Austral Wright 17-4PH (UNS S17400) is a precipitation hardening stainless steel which has extremely high strength and hardness, combined with good ductility and toughness. It has excellent corrosion resistance, approaching that of type 304 austenitic stainless steel. Designers and engineers often choose Austral Wright 17-4PH for its high strength, with corrosion resistance superior to most of the other high strength steels. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: SS-1352. Producer or source: Austral Wright Metals.

Mecasteel 17-4 is a precipitation hardening grade with good toughness and corrosion 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, and joining. Filing Code: SS-1181. Producer or source: Industeel USA, LLC.

UGI 4542 AIR is a martensitic precipitation hardening stainless steel with strong corrosion resistance and high mechanical performance. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1300. Producer or source: Schmolz + Bickenbach USA Inc..

Allegheny Ludlum AL 17-4 Precipitation Hardening Alloy is a chromium-nickel-copper stainless steel. It maintains high strength to about 600 F (316 C) and it exhibits a moderate level of corrosion resistance. 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 joining. Filing Code: SS-497. Producer or source: Allegheny Ludlum Corporation.

CRUCIBLE 17Cr-4Ni SUPER-X is a precipitation-hardening martensitic stainless steel which develops high strength and hardness after relatively simple heat treatment. 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 high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-521. Producer or source: Crucible Specialty Metals Division, Colt Industries.

RA17-4 is a corrosion-resistant age-hardening martensitic stainless steel with high strength obtained by a simple low-temperature heat treatment. 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 forming, heat treating, and joining. Filing Code: SS-963. Producer or source: Rolled Alloys.

Virgo 17.4 PH is a 17Cr-4Ni-3Cu-0.3% Cb alloy that is precipitation hardening. It is martensitic and combines high mechanical properties with corrosion resistance. 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, and joining. Filing Code: SS-1145. Producer or source: Industeel USA, LLC.

Ugima 630 is an age-hardening martensitic stainless steel with improved machinability. 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, and joining. Filing Code: SS-1199. Producer or source: Schmolz + Bickenbach USA Inc..

17Cr-4Ni EZ is a precipitation hardening stainless steel offering engineers and designers a wide selection of strength and hardness levels. A simple one-step aging treatment provides end users a unique combination of strength, toughness, and corrosion resistance. 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 low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-551. Producer or source: AL Tech Specialty Steel Corporation.

Carpenter Project 70+ Custom 630 is a modified version of conventional stainless steel Type 630 (17Cr-4Ni) with improved machinability. The alloy has good fabrication characteristics and can be age hardened by a single-step, low-temperature treatment. See also Carpenter Custom 630, Alloy Digest SS-258, revised December 2000, and Carpenter Project 70 Stainless Custom 630, Alloy Digest SS-732, November 1998. This datasheet provides information on composition and physical properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SS-886. Producer or source: Carpenter Specialty Alloys.

UNILOY 17-4 is a unique stainless steel. It can be annealed (solution treated) to produce a martensite-austenite mixture and then aged to various levels of hardness and strength. It has high mechanical properties including good strength at both sub-zero and elevated temperatures. Its corrosion resistance is excellent. Its many applications include gears, splines, shafts, valves, fasteners and couplings. 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 corrosion resistance as well as heat treating, machining, and joining. Filing Code: SS-397. Producer or source: Cyclops.

JESSOP JS17Cr-4Ni is a martensitic, precipitation-hardening chromium-nickel-copper stainless steel. It provides an excellent combination of high strength and hardness, short-time low-temperature precipitation hardening and good mechanical properties at temperatures up to 600 F (316 C). Its corrosion resistance is quite good but inferior to lower strength grades produced for corrosion-resistance applications. JS17Cr-4Ni is used widely for critical applications in the aerospace, chemical, food processing and other industries. 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 corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-412. Producer or source: Jessop Steel Company.

Ferralium 255-3AF is a modification of Ferralium 255 (see Alloy Digest SS-481, January 1987), one of the early superduplex stainless steels. The 255 alloy has been modified over time with special chemistry, heat treatment, and production methods. This version is the age-hardened grade, or a Stamicarbon grade, and is supplied only in bar form. 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 and machining. Filing Code: SS-1007. Producer or source: Langley Alloys.

Ferralium 255-FG46 is a cold work hardened fastener grade with a pitting resistance equivalent number (PREN) of 40 minimum. 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 and machining. Filing Code: SS-983. Producer or source: Langley Alloys.