Research in Industrial Trials to Improve Trough-Thickness Z35 Properties of Hot Rolled Heavy Plates up to 60 mm Thickness for Structural Steels
Keywords:
trough-thickness, Z25, Z35, structural steels, ship structures, offshore structures, beams in bridge constructions
Abstract
The main purpose of this industrial experimental rolling, done in ArcelorMittal Galati in the Heavy Plate Mill is to check the correlation between mechanical properties and the microstructure of chemical compositions used in trial in order to reach through-thickness Z properties. First chemical composition is C_Mn steel with mechanical properties designed to reach at least 275 MPa on yield strength. The other chemical composition is based on Nb and Ti alloying elements with mechanical properties designed to be equal or higher than 360 MPa. In total, four slabs with 250 mm thickness were rolled. Two slabs with targeted plates thickness of 22.5 mm and 60 mm were used in trial per each chemical composition in order to check the thickness feasibility of targeted through-thickness Z properties.
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References
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[5]. George E. Totten, Heat treatment handbook steel heat treatment - metallurgy and technology, Second edition, Taylor & Francis Group, p. 134, 159, 162, 2006.
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[16]. ***, Flat products of steel for pressure purpose – Part 3 – Wieldable fine grain steels, normalized, European Norm 10028-3-2003, p. 2-12, 2003.
[17]. ***, Hot rolled products of structural steels - Part 3: Technical delivery conditions for normalized/normalized rolled and wieldable fine grain structural steels, European Norm 10025-2-2004, p. 2-12, 2004.
[18]. ***, Steel products with improved deformation properties perpendicular to the surface of the product. Technical delivery conditions - Through-thickness properties, European Norm 10164, p. 2-15.
Published
2016-06-15
How to Cite
1.
DURDUC C, GURĂU L, DRUGESCU E, MUȘAT V. Research in Industrial Trials to Improve Trough-Thickness Z35 Properties of Hot Rolled Heavy Plates up to 60 mm Thickness for Structural Steels. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Jun.2016 [cited 25Dec.2024];39(2):42-3. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/1271
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