New grades of steel for oil- and gas-line pipe of strength class K55 (steel 07GFB) and for pump-compressor tubing of strength class Ks (steel 18GFB) have been developed and undergone factory testing. The Cherepovets Metallurgical Combine Severstal has tested a new technology for making these experimental steels in a converter and subjecting them to controlled rolling to obtain coiled skelp on a 2000 continuous mill. The Volgorechensk Pipe Plant (owned by the company Gazpromtrubinvest) has used the steels to prepare trial batches of pipes that meet the established requirements.
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Translated from Metallurg, No. 9, pp. 35–39, September, 2008.
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Zikeev, V.N., Kharchevnikov, V.P., Filatov, N.V. et al. Developing and testing structural steels with superior resistance to cold and to cracking in hydrogen-sulfide-bearing media for use in the production of electric-welded (HFC) oil-field tubing. Metallurgist 52, 491–497 (2008). https://doi.org/10.1007/s11015-009-9083-x
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DOI: https://doi.org/10.1007/s11015-009-9083-x