Sulfur increasing agent (iron sulfide powder) for iron sulfide cored wire;

① Adding a certain amount of sulfur to cast iron can improve cutting performance, inoculation effect and graphite morphology.

② Improve the mechanical properties of gray iron castings, purify the form of steel impurities, and improve the castability and service performance of molten steel.

③ Improve alloy yield, reduce alloy consumption, reduce steelmaking and casting costs.

④ Good flux and additives for precision casting in the smelting process of special steel can reduce and eliminate the nozzle blockage of continuous casting steel.