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Journal of Mineral and Material Science
[ ISSN : 2833-3616 ]


Supplements of Scrap in Steelmaking

Mini Review
Volume 1 - Issue 3


Dutta SK*
Published : August 24, 2020

Abstract

Steel scrap is an important raw material for electric steel making. The advent of continuous casting, which accounts 96.6% of the world crude steel output, has reduced drastically internal scrap generation in steel plants. The non-availability of consistent quality at a reasonable price necessitated the search for an alternative to scrap for use in steelmaking. These problems have been overcome with the help of i) sponge iron/DRI which is product of DR processes; ii) hot metal which can be produce by alternate routes of ironmaking. Sponge iron/DRI is not only a substitute for steel scrap as a feed material in EAF/IMF, but also a more suitable melting stock for the good quality steel production. Sponge iron/DRI derived from virgin iron units is a relatively pure material which dilutes contaminants in the scrap and improves the steel quality. Sponge iron/DRI offers consistency in composition and size, low residual elements and environment friendliness. The purpose of alternate smelting reduction is to produce hot metal similar to the blast furnace hot metal but without any depending on metallurgical coke. Hot metal, produce from alternate ironmaking processes, can be charged to EAF/IMF (within plant) to reduce scrap as well as electric power consumption.