MATERIAL RELATED ASPECTS OF THIN SLAB CAS TING

Objective. The steel industry the world over is eagerly monitoring the ever growing success rate of the thin slab casting. A central questio n is what material properties the hot and cold strips have when produc ed by this process. Findings of laboratory and field trials on this to pic have therefore been compiled. Summary. The parameters for thin sla b casting and hot rolling can be tailored both for plain carbon steels and for microalloyed high-strength steels in such a way that the fini shed strip has less segregations, only a weak amount of crown, and mec hanical properties comparable to those of conventionally produced hot strip. Grain size differences in the microstructure can be compensated for by adjustments in the process technology. Furthermore, the select ive control of the temperature and arrangement of the pass schedule, f erritic rolling, and the production of very thin-gauge hot strips pres ent the possibility of developing new flat steel products. (E 29807).