Page 31 - Steel Tech India eMagazine Volume April 2022

VOL. 16 • NO. 3 • April 2022
thin Slab Casting & Rolling process for hot Rolled

Steel Coil production

Sanat Bhaumik
Steel Plantech, INDIA

INTRODUCTION of process steps in the production of hot rolled coils
(hRc). Originally tScR technology was developed
Steel produced by both BOF and eAF typically follow with the primary goal of reducing the investment and
similar routes after the molten steel is poured from the production costs but today it has become one of the
furnace. the molten steel is transferred to the ladle most promising production routes to maintain steel as
where the metal chemistry is adjusted to meet the final a leading material in technological application and it is
steel product specifications, which may include adding being considered as the technology which has reached
small amounts of other metal alloys.
a high degree of maturity. casting speed of 6.0 meters
For the production of hot rolled strips, liquid steel is per minute (m/min) for slab thickness of 90/100 mm is
generally cast in form of slabs usually in the thickness quite common these days and it is possible to produce
range of 150 mm to 350 mm in the continuous slab more than 4.0mtpy hRc by a 1650mm wide tScR
casting machines. these slabs are inspected, scarfed plant with 2 casting strands.
(if required) and then reheated in slab reheating till now 57 nos.of thin Slab casting &Rolling (tScR)
furnace to the rolling temperatures before being rolled plants have been installedworldwide by SMS Germany,
to hot rolled coils in conventional semi continuous or Danieli Italy, SPcO Japan and Primetals Austria (see
continuous hot strip mills.
table 1).
Development of thin slab casting and rolling (tScR) Table 1: List of Thin Slab Casting & Rolling Plant
technology is a step forward to reduce the number
Installations Worldwide

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