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.

UNIMAR 250 is a maraging alloy steel having high strength, good notch toughness, excellent cryogenic properties and deep hardenability. It is recommended for pressure vessels, solid-fuel rocket cases and pressure bottles, landing-gear components, processing equipment operating in the temperature range of 300 to 600 F, and components for spacecraft, jet engines and gas turbines. 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 and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-304. Producer or source: Cyclops Corporation.

Republic RSM-300 alloy is an 18% nickel-cobalt-molybdenum age-hardening steel designed to develop up to 300,000 psi yield strength with good toughness. It is recommended for landing gears extrusion dies, rocket motor cases, high-strength bolts, etc. 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, and corrosion resistance as well as heat treating, machining, joining, and surface treatment. Filing Code: SA-242. Producer or source: Republic Steel Corporation.

REPUBLIC RSM 250 is an 18% nickel-cobalt-molybdenum age-hardening steel designed to develop 250,000 psi yield strength with good toughness. It is recommended where a combination of strength, toughness and notch resistance is required such as aircraft landing gears and jet engine components. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-250. Producer or source: Republic Steel Corporation, Titanium Division.

G.110 is an 18% nickel alloy steel, possessing an excellent combination of toughness and ductility at yield strength levels of 250,000 psi. The strength developed is independent of mass effect and rate of cooling, and is achieved by a simple aging treatment. The alloy is recommended for applications such as rocket motor cases and accessories, bolts and fasteners and aircraft structural components- particularly landing gear. 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, joining, and surface treatment. Filing Code: SA-225. Producer or source: Jessop-Saville Ltd, Brightside Works.

A-L 18NiCoMo(250) 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 corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-137. Producer or source: Allegheny Ludlum Corporation.

ALMAR 25 is a maraging alloy steel having an excellent combination of strength and toughness particularly in the presence of notches or cracks. It is recommended for applications such as fuel rocket cases and aircraft landing gears. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-154. Producer or source: Allegheny Ludlum Corporation.

ALMAR 18 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 or cracks. It is recommended for applications such as solid fuel rocket cases and aircraft landing gears. It is supplied in three different compositions to produce yield strengths from 200,000 to 280,000 psi. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. 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-156. Producer or source: Allegheny Ludlum 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.

Ferrium S53 was developed for use as a structural stainless steel for aircraft landing gear. S53 has a corrosion resistance equivalent to 15-5PH H900, strength equivalent to or better than 300M (AMS 6257A) and SAE 4340 (see Mechanical Properties), optimum microstructure features for maximum fatigue resistance, and a surface hardenability equal to or greater than 67 HRC for wear and fatigue. Please see updated designation and information on this alloy in Alloy Digest SA-589, December 2008. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-942. Producer or source: QuesTek Innovations, LLC. Originally published October 2005, revised June 2008, updated December 2008.

Ferrium S53 was developed for use as a structural corrosion resistant steel for aircraft landing gear. S53 has a corrosion resistance equivalent to 440C, strength equivalent to or better than 300M (AMS 6257A) and SAE 4340 (see Mechanical Properties), optimum microstructure features for maximum fatigue resistance, and a surface hardenability equal to or greater than 67 HRC for wear and fatigue. This datasheet is an update to Alloy Digest SS-942 and SS-1003. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating and machining. Filing Code: SA-589. Producer or source: QuesTek Innovations, LLC.

AerMet 100 alloy possesses a combination of high strength, hardness, toughness and good resistance to stress-corrosion from chlorides. It can be used for many aerospace applications such as landing gear and fasteners. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on heat treating. Filing Code: FE-107. Producer or source: Carpenter.

Lescalloy Hy-Tuf Vac-Arc is vacuum arc remelted. This high-strength steel is used for landing gear, flap tracks, and structural applications. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-499. Producer or source: Latrobe Steel Company.

Nicomet 1 is a copper-nickel-tin alloy that has high strength because of spinodal decomposition in heat treatment. The alloy could replace aluminum and manganese bronzes. A typical application utilizes both the good antifriction and high strength properties. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on wear resistance as well as heat treating. Filing Code: CU-652. Producer or source: Anchor Bronze & Metals, Inc.

Nicomet 2 is a copper-nickel-tin alloy that has high strength because of spinodal decomposition. The alloy has good antifriction properties. Nicomet 2 could replace some beryllium-copper alloys. An example application for the alloy is a sleeve bearing. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on wear resistance as well as heat treating. Filing Code: CU-653. Producer or source: Anchor Bronze & Metals, Inc.

AMS 4880-C95510 is a nickel-aluminum bronze casting useful for bushings and bearings. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on machining. Filing Code: Cu-895. Producer or source: Concast Metal Products Company.

LESCALLOY 300M VAC ARC is a low-alloy steel with an excellent combination of high hardenability and high strength coupled with good ductility and good toughness. Its tensile strength ranges from 280,000 to 300,000 psi. It is produced by the vacuum consumable electrode melting process to provide optimum cleanliness and preferred ingot structure. Its applications include aircraft components, pressure vessels and fasteners. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-321. Producer or source: Latrobe Steel Company. Originally published March 1976, revised February 1993.

Nibron Special is an extra high-strength nickel bronze that is corrosion resistant in both marine environments and industrial media. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as machining and joining. Filing Code: Cu-844. Producer or source: Columbia Metals Ltd.

Tricent is an alloy steel offering a combination of hardenability, ductility and toughness at tensile strengths up to 300,000 psi. It is recommended for aircraft components, pressure vessels, fasteners, gears, etc. 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-193. Producer or source: Midvale-Heppenstall Company.

Concast C95500 is a cast nickel-aluminum bronze alloy. Aluminum bronze is the highest strength standard copper-based alloy. The nickel content in C95500 greatly enhances its mechanical strength, and wear and corrosion resistance, making it suitable for heavyduty applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance as well as machining and joining. Filing Code: Cu-900. Producer or source: Concast Metal Products Co..