Chromium iron is the most important material in the manufacture of the stainless steel, mainly used in production of stainless steel, bearing steel, tool steel, nitriding steel, refractory steel, quenched and tempered steel, carburized steel and hydrogen resistant steel, this is due to the difference of chromium in stainless steel, decided to properties of stainless steel is only one element, and this is chrome, each kind of stainless steel must contain a certain amount of chromium.
The application areas of high carbon ferrochrome, the corrosion resistance of stainless steel mainly comes from chrome. Experiments show that only the chromium content more than 12% ShiGang corrosion resistant performance will be greatly improved, as a result, the chromium content in stainless steel is general not less than 12%. So the chromite is supply and demand and the stainless steel market supply and demand.
High carbon ferrochrome is mainly used for stainless steel production, of which 200 series stainless steel chromium content is about 16%, 300 series stainless steel chromium content is about 25%, 400 series stainless steel chromium content is about 14%. Ferrochrome demand maximum of 300 series stainless steel and stainless steel production in the largest proportion of the product. Used as high carbon ball bearing steel, tool steel and high speed steel alloy agent, improve the hardenability of steel, increase the wear resistance and hardness of the steel; Is used as the additives for cast iron and improving the wear resistance of cast iron and improve the hardness, at the same time make the cast iron has good heat resistance; No residue is used as the method and the sicr, low, low carbon ferrochrome chromium raw material; Used as the electrolytic process in the production of metallic chromium containing chromium raw material; Used as a method of oxygen blowing smelting stainless steel materials.
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