UNS No. T11304 was developed to provide the excellent abrasion resistance that results from higher-than-normal carbon and vanadium in the molybdenum-tungsten high-speed steels. It is a high-hardenability steel and is recommended where sharp edges are needed for fine cuts. It is an excellent choice for heavy-duty cutting operations and should always be used at or near its maximum secondary hardness. Typical applications are reamers, milling cutters, punches and lathe tools. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-443. Producer or source: Tool steel mills.

Crucible REX M4 is a special-purpose high-speed tool steel that is designed to provide high wear resistance in tools. Its high vanadium and carbon content provides superior resistance to cratering and wear in cold work punches, die inserts, and cutting applications involving high speed and light cuts. It is designed to give maximum performance while working with abrasive materials, exhibiting better wear resistance than Types M2 or M3. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-812. Producer or source: Crucible Industries LLC.

CARPENTER MICRO-MELT M-4 ALLOY is a molybdenum tungsten bearing powder high-speed tool steel with high carbon and vanadium. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-540. Producer or source: Carpenter.

Boehler (or Böhler) S693 Microclean provides good red hardness, compressive strength, and wear resistance. The powder metallurgy technology imparts excellent toughness and machinability properties to the material. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming, heat treating, machining, and powder metal forms. Filing Code: TS-673. Producer or source: Böhler-Uddeholm North America.

AISI Type M4 is a high-hardenability tool steel developed to provide the excellent abrasion resistance that results from higher-than-normal carbon and vanadium in the molybdenum-tungsten high-speed steels. It is recommended where sharp edges are needed for fine cuts. It is an excellent choice for heavy-duty cutting operations and should always be used at or near its maximum secondary hardness. Typical applications are reamers, milling cutters, punches and lathe tools. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-376. Producer or source: Tool steel mills.

MOLITE 4 is a high-carbon, high-vanadium, tungsten-molybdenum high-speed steel that approaches the ultimate in wear resistance for high-speed steels in this group. The advantages in using this steel comprise (1) Very high wear resistance, (2) High red hardness, (3) Good toughnes and (4) Moderate grindability. Among its many uses are punches and dies for blanking and forming thin sheet, milling cutters, twist drills, reamers, forming rolls, cold-extrusion punches and draw dies. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-447. Producer or source: Columbia Tool Steel Company.

NEATRO is a high-hardenability molybdenum-tungsten type of high-speed steel; it differs from other molybdenum-tungsten high-speed steels because of its very carbon and vanadium contents. Its high resistance to abrasion adapts it for all operations requiring fine cuts such as broaching and reaming. It also can be used with excellent results for many other types of tools including form cutters, hobs, milling cutters, lathe and planer tools, chasers and drills This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-2. Producer or source: Teledyne Vasco. Originally published December 1952, revised August 1979.

STARK is a super high-speed steel having a very high carbon and vanadium content for exceptional abrasion resistance. It is well suited for premium cutting tools of all types, particularly those used for machining abrasive alloys, castings and heat-treated materials. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-441. Producer or source: Latrobe Steel Company.