April 27, Shougang Steel Factory came news of water, two steel-making furnace 30Si 4 regional success smelting steel.
    30Si steel is mainly used to make high-strength prestressed concrete centrifugal pipe piles, poles, viaduct pier, railway sleepers and other PC component PC base metal rods. To ensure the success of the smelter, steel mill steel office early introduction of the "100 tons of smelting steel bars prestressed technical operations Rod 30Si points", from the raw materials, smelting, refining, continuous casting of casting the detailed provisions All units in strict accordance with regulations, focus on good control of the converter back to P, double slag operation, reduce phosphorus in steel, to ensure that qualified components.
edoted by china metal roofing