Speaking of high carbon chromium iron and low carbon ferrochrome, had to be started from ferrochrome. Ferrochrome with chromium and iron as the main component of ferroalloy, is one of the main alloy agent used in iron and steel industry. Ferrochrome high hardness, good abrasion resistance, chromium in steel can improve steel oxidation resistance, increase the corrosion resistance of steel. Chromium iron chromium containing 55% to 75%, according to the different carbon ferrochrome can be divided into high carbon ferrochrome, the carbon ferrochrome, low carbon ferrochrome and low carbon ferrochrome. So what's the difference between them?
High carbon ferrochrome 4-10%, the carbon content in carbon ferrochrome carbon content 0.5 4%, 0.15 0.5% of low carbon ferrochrome carbon content, low carbon ferrochrome carbon content less than 0.15%.
Micro carbon ferrochrome smelting method is electrical silicon thermal method and hot against the method, etc. It is mainly used for improving the oxidation resistance and corrosion resistance of steel, makes the surface of the steel in oxidizing atmosphere to form a layer of adhesion strong oxidation film, then stop or slow down oxide oxide. Low carbon ferrochrome China mainly for the production of stainless steel, wear resistant and heat resistant steel.
High carbon ferrochrome (carbon ferrochrome) main purposes are:
1, used as carbon high flow bead steel, tool steel and high-speed steel alloy agent, improve the hardenability of steel, increase the wear resistance and hardness of the steel.
2, as the additive of cast iron, cast iron and grinding and improves the hardness, at the same time make the cast iron has good heat resistance.
3, no residue is used as the method and sicr, low, low carbon ferrochrome and chromium in the raw material.
4, used as the electrolytic process in the production of metallic chromium containing chromium raw materials.
5, used as the material of oxygen blowing method smelting stainless steel. High carbon ferrochrome smelting technology: high carbon ferrochrome smelting with blast furnace method, electric method, plasma method, smelting reduction method, etc.
