AISI Type T5 is a tungsten high-speed steel to which cobalt (8.9%) is added to provide high and unusual red hardness. It is particularly well adapted for heavy-duty cutting and high-production cutting tools. Because of its high red hardness, a cutting edge can be maintained under conditions of speed, feed and depth of cut that would not be possible with ordinary high-speed steels. Typical applications of AISI Type T5 are lathe and planer tools, reamers, milling cutters and twist drills for heavy-duty cutting. This datasheet provides information on composition, physical properties, and hardness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-389. Producer or source: Tool steel mills.

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