I would like to ask how the cost of steel support how the composition of the material composition of the number of what the size of the various specifications of how much raw materials are required
The cost of steelmaking process is mainly composed of pig iron, scrap steel, alloy, electrode, refractory material, auxiliary material, electricity, inspection and other expenses. At present, the main China steelmaking equipment for smelting converter and electric furnace, based on the different principle, converter and electric furnace in the main raw materials (iron and steel) ratio of certain differences, scrap converter process usually takes 10% of the usage and configuration, the electric furnace process scrap accounted for 80%.
Combined with the average domestic iron and steel enterprises, main factors influencing the total cost of the ironmaking process of raw materials (iron ore, coke and other costs) costs, recycling byproducts including materials, fuel, labor costs, offset only accounted for about 10% of the total cost and other expenses for the steelmaking process in addition to the main the raw materials increased, the power consumption of added alloy and maintenance costs rise accounted for about 18% of the total cost of steelmaking. Other fluctuations in the process of ironmaking, steelmaking.
The production cost of ironmaking process constitutes the main raw materials (iron ore pellets, etc.), auxiliary materials (limestone, silica, refractory material etc.), fuel and power (coke, coal, gas, oxygen, water, electricity), direct salary and welfare, manufacturing costs, cost deduction (gas recovery and water slag recycling, coke siftage recovery etc.). According to the principle of blast furnace smelting, the production of 1 tons of pig iron, 1.5-2.0 tons of iron ore, 0.4-0.6 tons of coke and 0.2-0.4 tons of flux.
