AISI TYPE T4

Alloy Digest ◽  
1982 ◽  
Vol 31 (3) ◽  
Keyword(s):  
Tool Steel ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
The Other ◽  
High Speeds ◽  
Steel Mills ◽  
Aisi Type ◽  
The Matrix ◽  
Red Hardness ◽  
Nonferrous Alloys

Abstract AISI Type T4 is made by adding 5% cobalt to the conventional 18% tungsten-4% chromium-1% vanadium (AISI Type T1) tool steel. The cobalt dissolves in the ferrite and strengthens the matrix of the steel whereas the other alloying elements form carbides. Thus the cobalt increases the hot or red hardness, thereby enabling the tool to maintain a higher hardness at elevated temperatures. Type T4 is well adapted for cutting hard, gritty materials such as cast iron or other abrasive materials and for cutting nonferrous alloys at high speeds. This datasheet provides information on composition, physical properties, and hardness as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-395. Producer or source: Tool steel mills.

AISI TYPE H26

Alloy Digest ◽  
1975 ◽  
Vol 24 (12) ◽  
Keyword(s):  
Tool Steel ◽  
High Speed ◽  
Elevated Temperatures ◽  
Cold Work ◽  
Heat Treating ◽  
Liquid Cooling ◽  
Steel Mills ◽  
Aisi Type ◽  
Red Hardness ◽  
High Degree

Abstract AISI Type H26 hot-work tool steel is the 18 tungsten-4 chromium-1 vanadium high-speed composition with lowered carbon to provide a high-degree of toughness. It has high red hardness and good resistance to abrasion. It is preferable to the conventional hot-work tool steels for applications in which higher hardness must be maintained at elevated temperatures. It is also recommended in cold-work that involve long runs, but should not be used where liquid cooling is required. 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-294. Producer or source: Tool steel mills.

RED CUT COBALT

Alloy Digest ◽  
1980 ◽  
Vol 29 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Cast Iron ◽  
High Speed ◽  
Elevated Temperatures ◽  
High Speed Steel ◽  
Heat Treating ◽  
High Speeds ◽  
Red Hardness ◽  
Nonferrous Alloys ◽  
Cutting Point

Abstract RED CUT COBALT steel is made by adding 5% cobalt to the conventional 18% tungsten -4% chromium-1% vanadium high-speed steel. Cobalt increases hot or red hardness and thus enables the tool to maintain a higher hardness at elevated temperatures. This steel is best adapted for hogging cuts or where the temperature of the cutting point of the tool in increased greatly. It is well adapted for tools to be used for reaming cast-iron engine cylinders, turning alloy steel or cast iron and cutting nonferrous alloys at high speeds. This datasheet provides information on composition, physical properties, and hardness as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: TS-367. Producer or source: Teledyne Vasco.

AISI TYPE H22

Alloy Digest ◽  
1994 ◽  
Vol 43 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Alloying Elements ◽  
Steel Mills ◽  
Temperature Performance ◽  
Aisi Type

Abstract H22 is a tungsten hot work steel with the principal alloying elements of carbon, tungsten, chromium and vanadium. It resists softening at elevated temperatures. This datasheet provides information on composition, physical properties, and elasticity as well as fracture toughness. It also includes information on high temperature performance as well as heat treating and machining. Filing Code: TS-533. Producer or source: Tool steel mills.

AISI TYPE A9

Alloy Digest ◽  
1994 ◽  
Vol 43 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
High Resistance ◽  
Elevated Temperatures ◽  
Cold Work ◽  
Heat Treating ◽  
Steel Mills ◽  
Aisi Type ◽  
Cold Work Tool Steel

Abstract A9 is a medium-alloy, air-hardening type cold work tool steel. It exhibits a high resistance to softening at elevated temperatures. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating and machining. Filing Code: TS-531. Producer or source: Tool steel mills.

AISI TYPE H25

Alloy Digest ◽  
1966 ◽  
Vol 15 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Steel Mills ◽  
Temperature Performance ◽  
Aisi Type ◽  
High Degree

Abstract AISI Type H25 is a high-tungsten hot-work steel having heat resitance. It retains a high degree of working hardness at elevated temperatures. It is recommended for brass extrusion and forging dies, punches, cut-off knives, backet and dummy blocks. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: TS-178. Producer or source: Tool steel mills.

AISI TYPE M1

Alloy Digest ◽  
1977 ◽  
Vol 26 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tool Steel ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
General Purpose ◽  
Heavy Duty ◽  
Steel Mills ◽  
Aisi Type ◽  
Red Hardness

Abstract AISI Type M1 is a general-purpose high-molybdenum, low-tungsten type of high-speed tool steel. It has an excellent combination of cutting ability, toughness and finishing properties. Its cutting ability is good except for heavy-duty, continuous cutting operations where the ultimate in red-hardness is required. Its toughness is as great as that of any other high-speed steel. 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-314. Producer or source: Tool steel mills.

AISI TYPE M7

Alloy Digest ◽  
1987 ◽  
Vol 36 (10) ◽  
Keyword(s):  
Tool Steel ◽  
High Speed ◽  
High Speed Steel ◽  
Heat Treating ◽  
Significant Loss ◽  
Steel Mills ◽  
Aisi Type ◽  
End Mills ◽  
The Many ◽  
Twist Drills

Abstract AISI Type M7 is a molybdenum type of high-speed steel. It is somewhat similar to AISI Type M1 tool steel but with higher percentages of carbon and vanadium to provide an improvement over AISI Type M1 in cutting characteristics without a significant loss in toughness. It is suitable for a wide variety of cutting-tool applications where improved resistance to abrasion is required. The many uses of Type M7 include twist drills, end mills, shear blades, punches, milling cutters, lathe tools, taps and reamers. 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-483. Producer or source: Tool steel mills. See also Alloy Digest TS-468, January 1987.

AISI TYPE L6

Alloy Digest ◽  
1971 ◽  
Vol 20 (1) ◽  
Keyword(s):  
Wear Resistance ◽  
Compressive Strength ◽  
Tensile Properties ◽  
Tool Steel ◽  
Heat Treating ◽  
Steel Mills ◽  
Aisi Type ◽  
Machine Parts ◽  
High Degree

Abstract AISI Type L6 is recommended for tools, dies and machine parts which must develop a rather high degree of hardness, wear resistance and compressive strength combined with toughness. This datasheet provides information on composition, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-232. Producer or source: Tool steel mills.

AISI TYPE S2

Alloy Digest ◽  
1982 ◽  
Vol 31 (12) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
Shock Loading ◽  
Heat Treating ◽  
Medium Size ◽  
Hard Case ◽  
Large Size ◽  
Steel Mills ◽  
Aisi Type

Abstract AISI Type S2 is a water-hardening tool steel with extreme toughness and resistance to shock loading. Even at a hardness of Rockwell C 59-60, it will bend before it breaks. When hardened in medium-size and large-size pieces, it acquires a hard case and a tough core. Sizes under 3/4-inch (19mm) diameter will water harden to the center. The extreme toughness of Type S2 makes it suitable for use in many applications where no other tool steel will hold up. Its many uses include chisels, rivet busters, spike mauls, screw drivers, punches and sledges. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-408. Producer or source: Tool steel mills.

AISI TYPE P20

Alloy Digest ◽  
1982 ◽  
Vol 31 (1) ◽  
Keyword(s):  
Low Temperature ◽  
Tool Steel ◽  
Die Casting ◽  
Heat Treating ◽  
High Quality ◽  
Medium Carbon ◽  
Casting Alloys ◽  
Steel Mills ◽  
Aisi Type ◽  
Quality Tool

Abstract AISI Type P20 is a chromium-molybdenum tool steel of medium carbon content. It usually is supplied in the prehardened condition (about 300 Brinell) so that the cavity can be machined and the mold or die placed directly in service; however, for some uses further treatments are employed. It is produced to high-quality tool-steel standards to permit a high luster to be achieved on the surface of the polished die cavity. P20 is used for molds for plastics and for die-casting dies for zinc and other low-temperature casting alloys. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: TS-393. Producer or source: Tool steel mills.

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