev, P. A. Mishnev, V. K. Lipin, E. V. Shulga, P. G. Martynov, A. A. Kichkina, M. Yu. Nedzvetskiy

Published in: Metallurgist | Issue 1-2/2021

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Abstract

Formation of the microstructure and properties of pipe steel grade K60 (X70) are studied using physical modeling of thermomechanical processing in a DUO 300 laboratory mill and industrial experiment. Steel microstructure is investigated and temperature ranges for formation of various phases and structural components (ferrite, bainite, martensite, M/A-component) with accelerated cooling are determined. It is found that formation of martensitic regions and M/A-component as secondary structural constituents in a ferrite matrix instead of cementite-containing secondary structures facilitates an increase in steel strength and improvement of the σ_y /σ_f ratio without a significant reduction in cold resistance. The chemical composition of steel grade K60 (X70) is developed on the basis of laboratory and industrial experiments, as well as a new industrial process for producing rolled product for pipes for the Sila Sibiri gas pipeline sections crossing active tectonic disturbance zones. Sheet and pipes have a low σ_y /σ_f ratio, high values of relative and uniform elongation, impact strength and proportion of ductile component in a fracture after DWTT testing at – 20°C.

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L. I. Éfron, Materials Science in “Big Metallurgy”. Pipe Steels [in Russian], Metallurgizdat, Moscow (2012)

M. Yu. Matrosov, L. I. Éfron, V. I. Il’inskii, et al., “Use of accelerated cooling for improving the mechanical and production properties of rolled plate for preparing large diameter gas pipes,” Metallurg, No. 6, 49–54 (2005).

S. Y. Nastich, Y. D. Morosov, L .I. Efron, and M. Y. Matrosov, “Steels with ferrite-bainite microstructure with improved weldability and cold resistance for main pipelines,” in: Int. Conf. of Processing and Manufacturing of Advanced Materials. THERMEC’2006, Vancouver, July 4–8, Canada (2006), pp. 4744–4749.

R. M. Denys, “Toughness and tensile properties requirements for defect acceptance in strain – based design,” in: Coll. Internat. Seminar “Contemporary Steels and Gas and Oil Pipes, Problems and Prospects,” Metallurgizdat, Moscow (2006), pp. 69–75.

Dan B. Lillig, “The First (2007) ISOPE Strain-Based Design Symposium – A review,” in: Proceedings of the 18th 2008, Int. Offshore and Polar Eng. Conf. (2008), pp. 1–12.

A.Takekazu, N. Kimihiro, Y. Koji, and S. Nobuhisa, “Development of high performance UOE pipe for linepipe,” JFE Technical Report, No. 18, 23–35 (2013).

T. Hara, Y. Shinohara, Y. Terada, H. Asahi, and N. Doi, “Development of high deformable high strain line pipe, suitable for strainbased design,” in: Proceedings of Pipeline Conference Ostend, 12–14 October (2009), pp. 2009–2014.

Sun Hao, Meng De-liang, et al., “Influence of cooling conditions on microstructure and tensile properties of X80 high deformability line pipe steel. Proceedings of HSLP 2010,” in: Int. Seminar on Application of High Strength Line Pipe. Xi’an (China) (2010), pp. 135–139.

Cao Zhiquang, Chen Quiming, et al., “Effects of thermomechanical control process on microstructure and mechanical properties of X80 grade high-strain pipe line steel. Proceedings of HSLP 2010,” in: Int. Seminar on Application of High Strength Line Pipe, Xi’an (China) (2010), pp. 140–143.

10.

Ishikava Nobuyuki, Endo Shingeru, and Kondo Joe, “High performance UOE linepipes,” JFE Technical Report, No. 7, 20 (2006).

11.

V. I. Il’inskii, S. V. Golovin, P. P. Stepanov, D. A. Ringinen, A.V. Chastukhin, L. I. Éfron, and A. A. Kichkina, “Development of technology in 5000 rolling mill for pipeline projects with extreme parameters,” Metallurg, No. 8, 35–42 (2017).

12.

A. A. Kichkina, M. Yu. Matrosov, L. I. Éfron, D. A. Ringinen, V. I. Il’inskii, I. V. Lyasotskii, and E. V. Shul’ga, “M/A-constituent in low-alloy bainitic steel structure. Part 2,” Metallurg, No. 12, 29–39 (2019).

13.

Cao Zhiqiang, Luoden, Xiong Xiangjiang, Wu Qingming, and Li Zhongping, “Effect of thermomechanical control process on microstructure and mechanical properties of X80 grade high-strain pipe line steel. Proceedings of HSLP 2010,” in: Int. Seminar on Application of High Strength Line Pipe 2010, June 28–29, Xi’an (China) (2010).

14.

M. Yu. Matrosov, M. S. Sakharov, O. N. Sychev, V. K. Lipin, et al., RF Patent 2675891 C1 MPK C21D 8/02. Method for Producing Hot-Rolled Sheet of Strength Class K60 up to 40 mm Thick, Claim o5.22.2018, Publ. 12..25. 2018, Bull. No. 36.

15.

M. S. Sakharov, A. I. Smelov, O. N. Sychev, A. G. Gavrilova, et al., RF Patent 2690076 С1 МPК С22С 38/14, С22С 38/12, С21D 8/02. Claim 12.18.2018, Publ. 05.30.2019, Bull. 16.

Title: Steel for Pipes of Strength Class K60 (X70) with Ferrite, Martensite and M/A-Component Microstructure for Sections of Main Pipelines Crossing Active Tectonic Disturbance Zones
Authors: M. Yu. Matrosov
M. S. Sakharov
O. N. Sychev
P. A. Mishnev
V. K. Lipin
E. V. Shulga
P. G. Martynov
A. A. Kichkina
M. Yu. Nedzvetskiy
Publication date: 12-05-2021
Publisher: Springer US
Published in: Metallurgist / Issue 1-2/2021
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI: https://doi.org/10.1007/s11015-021-01131-y

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