Main usages: Metallurgy-chemical industry-refractory industry
Chromium is an important ingredient in steel; it gives this metal increased hardness and toughness, and it helps it reduce chemical erosion over time. Chromium is also vital in the aerospace industry because it is used to anodize the aluminum that is used to build aircraft and related equipment. These aluminum alloys made with chromium are incredibly heat resistant, making them ideal for use in jet engines. Chromite is an important refractory material, although production for this purpose is only approximately 1% of world production of chromite.