ATI 309S (UNS S30908)

Alloy Digest ◽  
2020 ◽  
Vol 69 (5) ◽  

Abstract ATI 309S (UNS S30908) is a chromium-nickel austenitic stainless steel that is typically used for elevated-temperature applications. The alloy’s high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic alloys such as Type 304. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SS-1318. Producer or source: ATI.

Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  

Abstract ATI 310S is a 25Cr-20Ni austenitic stainless steel that is typically used for elevated temperature applications. Owing to its higher chromium and nickel contents the alloy provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic stainless steels such as Type 304. 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-1328. Producer or source: ATI.


Alloy Digest ◽  
2021 ◽  
Vol 70 (4) ◽  

Abstract AK Steel 309 is a chromium-nickel austenitic stainless steel. It is typically used for elevated temperature applications. Its high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic stainless steels, such as type 304. 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-1333. Producer or source: AK Steel Corporation.


Alloy Digest ◽  
2003 ◽  
Vol 52 (12) ◽  

Abstract Type 309 (UNS S30900) is an austenitic chromium-nickel stainless steel widely used for elevated-temperature services. It has a good combination of oxidation resistance and corrosion-resisting properties. The alloy is essentially nonmagnetic when annealed and become slightly magnetic when cold worked. It is intended primarily for high-temperature applications at 816 deg C (1500 deg F) or higher where resistance to oxidation and/or corrosion is required. 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 forming, heat treating, and joining. Filing Code: SS-896. Producer or source: J & L Specialty Steel Inc.


Author(s):  
P. J. Maziasz

Molybdenum is added to improve elevated temperature strength and corrosion resistance for type 316 compared to type 304 stainless steel. Strong carbide forming elements, like titanium and niobium, are also added to these steels to improve creep strength and reduce stress corrosion cracking, as well as to improve resistance to irradiation induced swelling and helium embrittlement. This work shows that fairly pure TiC and NbC form in Ti- and Nb- stabilized versions of type 304 stainless steel (types 321 and 347, respectively); however, the Ti-rich MC dissolves Mo considerably whereas the NbC remains compositionally quite pure when these phases form in Ti- and Nb- modified type 316 stainless steels, respectively.


Alloy Digest ◽  
1979 ◽  
Vol 28 (4) ◽  

Abstract Copper No. 803 is cast copper containing silver to raise its softening temperature and improve its elevated-temperature properties. It has low room-temperature strength with medium-to-good ductility. It is characterized by a good combination of thermal and electrical conductivity and is resistant to corrosion. These characteristics make it highly suitable for many applications requiring good conductivity and/or corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Cu-370. Producer or source: Copper alloy foundries.


Alloy Digest ◽  
1980 ◽  
Vol 29 (9) ◽  

Abstract RA 446 is a high-chromium ferritic heat-resisting alloy with excellent resistance to oxidation and to various forms of hot corrosion. The alloy is used most commonly for service between 1500 and 2200 F (815 and 1200 C), although its elevated-temperature strength is quite low. Among its many applications are recuperators, combustion chambers, kiln linings, stack dampers and oil-burner components. 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, joining, and surface treatment. Filing Code: SS-375. Producer or source: Rolled Alloys Inc..


Alloy Digest ◽  
1986 ◽  
Vol 35 (3) ◽  

Abstract Copper No. C80500 is cast copper containing silver to raise its softening temperature and improve its elevated-temperature properties. It is deoxidized with boron. It has low room-temperature strength with medium-to-good ductility. It has good thermal and electrical conductivies and is resistant to corrosion and oxidation. These characteristics make it highly suitable for applications that require good conductivity and resistance to corrosion and oxidation. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: Cu-507. Producer or source: Copper alloy foundries.


Alloy Digest ◽  
2007 ◽  
Vol 56 (4) ◽  

Abstract AL 332Mo alloy is an austenitic stainless steel with relatively high chromium and nickel levels for strength, and corrosion and oxidation resistance. The alloy contains a moderate addition of molybdenum for resistance to aqueous corrosion and of manganese for resistance to oxidation in air containing water vapor. A small amount of niobium (columbium) is added for resistance to sensitization and resultant susceptibility to intergranular corrosion. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and bend strength. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-989. Producer or source: Allegheny Ludlum.


Alloy Digest ◽  
1969 ◽  
Vol 18 (4) ◽  

Abstract AISI Type 440B is a hardenable high-carbon high-chromium steel recommended stainless for cutlery, valve parts, ball bearings, pivot pins, etc. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-223. Producer or source: Stainless steel mills.


Alloy Digest ◽  
2003 ◽  
Vol 52 (2) ◽  

Abstract Carpenter Project 70+ Type 304/304L is a modified version of Type 304/304L stainless steel with improved machinability when compared to conventional 304 (Alloy Digest SS-418, revised September 1997) and 304L (Alloy Digest SS-513, revised November 1997). The alloys are nonhardenable austenitic chromium-nickel steels and are good general-purpose materials for simple and complex parts. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-875. Producer or source: Carpenter Specialty Alloys.


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