3rd International Workshop Surface quality of continuously cast products – IWSQ-3

Session

SURFACE QUALITY OF LONG AND FLAT SEMIS: PLANT RESULTS AND LAB EXPERIMENTS

13 Mar 2026, 08:30

Hotel Weitzer Graz

Conveners

SURFACE QUALITY OF LONG AND FLAT SEMIS: PLANT RESULTS AND LAB EXPERIMENTS

• Thomas Griessacher (Stahl- und Walzwerk Marienhütte)

19. Effect of EMS Parameters on The Surface and Subsurface Defects

Carlo Mapelli (Politecno di Milano)

13/03/2026, 08:30

Surface quality of long and flat semis: Plant results and lab experiments

Oral Presentation

This work investigates the critical correlation between electromagnetic stirrer (EMS) operation in a continuous casting mold and the formation of internal defects in cast billets. While EMS intensity must be increased, particularly for square billet formats, to achieve sufficient molten steel agitation and homogenization, this study highlights the detrimental side effects of such...

11. Influence of Mold Level Control Dynamics on Billet Surface Quality: A Quantitative Analysis

Federica Di Giovanni (Feralpi Siderurgica S.p.A.), Giulia Buratti (Feralpi Siderurgica S.p.A.)

13/03/2026, 08:55

Surface quality of long and flat semis: Plant results and lab experiments

Oral Presentation

In the continuous casting of steel billets, the initial solidification at the meniscus is the critical determinant of surface quality. The shell characteristics and geometry are intrinsic features of the process, resulting from the interaction between mold process parameters and the solidifying meniscus. However, defects and irregularities significantly alter the local heat transfer...

12. Development of optimized continuous casting process for zero-defect round blooms production in high silicon 54SiCr6 automotive spring steel. Production trials in Acciaierie Bertoli Safau S.p.a

Sara Busolini (ABS - Acciaierie Bertoli Safau S.p.A.)

13/03/2026, 09:20

Surface quality of long and flat semis: Plant results and lab experiments

Oral Presentation

Surface quality is a well-known critical factor affecting the fatigue life of components. Therefore, the quality of the initial feedstock is mandatory for producing wire rod suitable for high stress applications, such as automotive suspension springs. This paper describes the successful experience of ABS (Acciaierie Bertoli Safau, Italy) during the development of a dedicated casting process of...

2. Effect of Mn/S ratio on surface quality in continuous casting of steel

Takuya Takayama (Montanuniveristaet Leoben)

13/03/2026, 09:45

Surface quality of long and flat semis: Plant results and lab experiments

Oral Presentation

The required properties and the higher strength demands for steel products have been increasing in recent years, leading to the various production routes and the increase in the content of alloying elements. Furthermore, steel industries are facing pressure to transform their production processes to achieve a carbon-neutral society. In these environmental changes, maintaining and further...