UT-18 VAC-ARC is a medium-carbon, low-alloy heat resistant steel having high strength to 1000°F. It is used primarily for turbine and compressor rotor shafts. Vacuum consumable electrode melting is employed to provide a preferred ingot solidification and superior microcleanliness Information Provided by Timken Latrobe Steel. Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co. |