ALLEGHENY LUDLUM TYPE 439 is a stainless steel with a high resistance to chloride stress-corrosion cracking. It also has a high level of general resistance in steam and fresh-water environments. Its high level of chromium provides resistance to sulfidation and oxidation. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-470. Producer or source: Allegheny Ludlum Corporation.

ALLEGHENY TYPE 439 is a ferritic stainless steel designed for its weldability and for service in mild corrosive environments. 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, and joining. Filing Code: SS-274. Producer or source: Allegheny Ludlum Corporation.

AL 468 is an 18% chromium stainless steel with dual stabilization by titanium and columbium. Small angular carbonitrides of both titanium and columbium are randomly dispersed, but develop improved surface quality, strength, and oxidation resistance when compared to Type 439. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-597. Producer or source: Allegheny Ludlum Corporation.

AL 439HP is similar to the popular alloy Type 439, except for its very low carbon content. The low carbon content of AL 439HP enhances its formability and intergranular 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-829. Producer or source: Allegheny Ludlum Corporation.

ATI 436S is a ferritic stainless steel stabilized with titanium. It is superior to ATI Type 409 and 430 in general and pitting corrosion resistance. The ATI 436S alloy exhibits machining, welding, and forming characteristics similar to those of other stabilized, ferritic stainless steels. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1139. Producer or source: Allegheny Ludlum.

ATI 436S ferritic stainless is a single phase alloy in the same family as Type 409 and is common to many of those properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SS-1244. Producer or source: Allegheny Ludlum.

ALLEGHENY LUDLUM AL 2205 ALLOY is in the family of duplex alloys in which added nitrogen significantly improves corrosion resistance, especially in the welded condition. The microstructure consists of a balanced mixture of austenitic and ferritic phases. Its corrosion resistance to many environments is superior to Types 316 or 317 and it has a yield strength more than double that of AISI conventional austenitic stainless steels. 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, and machining. Filing Code: SS-462. Producer or source: Allegheny Ludlum Corporation.

Allegheny Ludlum 316 and 316L are corrosion resistant, molybdenum bearing austenitic stainless steels. Type 316L is the low carbon grade of type 316 offering decreased carbide precipitation. The MINIMISER form is an improved machinability version with a change in the sulfur composition, still maintaining the dual certification capability of the base type 316/316L grades. Like standard 316 and 316L stainless steels, MINIMISER 316/316L is more resistant to acids and pitting/crevice corrosion than the molybdenum-free 18-8 type stainless steels. This datasheet provides information on composition, physical properties, microstructure, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-776. Producer or source: Allegheny Ludlum Corporation.

Allegheny Ludlum AL 453 Alloy is a ferritic stainless steel with low levels of rare earth metals added to reduce the growth rate of oxides at high temperatures. The enhanced oxidation resistance makes it applicable to high-temperature applications. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and machining. Filing Code: SS-958. Producer or source: Allegheny Ludlum.

Allegheny Ludlum AL 304DA is a composite of three plies consisting of carbon steel surrounded on both sides with type 304 stainless steel. This combination supplies corrosion resistance with good ductility for applications like cookware. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, joining, and surface treatment. Filing Code: SS-780. Producer or source: Allegheny Ludlum Corporation.

ALFA I and ALFA II ALLOYS are 13% chromium ferritic stainless steels with 3 and 4% aluminum, respectively. These steels have superior oxidation resistance. Being ferritic they are not hardenable by heat treatment. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as creep. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: SS-525. Producer or source: Allegheny Ludlum Corporation.