The metal chromium is used for nickel, cobalt based high temperature alloy, aluminum alloy,titanium alloy, resistance alloy, corrosion resistant alloy, alloy and stainless steel production.Chromium metal industrial production has two kinds, one kind is aluminothermy chromium,massive, bright color, has a metallic luster, with Cr>98%, according to the use of differentrequirements on impurity; another is the electrolytic chromium, sheet, the surface is dark brown, the hydrogen refining after surface bright, containing Cr>99%.