CarTech 316/316L is a chromium-nickel-molybdenum austenitic stainless steel. It is a low-carbon version of the conventional CarTech 316. In this low-carbon austenitic stainless steel, control of carbon to 0.03 % has been shown to minimize carbide precipitation during welding. CarTech 316/316L can be used in the as-welded conditions in a variety of corrosive applications. 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: SS-1353. Producer or source: Carpenter Technology Corporation.

Atlas 316 is a chromium-nickel-molybdenum austenitic stainless steel, second only to Atlas 304 in commercial importance. The molybdenum gives Atlas 316 better overall corrosion resistant properties than type 304 austenitic stainless steel, particularly higher resistance to pitting and crevice corrosion in chloride environments. It is readily brake or roll formed, welded, soldered, and cut by both thermal and mechanical methods. The austenitic structure gives excellent toughness, even down to cryogenic temperatures. Atlas 316L, the low carbon version of Atlas 316, is highly resistant to sensitization (grain boundary carbide precipitation) and so is extensively used in heavy gauge welded components; about 5 mm, 0.2 in., and over. Atlas 316H, with its higher carbon content, has some application at elevated temperatures, as does stabilized type 316Ti. 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 heat treating, machining, and joining. Filing Code: SS-1365. Producer or source: Atlas Steels.

ENDURO 18-8STi is the titanium-type 304 stainless steel stabilized by titanium. It is not made sensitive to intergranular corrosion by heating within the carbide precipitation range. It is recommended for use at temperatures up to 1600 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 high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-149. Producer or source: Republic Steel Corporation.

EMPIRE CF-3 is an austenitic chromium-nickel stainless steel casting alloy recommended for welded fabrications because of freedom from carbide precipitation. 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 casting, heat treating, machining, and joining. Filing Code: SS-161. Producer or source: Stainless steel foundries.

Carpenter Stainless 20Cb-3 is an austenitic stainless steel designed for improved resistance to sulfuric acid. It finds wide use in all phases of the chemical industry. It has good mechanical properties and comparative ease of fabrication. Columbium stabilizes the alloy to minimize carbide precipitation during welding. 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, machining, and joining. Filing Code: SS-182. Producer or source: Carpenter.

EMPIRE CF-3M is a superior stainless steel casting alloy recommended for welded fabrications because of freedom from carbide precipitation. It is equivalent to A. C. I. CF-4M (American Casting Institute designation). 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 casting, heat treating, machining, and joining. Filing Code: SS-61. Producer or source: Stainless steel foundries.

ALLEGHENY LUDLUM 316 and 316L are acid resistant, molybdenum type 18-8 stainless steels. Type 316L is the low carbon grade of Type 316 offering decreased carbide precipitation. This datasheet provides information on composition, physical properties, microstructure, 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-48. Producer or source: Allegheny Ludlum Corporation.

UHB Stainless 44L is a high-strength, corrosion-resistant steel with a duplex structure of about 40% austenite in a ferrite matrix. It is produced with extra-low carbon content for good weldability and good resistance to embrittlement and corrosion induced by carbide precipitation. It has excellent stress-corrosion resistance and an optimum combination of strength and toughness. 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 and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-288. Producer or source: Uddeholm Aktiebolag.

AK Steel Type 304 is a chromium-nickel austenitic stainless steel. It is a variation of the base 18-8 grade, but with higher chromium and lower carbon content. The lower carbon content minimizes carbide precipitation due to welding and reduces its susceptibility to intergranular corrosion. Type 304 is the most versatile and widely used stainless steel grade. It combines good resistance to atmospheric corrosion and to many chemicals, food, and beverages. It has excellent formability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming and joining. Filing Code: SS-1317. Producer or source: AK Steel Corporation. Originally published April 2020, corrected May 2020.

AK Steel Type 304L is a chromium-nickel austenitic stainless steel. It is an extra low-carbon variation of Type 304 with a 0.030% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the “as-welded” condition, even in severe corrosive conditions. In many cases it eliminates the necessity of annealing weldments except for applications specifying stress relief. Type 304L has slightly lower mechanical properties than Type 304. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance, corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-1324. Producer or Source: AK Steel Corporation.

Special Metals Inconel C-276 is a wrought, Ni-Mo-Cr-Fe-W alloy that has excellent corrosion resistance in a wide range of aggressive media. The high molybdenum content makes the alloy especially resistant to pitting and crevice corrosion. The low carbon content minimizes carbide precipitation during welding to maintain resistance to intergranular attack in heat-affected zones of welded joints. 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: Ni-768. Producer or source: Special Metals Corporation.

AK Steel 309S is a chromium-nickel austenitic stainless steel that provides excellent corrosion resistance and heat resistance in addition to good strength at room and elevated temperatures. It is identical to AK Steel 309 except for a lower carbon content that minimizes carbide precipitation and improves weldability. 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-1334. Producer or source: AK Steel Corporation.

HASTELLOY alloy B-2 has outstanding corrosion resistance in the as-welded condition. It is an improved wrought version of HASTELLOY alloy B with the same excellent corrosion resistance as alloy B, but with improved resistance to knife line and heat-affected zone attack. Alloy B-2 resists the formation of grain-boundry carbide precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. This alloy also has excellent resistance to pitting and stress-corrosion cracking. 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: Ni-249. Producer or source: Stellite Division, Cabot Corporation.

EASTERN STAINLESS Type 347 contains an addition of columbium which produces a stabilized type of stainless steel free from the chromium carbide precipitates that cause intergranular corrosion. It is recommended for welded parts which cannot be annealed after welding. It is also used for parts which are intermittently heated and cooled to temperatures between 800 and 1600 F. Its many applications include exhaust manifolds, expansion and high-pressure steam pipes. 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, joining, and surface treatment. Filing Code: SS-390. Producer or source: Eastern Stainless Steel Company.

EASTERN STAINLESS Type 321 is a titanium-bearing steel designed to be free from the harmful chromium carbide precipitation (and associated intergranular corrosion) after welding or after an extended period of time in the sensitizing temperature range (800-1600 F). Type 321 is used primarily within this sensitizing (damaging) temperature range; however, its carbon combines preferentially with titanium leaving chromium in solution to maintain full corrosion resistance. Among its applications are high-temperature steam service, chemical plants and heavy-duty aircraft exhaust manifolds. 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, joining, and surface treatment. Filing Code: SS-396. Producer or source: Eastern Stainless Steel Company.

EASTERN STAINLESS TYPE 348 is a stabilized type of stainless steel free from the chromium carbide precipitates that cause intergranular corrosion. It is recommended for welded components that cannot be annealed after welding. It also is used for parts that are heated and cooled intermittently to temperatures between 800 and 1600 F. Type 348 is stabilized by an addition of columbium. Tantalum is restricted to 0.10% maximum and cobalt is restricted to 0.20% maximum. Because of these restrictions, Type 348 is recommended for use in applications such as those encountered in radioactive service. 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, joining, and surface treatment. Filing Code: SS-447. Producer or source: Eastern Stainless Steel Company.

AISI TYPE 201 MODIFIED is a chromium-nickel-manganese austenitic stainless steel whose composition is closely controlled to provide sufficient austenite stability for service at temperatures as low as 425 F (245 C). In the interest of minimizing sensitization (carbide precipitation) during welding which can result in a loss of low-temperature toughness, carbon in TYPE 201 MODIFIED is specified at 0.03% max. In regular Type 201, a maximum of 0.15% carbon is allowed. This datasheet provides information on composition, physical properties, 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, joining, and surface treatment. Filing Code: SS-476. Producer or source: Allegheny Ludlum Corporation.

Jessop JS alloy 20 was designed primarily for resistance to sulfuric acid attack. It also resists pitting and stress-corrosion cracking. It is columbium-stabilized to minimize carbide precipitation during welding. Often spoken of as one of the Super Stainless Steels, it carries a nickel alloy UNS number. 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: Ni-371. Producer or source: Jessop Steel Company. Originally published April 1989, revised July 1991.

Sandvik 3R60 is an acid resistant austenitic stainless steel. It has a low carbon content to offer decreased carbide precipitation and increased intergranular corrosion resistance. 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, and joining. Filing Code: SS-636. Producer or source: Sandvik.

Remanit 4301 is a general-purpose austenitic stainless steel. It has more chromium and nickel that Type 302, but less carbon in order to reduce chromium carbide precipitation. This grade constitutes slightly more than 25% of all stainless production. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SS-642. Producer or source: Thyssen Stahl AG.