BRAETUF is a modified version of AISI Type M44 high-speed steel having superior cutting performance and superior wear resistance. It is an ultrahard high-speed steel recommended for machining highly alloyed steels at high hardnesses and also heat teated high temperature alloys. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-229. Producer or source: Magnesium Elektron Inc..