high carbon ferro chrome supplier
High carbon ferro chrome, also known as ferrochromium is the most important raw material for the production of stainless steel. The chromium content of more than 12% can greatly improve the corrosion resistance of stainless steel, so the chromium content in stainless steel is generally not less than 12%. High carbon ferrochrome is mainly used to produce ball steel, tool steel and high speed steel with high carbon content. It can improve the hardenability of steel, increase the wear resistance and hardness; when used as an additive for cast iron, it can improve the wear resistance and hardness of cast iron, and make cast iron have better heat resistance.
Generally, the smelting methods of modern high carbon ferro chrome supplier include a blast furnace method, an electric furnace method, and a plasma furnace method. Only blast furnaces can be used to produce special pig iron containing about 30% chromium. As of 2012, high-carbon ferrochrome with high chromium content was mostly smelted in a submerged arc furnace using a flux method. The basic principle of electric furnace smelting of high carbon ferrochrome is to reduce chromium and iron oxides in chrome ore with carbon. The starting temperature of carbon-reduced chromium oxide to form Cr2C2 is 1373K, the reaction starting temperature for generating Cr7C3 is 1403K, and the reaction starting temperature for reduction of chromium is 1523K. Therefore, the carbon-reduced chromium ore is obtained instead of metallic chromium. . The amount of carbon in the ferrochrome depends on the reaction temperature. It is easier to produce carbides with a higher carbon content than to produce carbides with a lower carbon content.
Anyang huatuo metallurgy, focused in ferro-alloy production, trading, exporting for more than 20 years. With experience in this field and excellent product quality and service, we can be your high carbon ferro chrome supplier. Also we can provide other ferroalloys, including medium carbon and low carbon ferrochrome.