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Content archived on 2022-11-21

Improvement of cleanness and fine-grain structure of Ca-treated and Al-deoxidised steels with a high S content made by continuous casting of billets and blooms

Objective

The automotive industry has requirements for Al-deoxidized steel grades with S- contents between 0.02 and 0.1% to ensure good machinability and high cleanness requirements. Castability and cleanness of these steels are critical because the higher S- contents and basic top slags limit the Ca-treatment. In this research project the process routes: - EAF-LFV; - LD-RH-degassing, are to be optimized. Ladle metallurgy and process engineering will be investigated for the production of these critical steels with high cleanness requirements, aiming at good castability and improved cleanness. Depending on the results achieved with bloom casting, it is planned to investigate the suitability of billet cast material as well. In addition, a novel "Oxide Metallurgy" to substitute for Al will be investigated for improvements in castability, cleanness and toughness.

Call for proposal

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Coordinator

SAARSTAHL
EU contribution
No data
Address
Bismarkckstrasse, 57-59
66330 VÖLKLINGEN
Germany

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Total cost
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Participants (2)