AISI 4340 steel is a tough, shock resisting, oil hardening nickel-chromium-molybdenum steel. In the heat treated condition it has the highest combination of tensile and endurance strengths along with ductility. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-14. Producer or source: Alloy steel mills and foundries. Originally published February 1954, revised March 1965.

AISI 9840 is a nickel-chromium-molybdenum steel very similar to AISI 4340 with lower nickel and slightly higher manganese. In the heat treated condition it has good combination of strength, fatigue resistance, toughness and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-55. Producer or source: Alloy steel mills and foundries.

HI-QUA-LED 43L40 is a free-machining nickel, chromium, molybdenum alloy steel having high hardenability. It is oil hardening and exhibits combination of high tensile and endurance strengths along with ductility and toughness. 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: SA-191. Producer or source: Alco Products Inc., Forge & Spring Division.

Ferrovac-4340 is a vacuum melted chromium, nickel, molybdenum alloy steel having high endurance limit, high notched tensile strength, and high transverse ductility. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-68. Producer or source: Vacuum Metals Corporation.

LSS 2714 is a hot-work steel with resistance to softening and good toughness. 2714HT is the same steel available as aged. The alloy is used to replace AISI 4140 and 4340. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating and machining. Filing Code: TS-668. Producer or source: Latrobe Specialty Steel Company.

Republic HP 9-4-45 is a heat treated alloy steel capable of developing a yield strength of 250,000 psi with superior toughness characteristics. It is designed for sheet and thin-walled forged sections. It is also designed for heavy forging where an isothermal heat treatment is employed. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-179. Producer or source: Republic Steel Corporation, Titanium Division.

NITRONIC 30 is a nitrogen-strengthened stainless steel with a good combination of strength, corrosion and wet abrasive wear resistance and economy. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, and deformation. It also includes information on corrosion and wear resistance as well as forming, heat treating, and joining. Filing Code: SS-533. Producer or source: Armco Advanced Materials Corporation.

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.

Cabot ESR HY 140 is a 5Ni-Cr-Mo-V alloy steel produced by electric-furnace melting, vacuum degassing and electroslag remelting (ESR) by use of small-heat-size technology. Electroslag refining improves cleanliness and lowers the sulfur content to provide improved isotropy, ductility and toughness. This steel is capable of developing a minimum yield strength of 140,000 psi with an optimum combination of hardenability, temperability, weldability, formability, toughness and fatigue properties. It meets many special requirements for petrochemical applications. This datasheet provides information on composition, physical properties, and elasticity as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-358. Producer or source: Cabot Corporation, Machinery Division.

VascoDyne is a high-speed steel for the metal-cutting industry. This steel is designed to give equivalent or better performance than many grades of high-speed steel now in use and at a lower cost. VascoDyne provides improved hot hardness and wear resistance over conventional high-speed steels such as AISI Types, M1, M7 and M10. VascoDyne is recommended as an excellent alternate to the traditional high-speed steels used in cutting-tool applications. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and machining. Filing Code: TS-431. Producer or source: Teledyne Vasco.

INGERSOLL-RAND ESR HY 140 is a 5Ni-Cr-Mo-V alloy steel produced by electric-furnace melting, vacuum degassing and electroslag remelting (ESR) by use of small-heat-size technology. Electroslag refining improves cleanliness and lowers the sulfur content to provide improved isotropy, ductility and toughness. This steel is capable of developing a minimum yield strength of 140,000 psi with an optimum combination of hardenability, temperability, weldability, formability, toughness and fatigue properties. It meets many special requirements for petrochemical applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-393. Producer or source: Ingersoll-Rand Oilfield Products Company.

LESCALLOY HP 9-4-30 VAC-ARC is a low-alloy, high-strength steel with a high nickel content to promote toughness. It was designated for high hardenability and good weldability. It is produced by the vacuum-consumable-electrode process to insure cleanliness and provide a preferred ingot structure. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-343. Producer or source: Latrobe Steel Company.

USS STRUX is an alloy steel designed for use in the heat treated condition at a minimum tensile strength of 280,000 psi. At this very high strength level the steel has adequate ductility and notch toughness for critical applications. This datasheet provides information on composition and tensile properties. Filing Code: SA-100. Producer or source: United States Steel Corporation.

REPUBLIC HP 9-4-30 is a heat-treated alloy steel capable of developing minimum yield strengths up to 190,000 psi with superior toughness characteristics. It is designed for sheet, plate, and forging applications, and can be welded in the heat-treated condition. The good thermal stability of this alloy makes it attractive for applications requiring long-time exposures at temperatures up to 700 F. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-278. Producer or source: Republic Steel Corporation.

VASCO X-2 CVM is a steel designed especially for gears and shafts where a high surface hardness (carburized) and superior hot hardness are desired. It is a vacuum-melted steel and provides an excellent combination of high strength, good toughness and high fatigue strength. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-261. Producer or source: Teledyne Vasco.

Carpenter Stainless No. 2 Mold Steel is a 13% chromium steel ideally suited for long-run molding jobs. It is specifically used for protection against the following corrosive conditions: (1) Rusting of cavities when machines are shut down or molds are stored, (2) Rusting of mold cavities when using corrosive plastics, and (3) Corrosion problems when molds are used in hot, humid climates. In addition to resisting the above corrosive conditions, users have found that this steel has many other cost-reducing advantages for applications where corrosion is not involved. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-367. Producer or source: Carpenter.

ALMAR 300 Alloy is a vacuum-melted ultra-high-strength steel. The annealed structure of this alloy is essentially a carbon-free, iron-nickel martensite (a relatively soft Rockwell C 28) that can be strengthened by cold working and elevated-temperature (900-950 F) age hardening to useful yield strengths as high as 300,000 psi. The unique properties of this alloy make it suitable for a wide range of section sizes. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-349. Producer or source: Allegheny Ludlum Corporation.

UNIMAR 300K is an 18% nickel maraging steel designed for tooling applications which require high strength with good toughness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on low and high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: SA-266. Producer or source: Cyclops Corporation.

ALMAR 20 is a high nickel martensitic steel which is strengthened by precipitation hardening. It has excellent combination of strength and toughness particularly in the presence of notches and cracks. It is recommended for applications such as solid fuel rocket cases and aircraft landing gear. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-162. Producer or source: Allegheny Ludlum Corporation.

UNIMACH AF 1410 is a high-strength, high-fracture-resistant iron-based alloy (steel). It exhibits superior toughness over all other high-strength steels and has the highest combination of strength and toughness available in any high-strength alloy. It is recommended for consideration in a wide range of highly-stressed, fracture-critical applications such as airframe structural components, landing gear components and light armor plate. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-398. Producer or source: Cyclops Corporation.