Toothed wheel used for a gearing is made from a rust-free steel containing carbon, nitrogen, chromium, and molybdenum

摘要

Toothed wheel is made from a rust-free steel containing 0.15-0.50 % carbon, 0.2-0.5 % nitrogen, 13-17 % chromium, and at least 0.5 molybdenum. The surface is chemically changed by diffusing in carbon and/or nitrogen and a part heat treated so that the surface has a hardness of at least 61 HRC.