Since 1953 Chicago Magnesium has been at the forefront of magnesium and aluminum sand casting. Chicago Magnesium was the first foundry in the world to supply production castings in magnesium sand casting alloy WE43. Revolutionary at the time, this high strength corrosion resistant alloy developed by Magnesium Elektron offers excellent elevated temperature mechanical properties up to 480 degrees F. The alloy is targeted at applications such as helicopter and aero engine transmission cases