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Slab

Slab
Definition:Compact block of pig iron; product of the casting process, which is the basic material for the rolling mill for hot strip processing.
Explanation:A slab is a block of metal produced directly from continuous casting or indirectly by rolling an ingot. It typically has a rectangular cross section where its length is a multiple of width and height. The dimensions are usually adapted to the further processing and final product. For the hot rolling process, the width is limited by the mill width and the final strip width since the slab is rolled in length direction. Thickness and length of the slab is then dependent on the desired weight of the final coil. Common final products include sheet metal, plates, strip material, pipes, and tubes.

Slabs maybe cooled down and stocked or shipped as semi-finished product. However, in modern production, it is attempted to process continuously from casting, hot to cold rolling, to further surface treatments.

Due to its raw and massive appearance, slabs are also used for local monuments in the industrial area of the “Ruhrgebiet”, e.g. at the Schurenbachhalde in Essen.
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Diagram:

(a) Slabs piled in stock, (b) reheated slab before hot rolling, and (c) Schurenbachhalde
SFB-Link:During material processing of high Mn steels different challenges have to be faced, since the raw materials exhibit high strengths already. At some sensitive spots in the laboratory, processing route needed to be changed and customized to the high strength level. The acquired experiences in SFB, build a foundation for industrial scale production development.