Thin Slab Casting is a significant evolutionary step in casting methodology and allowed much more efficiency and therefore cost effectiveness to be applied to the casting process.
With thick slab casting being used predominantly, the introduction of thin slab casting allowed for a range of process efficiencies including the reduction of total production line from 800m to 250m.

For the production of flat products, liquid steel is generally cast in form of slabs usually in the thickness range of 150 mm to 350 mm in the continuous slab casting machines. These slabs are inspected, scarfed and then reheated in slab reheating furnace to the rolling temperatures before being rolled to hot rolled coils in a semi continuous or continuous hot strip mills.  Development of thin slab casting and rolling (TSCR) technology is a step forward to reduce the number of process steps in the production of hot rolled coils (HRC). Originally TSCR technology was developed with the primary goal of reducing the investment and production costs but today it has become one of the most promising production routes to maintain steel as a leading material in technological application and it is being considered as the technology which has reached a high degree of maturity. Casting speed of 6.0 meters per minute (m/min) for slab thickness of 50/55 mm is quite common these days.