The production process of steel is mainly blast furnace-converter-rolling process, and its main process is: iron ore-sintering-blast furnace ironmaking-converter steelmaking-refining-continuous casting-heating-rolling-finishing.
According to the principle of blast furnace smelting, the production of 1 ton pig iron requires 1.5-2.0 tons of iron ore, 0.4-0.6 tons of coke and 0.2-0.4 tons of flux.
Therefore, the main factor affecting the total cost in the ironmaking process is the cost of raw materials (iron ore and coke).
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