AISI Type M42 is capable of being heat treated to Rockwell C 68-70; in fact, it is a super high-speed steel. Its combination of composition and properties makes it suitable for machining high-hardness alloys and difficult-to-machine superalloys. Excellent wear resistance and high hot hardness are obtained in Type M42 without loss of cuttting-edge toughness. Typical tools made from this steel are broaches, drills, gear cutters and milling cutters. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-476. Producer or source: Tool steel mills.

FAGERSTA M-1 is a high-molybdenum, low-tungsten type of high-speed steel. It has good cutting ability, except for heavy-duty, continuous cutting operations where ultimate re-hardness is required. Its numerous uses include boring tools, gear cutters, milling cutters and twist drills. 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-345. Producer or source: Fagersta Steels Inc..

A1 Tech LMW is a molybdenum type of high-speed containing molybdenum and tungsten in the approximate ratio of 4 to 1. It is outstanding in high-speed cutting tool applications because of its machinability, toughness and good cutting qualities. It is used for numerous types of cutting tools such as twist drills, reamers, milling cutters, gears cutters, broaches, lathe tools and wood-working tools. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-383. Producer or source: AL Tech Specialty Steel Corporation.

REX AA is the original 18-4-1 high-speed steel, having been first introduced in the early 1990s. Melting practice and processing have been improved since that time, but nevertheless it is so properly balanced and the fundamental characteristics so sound, that it is still a standard, general-purpose high-speed steel. REX AA has a wide hardening range. This steel is less susceptible to soft skin during hardening than other types and has good red hardness and toughness. Among its many applications are boring tools, broaches, cutters, drills, gear cutters, lathe tools and woodworking knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-426. Producer or source: Crucible Specialty Metals Division, Colt Industries.

VASCO TeleCut is a cobalt-free high-speed steel that is a cost-effective alternative to many cobalt high-speed steels because of its special combination of hot hardness, wear resistance and toughness. TeleCut is a superior high-speed steel that is ideal for a variety of cutting tools, including end mills, milling cutters, broaches and gear cutters. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and machining. Filing Code: TS-428. Producer or source: Teledyne Vasco.

JESSOP MUSTANG is a tungsten-molybdenum high-speed steel that contains vanadium. It offers excellent cutting ability and, for most applications, its performance excels the tungsten-base (18 tungsten-4 chromium-1 vanadium) high-speed grades. It is often used as a general-purpose high-speed steel. Among its many applications are boring tools, broaches, cutters, drills, end mills, gear cutters, lathe tools, taps, punches and wood-working knives. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-430. Producer or source: Jessop Steel Company.

SPEED STAR is a fine-grained molybdenum-tungsten high-speed steel with an excellent combination of wear resistance and toughness. Among its many uses are lathe tools, drills, gear cutters and wood knives. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-303. Producer or source: Carpenter.

FAGERSTA FB-52 is a moderately alloyed high-speed tool steel (hardware grade) designed to provide a desirable combination of economy and good mechanical properties. It is especially well suited for twist drills and similar cutting tools. Among its many other uses are gear cutters, punches and wood-working tools. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-324. Producer or source: Fagersta Steels Inc..

SIMONDS M-2 is a general-purpose high-speed steel with excellent resistance to abrasion and shock. It is a molybdenum-tungsten type of high-speed steel and is not particularly susceptible to decarburization. Its many applications include lathe tools, gear cutters, thread chasers and circular saws. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: TS-343. Producer or source: Guterl Special Steel Company.

CPM REX 25 is a super high-speed steel made without cobalt. It is comparable to AISI Type T15 cobalt-containing high-speed steel in response to heat treatment, properties, and tool performance. CPM REX 25 is recommended for machining operations requiring heavy cuts, high speeds and feeds, and difficult-to-machine materials of high hardness and abrasion resistance. Typical applications are boring tools, drills, gear cutters, punches, form tools, end mills and broaches. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-365. Producer or source: Crucible Materials Corporation.

GUTERL M-2 is a molybdenum-tungsten type of high-speed steel with fairly good resistance to decarburization. It is a general-purpose high-speed steel and it provides excellent resistance to abrasion and shock. It is used widely for cutting tools. Among its many applications are hack saws, circular saws, lathe tools, gear cutters, planer tools and wood knives. 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-387. Producer or source: Guterl Special Steel Corporation.

GUTERL M-1 is a highly-molybdenum, low-tungsten type of high-speed tool steel. It is a general-purpose high-speed steel with an excellent combination of cutting ability, finishing characteristics and toughness. Guterl M-1 has good cutting ability for all operations except for heavy-duty, continuous cutting applications that require the ultimate in red hardness. Its toughness is as great as that of other high-speed steels. Its typical uses include circular saws, broaches, gear cutters, twist drills and taps. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: TS-391. Producer or source: Guterl Special Steel Corporation.

CPM REX 20 is the second in a family of super high-speed steels made without cobalt. (For the first one, see CPM REX 25, Alloy Digest TS-365, July 1980.) CPM REX 20 is comparable to the AISI Type 40 series of high-speed steels, particularly AISI Type 42, in heat-treating response and tool performance. CPM REX 20 is designed for use in machining operations requiring heavy cuts, high speeds and feeds, and for difficult-to-machine materials that are high in hardness and abrasion resistance. Typical applications are boring tools, drills, gear cutters and punches. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-398. Producer or source: Crucible Specialty Metals Division, Colt Industries.

SUPER STAR is a super high-speed steel capable of being treated to high hardness levels. Its combination of composition and properties facilitates the machining of high-hardness materials and difficult-to-machine superalloys. Excellent hot hardness and wear resistance are obtained in Super Star without loss of edge toughness. This datasheet provides information on composition and hardness as well as deformation. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-283. Producer or source: Carpenter.

FAGERSTA M-42 is a molybdenum super high-speed tool steel with a high carbon content and 8% cobalt. Its composition provides excellent cutting hardness and good hot-hardness characteristics. It is used widely for machining superalloys and steels that have been heat treated to Rockwell C 54. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, machining, and surface treatment. Filing Code: TS-327. Producer or source: Fagersta Steels Inc..

Circle-C is a high cobalt-tungsten steel having unusual red-hardness, and is particularly adapted for high production cutting tools. This datasheet provides information on composition, physical properties, and hardness. It also includes information on forming and heat treating. Filing Code: TS-110. Producer or source: Firth Sterling Corporation. See also CIRCLE C (T-5), Alloy Digest TS-502, October 1990.

Carpenter Micro-Melt Speed-Star FM HiC M-2 alloy is a molybdenum tungsten high-speed tool steel produced by powder metallurgy techniques. It has a more uniform structure than conventionally produced high-speed steels. It has good response to heat treatment, grinds easily, possesses improved wear resistance and toughness. This datasheet provides information on composition, physical properties, hardness, and compressive strength as well as fracture toughness. It also includes information on heat treating. Filing Code: TS-504. Producer or source: Carpenter.

FAGERSTA D-950 is a high-speed steel that combines economic considerations in a properly balanced chemical analysis. An optimum carbon-vanadium ratio provides a high attainable hardness along with good mechanical properties. Its wide hardening range and excellent response to secondary hardening is rather unique and can offer some advantages in heat treatment. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-307. Producer or source: Fagersta Steels Inc..

FAGERSTA M-2 is a widely used molybdenum-base high-speed steel. It is suitable for all general-purpose cutting-tool applications and it has an excellent combination of toughness and wear resistance. Its many applications include boring tools, chisels, lathe tools and shear blades. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and surface treatment. Filing Code: TS-337. Producer or source: Fagersta Steels Inc..

HS-100 is a super high-speed steel built on an AISI Type M33 base but with higher carbon and cobalt. It is able to attain an approximate hardness of Rockwell C 68 with normal heat treatment. It gains its great resistance to wear from its high hardness rather than from excess vanadium carbides. HS-100 is recommended for applications where long production runs or heavy-duty machining is involved. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and machining. Filing Code: TS-429. Producer or source: Latrobe Steel Company.