||9310 VAC-ARC is a premium quality alloy carburizing steel produced by the vacuum consumable electrode process. It has a high hardenability, high core hardness and high fatigue strength, all of which make it ideally suited for critical aircraft engine gears.
Heat Treatment - Carburized at 1700°F for 8 hrs. Slow cooled to room temperature. Heated to 1425°F, oil quenched. Tempered at 300°F, 2 hrs.
Information Provided by Timken Latrobe Steel.Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.