The Influence of Alloying Elements on the Hot Ductility Behavior of Steel Grades at SSAB

The susceptibility of continuously cast slabs to transverse surface cracking is strongly dependent on steel chemistry. This study focused on how solute elements interplay to impact transverse slab cracking in relation to their hot ductility behaviors during strand unbending. The investigation involved an extensive hot ductility experimental work on different steel grades in the temperature range of 600 to 1,200°C. The experiments were coupled with post-mortem analyses and thermodynamic calculations to assess the impact of different solute elements. The results were used to develop a comprehensive database with visualization capabilities for optimizing the continuous casting process.

Authors:

Yufeng Wang | SSAB Americas
 

Sunday Abraham | SSAB Americas
 

Nolan Nelson | SSAB Iowa Inc.
 

Michael Cooke | SSAB Iowa Inc.
 

Bryant Mathis | SSAB Alabama Inc.
 

Jason Thomas | SSAB Alabama Inc.
 

Hans Magnusson | Swerim
 

Session Chairs:

Joydeep Sengupta | ArcelorMittal Global R&D - Hamilton
 

Bikram Konar | Boston Metal