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Title

DEVELOPMENT OF 510 MPA STRENGTH CLASS STEEL PLATES WITH HIGH TOUGHNESS PRODUCED BY ACCELERATED COOLING IN GERDAU OURO BRANCO

Authorship

Jr., Romeu Thomaz Viana; Silva, Afonso Cardoso da; Reis, Emanuelle Garcia; Silveira, José Herbert Dolabela da; Silva, Mateus Pedro Medeiros da; Fraga, Rafael Abreu; Faria, Ricardo José de

Jr., Romeu Thomaz Viana

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Silva, Afonso Cardoso da

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Reis, Emanuelle Garcia

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Silveira, José Herbert Dolabela da

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Silva, Mateus Pedro Medeiros da

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Fraga, Rafael Abreu

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Faria, Ricardo José de

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DOI

10.5151/9785-9785-32282

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Abstract

The Gerdau Ouro Branco Mill, three years after the implementation of its new plate mill, has started to develop high complexity products. The plate mill’s learning curve has been increasingly challenging since products are being developed to their highest grades. This work aims to present the first results of the development of steels of the strength class of 510 MPa produced by TMCP (Thermomechanical Controlled Processing) followed by accelerated cooling. These results show the potential and advantage of the accelerated cooling process regarding to obtain products of high mechanical strength and high toughness, associated with a low equivalent carbon.

Keywords

Plate Mill; Controlled rolling; Accelerated cooling; Toughness.