Search Results for grain boundaries

INCONEL ALLOY 601GC is a nickel-chromium-iron alloy with additions of aluminum, zirconium, and nitrogen to resist oxidation and micro-alloy, the last to pin the grain boundaries and prevent grain growth at high temperatures. Maintaining finer grain sizes especially helps low cycle fatigue life. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: Ni-410. Producer or source: Inco Alloys International Inc..

CarTech 347 is a niobium+tantalum stabilized austenitic stainless steel. Like Type 321 austenitic stainless steel, it has superior intergranular corrosion resistance as compared to typical 18-8 austenitic stainless steels. Since niobium and tantalum have stronger affinity for carbon than chromium, carbides of those elements tend to precipitate randomly within the grains instead of forming continuous patterns at the grain boundaries. CarTech 347 should be considered for applications requiring intermittent heating between 425 and 900 °C (800 and 1650 °F). 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: SS-1339. Producer or source: Carpenter Technology Corporation.

Ed Fagan Molybdenum Lanthanum Oxide, often referred to as lanthanated molybdenum, MoLa or ML, is an oxide dispersion strengthened alloy. It is produced by combining small amounts of lanthanum oxide (La2O3) particles with molybdenum. This creates a special stacked fiber microstructure that is stable at temperatures up to 2000 °C (3630 °F). After recrystallization, the elongated grain structure with jagged grain boundaries provides a measurable increase in ductility and creep resistant strength over that seen with pure molybdenum. Ed Fagan Molybdenum Lanthanum Oxide is the preferred material when embrittlement after recrystallization must be avoided. This alloy maintains its dimensional shape stability at high-temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on wear resistance as well as heat treating and machining. Filing Code: Mo-21. Producer or source: Ed Fagan Inc.

CarTech 321 is a titanium-stabilized chromium-nickel austenitic stainless steel that was developed to provide the performance of an 18-8 austenitic stainless steel with improved intergranular corrosion resistance. Since titanium has a stronger affinity for carbon than chromium, titanium carbide tends to precipitate randomly within the grains instead of forming continuous patterns at the grain boundaries. 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: SS-1338. Producer or source: Carpenter Technology Corporation.

SUMITOMO 347AP is similar to what could be called Type 347LN and was developed to prevent polythionic acid cracking in chromium depleted grain boundary areas. The columbium (niobium) content is maintained at a ratio of greater than 15 times the carbon in addition to maintaining very low carbon levels. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on forming, heat treating, and joining. Filing Code: SS-548. Producer or source: Sumitomo Metal USA Corporation.

INCOLOY ALLOY 908 is a nickel-iron alloy developed for applications in the advanced TOKAMAK reactor ITER. The alloy contains no cobalt, a small level of chromium to resist stress assisted grain boundary oxidation (SAGBO) and is stabilized with Cb(Nb), Ti, and Al. This datasheet provides information on composition and tensile properties. It also includes information on heat treating. Filing Code: Ni-446. Producer or source: Inco Alloys International Inc.

CM 186 LC is a rhenium-containing, directionally solidified (DS) superalloy. It has excellent DS castability and above average resistance to grain boundary cracking in complex cored, thin wall turbine airfoils. This datasheet provides information on composition and physical properties as well as creep. It also includes information on casting and heat treating. Filing Code: Ni-450. Producer or source: Cannon-Muskegon 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.

Udimet 720 is a nickel-base alloy used in turbine blade and disk applications requiring high-temperature strength and structural stability. This datasheet provides information on composition microstructure as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as heat treating. Filing Code: Ni-620. Producer or source: Special Metals Corporation.

TMAX520J2B is carburizing steel with cold formability for ease in production. This datasheet provides information on composition and hardness as well as fracture toughness, deformation, and fatigue. It also includes information on heat treating. Filing Code: SA-543. Producer or source: Sanyo Special Steel Company Ltd.

NITRODUR 8507 (34CrAlMo5-10) is one of the Nitrodur family of nitriding steels that are used where high surface hardness and good fatigue strength are required and the material is also subjected to high temperatures. Nitrided surfaces maintain their hardness and strength at operating temperatures of up to approximately 500–550 deg C (932–1022 deg F). This datasheet provides information on composition and tensile properties. It also includes information on surface qualities as well as casting and forming. Filing Code: SA-797. Producer or source: Schmolz + Bickenbach Group.

ArcelorMittal K41 is a ferritic stainless steel with good resistance to pitting corrosion and oxidation to 950 C (1742 F), mostly used as a stable price lower cost substitute for nickel containing austenitic stainless steels in a variety of applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: SS-1091. Producer or source: Arcelor Stainless Processing LLC.

NAS 825 is a corrosion-resistant nickel alloy that has resistance to both oxidizing and reducing environments, and with 42% nickel, the alloy is very resistant to chloride-ion stress-corrosion cracking. 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-694. Producer or source: Nippon Yakin Kogyo Company Ltd.

NITRODUR 8519 (31CrMoV9, 1.8519) is one of the Nitrodur family of nitriding steels that are used where high surface hardness and good fatigue strength are required and the material is also subjected to high temperatures. Nitrided surfaces maintain their hardness and strength at operating temperatures of up to approximately 500–550 deg C (932–1022 deg F). This datasheet provides information on composition and hardness as well as fracture toughness. It also includes information on surface qualities as well as casting and forming. Filing Code: SA-787. Producer or source: Schmolz + Bickenbach Group.

NITRODUR 8524 (8CrMo16, 1.8524) is one of the Nitrodur family of nitriding steels that are used where high surface hardness and good fatigue strength are required and the material is also subjected to high temperatures. Nitrided surfaces maintain their hardness and strength at operating temperatures of up to approximately 500–550 deg C (932–1022 deg F). This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on surface qualities as well as casting and forming. Filing Code: SA-807. Producer or source: Schmolz + Bickenbach Group.

AK Steel 409 Ni is a 11% chromium ferritic stainless steel microalloyed with titanium and nickel. It provides excellent weldability, toughness, and fabricating characteristics superior to those of type 409 stainless steel in thicknesses over 3.05 mm (0.120 in.). This alloy is a cost effective alternative to mild steels and low-alloy steels that also provides superior corrosion and/or oxidation resistance. The recommended maximum service temperature of AK Steel 409 Ni is 730 °C (1350 °F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: SS-1336. Producer or source: AK Steel Corporation.

NAS 335X (UNS N08020) is an iron-nickel-chromium-molybdenum alloy with corrosion resistance for both reducing and oxidizing environments. 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: SS-1146. Producer or source: Nippon Yakin Kogyo Company Ltd.

Alloy 740H (see Alloy Digest Ni-613, September 2003) is a precipitation-hardenable Ni-Cr-Co alloy containing molybdenum and niobium. The primary application for the alloy is boiler tubes for advanced ultra-supercritical steam boilers. This data sheet covers a modification of that alloy to correct two problems, i.e., the eta-phase formation with a loss of impact strength between 750–800 deg C (1382–1472 deg F) and to render the alloy more weldable. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: Ni-716. Producer or source: PCC Energy Group.

Inconel Alloy 783 is an oxidation resistant, low expansion, nickel-cobalt-iron alloy with other additions. The alloy is a three-phase aging alloy that is of interest for close clearance control components in the aerospace arena. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, and machining. Filing Code: CO-95. Producer or source: Special Metals Corporation. Originally published January 1995, revised February 2004.

CARPENTER STAINLESS TYPE 304HN is essentially a high-nitrogen version of AISI Type 304 stainless steel. By means of solid-solution strengthening, the nitrogen provides significantly higher yield strength and tensile strength as annealed than conventional Type 304, without adversely affecting ductility, corrosion resistance or nonmagnetic properties. Its applications include aircraft and aerospace components and marine hardware. 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-368. Producer or source: Carpenter. See also Alloy Digest SS-763, September 1999.