ferro silicon chrome ferro chrome58% 60% steelmaking ferro chrome

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Ferro Chrome

The addition of chromium to steel can significantly improve the oxidation resistance of steel and increase the corrosion resistance of steel. Chromium is contained in many steels with special physicochemical properties. The chromium in the steel is added with ferro chrome. High carbon ferro chrome is used as an alloying agent for ball steel (0.5% to 1.45% Cr), tool steel, die steel (5% to 12% Cr) and high speed steel (3.8% to 4.4% Cr) to improve the quenching of steel. Permeability increases the wear resistance and hardness of steel. The addition of chromium to cast iron improves hardness and improves wear resistance. Chromium containing 0.5% to 1.0% improves mechanical properties. High-carbon ferro chrome and charge-grade ferro chrome are used in large quantities to smelt stainless steel (AOD or VOD method) to reduce production costs. Medium and low carbon ferro chrome is used to produce medium and low carbon structural steel, carburized steel, gears, high pressure blower blades, valve plates, etc. Micro-carbon ferro chrome is used in the production of stainless steel, acid-resistant steel, heat-resistant steel and electrothermal alloy.