What tests need to go through in the 09CuPTiRE-B steel yield production process

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The sulfur element (S element) comes from the ore and fuel coke of steelmaking. It is a harmful element in 09CuPTiRE-B steel yield etc. steel. Sulfur exists in steel in the form of iron sulfide (FeS). FeS and Fe form a low melting point (985℃) compound. The hot working temperature of steel is generally above 1150 - 1200℃, so when the steel is hot working, the premature melting of FeS compound causes the workpiece to crack, which is called "hot brittleness". It reduces ductility and toughness of steel and causes cracks during forging and rolling. Sulfur is also detrimental to welding performance and reduces corrosion resistance.

ArcelorMittal said it was taking measures to cut its North American 09CuPTiRE-B steel yield steel production in response to the weakening demand for downstream steel after the outbreak of covid-19, foreign media reported. It is reported that ArcelorMittal's plant in the port of Indiana is ready to shut down the No. 4 blast furnace.