The Paton Welding Journal, 2015, №02



2015 №02 (06)

DOI of Article 10.15407/tpwj2015.02.07

2015 №02 (08)

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The Paton Welding Journal, 2015, #2, 34-39 pages  

TECHNOLOGY OF MANUFACTURING HIGH-QUALITY WELDED TUBES FROM CORROSION-RESISTANT STEEL IN UKRAINE

T.N. Buryak¹, I.A. Katsaj², V.G. Kuznetsov², A.I. Novikov², A.A. Taranenko¹ And N.V. Yaroshenko¹

¹SE «NITI». 1a Pisarzhevsky Str., 49005, Dnepropetrovsk, Ukraine. E-mail: lab241@i.ua
²«ALFA-FINANS» Ltd. 4g Barrikadnaya Str., 49000, Dnepropetrovsk, Ukraine. E-mail: igor_ka68@mail.ru
 
 
Abstract
Welded thin-walled tubes are widely applied in different industrial sectors owing to a number of their advantages, compared to seamless tubes. The paper describes the experience of mastering in Ukraine manufacturing of thin-walled small diameter tubes from TR 316L steel by two variants: with weld metal deformation by rolling-off and without deformation. Longitudinal welds are made by TIG welding. The paper gives the results of comprehensive testing of manufactured tube samples, which are indicative of the fact that they are not inferior to seamless tubes as to their technological and mechanical properties, corrosion resistance and metallographic characteristics, and are even superior to them by a number of parameters. They meet the requirements of the respective ASTM and EN standards. 10 Ref., 4 Tables, 4 Figures.
 
 
Keywords: welded tube, technology, argon-arc welding, weld, quality, mechanical properties, intercrystalline corrosion, nuclear steam condensers
 
 
Received:                17.12.14
Published:               01.04.15
 
 
References
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2. (2010) ASTM A 249/A249M-10a: Standard specification for welded austenitic steel boilers, superheaters, heat-exchangers and condenser tubes.
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8. EN 10217-7.2005: Welded steel tubes for pressure purposes - Technical delivery conditions. Pt7: Stainless steel tubes.
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10. (2000) Stainless steel. Characteristics, grades and world-wide standards of steel. Avesta Sheffield AB. Bul. 10100.

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