THIN CAST STRIP AND THIN STEEL SHEET OF COMMON CARBON STEEL CONTAINING LARGE AMOUNTS OF COPPER AND TIN AND PROCESS FOR PRODUCING THE SAME

摘要

The present invention provides a thin cast strip ora thin steel sheet having good cast strip properties andmechanical properties from a molten steel containing alarge amount of iron scrap containing Cu and Sn. Thethin cast strip or thin steel sheet is characterized bybeing a thin cast strip or thin steel sheet of a commoncarbon steel comprising 0.15 to 10% by weight of Cu and0.03 to 0.5% by weight of Sn, the primary dendritespacing on a surface layer portion being in the range offrom 5 to 100 µm.