Durnico is a low carbon martensitic steel that is hardenable to reach high strengths, but has better cold working properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming and heat treating. Filing Code: SA-782. Producer or source: Lamineries Matthey SA.

Marvac 300 is a clean high-strength maraging steel capable of 1862 MPa (270 ksi) minimum yield strength. This datasheet provides information on composition, physical properties, 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: Fe-164. Producer or source: Latrobe Specialty Steel Company.

Marvac 250 is a clean high-strength maraging steel capable of 1654 MPa (240 ksi) yield strength. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on forming, heat treating, machining, and joining. Filing Code: Fe-163. Producer or source: Latrobe Specialty Steel Company.

Phytime is a maraging steel with a 2068 MPa (300 ksi) strength and a very high yield strength due to precipitation hardening. The major improvement over Durimphy (see Alloy Digest Fe-140, February 2007) is cleanliness and improved fatigue performance. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: FE-141. Producer or source: Metalimphy Precision Alloys.

Durimphy is a maraging steel with 1724 MPa (250 ksi) tensile strength and a very high yield strength due to precipitation hardening. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: FE-140. Producer or source: Metalimphy Precision Alloys.

VascoMax C-200 is a cobalt-containing maraging steel with cobalt providing the primary strengthening. The number in the alloy name is representative of the ultimate tensile strength expressed in ksi. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fatigue. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: SA-547. Producer or source: Allvac, An Allegheny Technologies Company.

VASCOMAX T-300 is an 18% nickel maraging steel in which titanium is the primary strengthening agent. It develops a tensile strength of about 300,000 psi with simple heat treatment. The alloy is produced by Vacuum Induction Melting/Vacuum Arc Remelting. 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-454. Producer or source: Teledyne Vasco.

INCO Alloy MS 250 is a cobalt-free managing steel with nominal yield strength of 250,000 psi, fully heat-treated. Strengthening results from intermetallic-compound precipitation in a low-carbon martensitic matrix. It has excellent weldability. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-426. Producer or source: Inco Alloys International Inc..

CARPENTER NIMARK 300 is a vacuum-melted, low-carbon nickel-cobalt-molybdenum maraging steel that develops yield strengths in excess of 270,000 psi (1862 MPa) by simple low-temperature aging at 900 F (482 C) following a solution anneal. It is readily weldable and exhibits good ductility at high strength levels and excellent notch ductility. Its many uses include aircraft structural assemblies, pressure vessels, shafting, bolts and fasteners, and rocket motor cases. 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-423. Producer or source: Carpenter.

VascoMax T-200 is an 18% nickel maraging steel with titanium as the primary strengthening agent and containing no cobalt. It is double vacuum melted to assure high purity which is essential for optimum mechanical properties. Price stability is an advantage with titanium-strengthened maraging steels, as compared with the price fluctuations that can occur with the cobalt-strengthened steel. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. 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-422. Producer or source: Teledyne Vasco.

CARPENTER NIMARK 250 is a vacuum-melted, low-carbon nickel-cobalt-molybdenum maraging steel in which yield strengths in excess of 240,000 psi can be developed by a simple aging treatment following a solution anneal. 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: SA-417. Producer or source: Carpenter.

VascoMax T-250 is an ultra-high-strength steel that delivers the high strength (250 ksi tensile strength) and toughness of VascoMax 250 (Alloy Digest SA-142, March 1963). Yet VascoMax T-250 contains no cobalt and less molybdenum (both strategic elements) than the standard grade. In addition, the new grade provides higher ductility and toughness. VascoMax T-250 is recommended for aerospace structures, pressure vessels, shafting, bolts, and fasteners. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. 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-387. Producer or source: Teledyne Vasco.

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 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.

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.

NIMARK 300 is a vacuum melted low carbon, 18% nickel alloy steel which attains yield strengths in excess of 270,000 psi. It is recommended for high strength, shock resisting applications. 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-254. Producer or source: Carpenter.

VascoMax 350 CVM is an ultra-high-strength steel responding to a maraging heat treatment. It has superior notch toughness and ductility at the high yield strength level of 340,000 psi and above. It is recommended for aerospace and rocket equipment and structures. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-251. Producer or source: Teledyne Vasco.

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.

UDIMAR B-300 is an 18% nickel maraging steel having excellent toughness and ductility at high strength levels. It is a fabricable and weldable ultra-high strength alloy steel combining the mechanical properties derived from precipitation hardening and martensitic transformation. It has increased cobalt content compared with UDIMAR B-250 (Alloy Digest SA-206, February 1967). This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness, creep, 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-244. Producer or source: Special Metals.

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.