| Issue |
Rev. Metall.
Volume 108, Number 6, 2011
|
|
|---|---|---|
| Page(s) | 323 - 330 | |
| DOI | https://doi.org/10.1051/metal/2011059 | |
| Published online | 23 December 2011 | |
S700MC/Grade 100 in heavy gauges: industrialisation at ArcelorMittal europe*
Industrialisation à ArcelorMittal Europe : la nuance S700MC forte épaisseur
ArcelorMittal Global R&D Ghent,
J.F. Kennedylaan 3,
9060
Zelzate,
Belgium
e-mail: Lieven.Bracke@arcelormittal.com;
Nico.DeWispelaere@arcelormittal.com;
Hany.Ahmed@arcelormittal.com;
Ozlem.Esma.Gungor@arcelormittal.com
Received:
31
August
2011
Accepted:
5
October
2011
A metallurgical route to produce S700MC/Grade100 steel on a hot strip mill has been developed at ArcelorMittal Europe, based on laboratory simulations and industrial trials. The importance of ThermoMechanically Controlled Processing (TMCP) has been illustrated, mainly to optimize the low temperature toughness. Furthermore, it has been shown that the optimum combination of strength and low temperature toughness can be found through optimization of the transformation and the precipitation. The concept developed shows a good robustness against typical industrial process variations.The steel shows a good weldability using typical MAG welding parameters, without loss in strength and a good toughness. The high cycle fatigue performance of the steel is very good.
Résumé
Pour répondre aux exigences croissantes du secteur du transport, des engins de manutentation lourds et des machines agricoles, ArcelorMittal a étendu récemment son offre commerciale d’aciers à haute limite élastique. L’industrialisation de la nuance S700MC jusqu’à une épaisseur de 12,7 mm est une étape importante dans cette stratégie. En optimisant l’utilisation d’éléments de micro-alliages et les paramètres de laminage du train à bande, une excellente combinaison de résistance mécanique, ténacité et propriété d’emplois peut être obtenue.
Key words: S700MC / Grade 100 / industrialisation / Ti-Nb HSLA steel / hot strip mill / heavy gauges / thermomechanically controlled processing
Mots clés : Acier S700MC / industrialisation / Ti-Nb HSLA / laminage à chaud / forte épaisseur / laminage thermo-mécanique
© EDP Sciences, 2011
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