Rearrange individual pages or entire files in the desired order. However, chemical composition limits vary with carbon, aluminum and titanium. To assess the effects of surfac e condition, the dissimilar metal weld ments and nonwelded specimens in. Incoloy alloy 800h incoloy al 800ht incoloy alloy 825 incoloy. Incoloy 800ht, also known as alloy 800ht, is designated as uns n08811 or din w. Incoloy 800h and 800ht,as the same to the incoloy 800,are also austenitic, solidsolution alloys. Files or is forced to file bankruptcy or enters reorganization proceedings. A nickelcopper alloy with high strength and excellent corrosion resistance in a range of media, including sea water, hydrofluoric acid, sulfuric acid and alkalies. Metal supplier, metal distributor of nickel alloys. The three alloys have nearly identical chemical composition limits.
Incoloy 800 a material having attrac tive intermediate temperature prop erties and to themselves, were exam ined in the surface ground condition. Alloy 800 800h 800at data sheet uns n08800 uns n08801 uns n08811 alloy 800 uns n08800, alloy 800h uns n08810 and alloy 800at uns n08811 are nickelironchromium alloys. These alloys are used in chemical and petrochemical processing, in. Two forms of this alloy, designated as 800 and 800h, are. As table 1 shows, the base elements in all three alloys are the same. Corrosion of incoloy 800 and nickel base alloy weldments. Incoloy 800 i800 monel 400 m4 incoloy 825 i825 monel 400hf m4s monel 400fhf m4f monel 500 m5 f51 d monel 500hf m5s monel 500fhf m5f 7 how to orderspecify forged steel valves section. Alloy 800hht was intended for high temperature structural applications.
Jul 03, 20 incoloy alloy 800 is an alloy of nickel, iron and chromium. Alloys 800h and 800ht can be easily welded and processed by standard shop fabrication practices. A nickelironchromium alloy with good strength and excellent resistance to oxidation and carburization in hightemperature atmospheres. Several other alloy manufacturers entered the alloy.
Thre e high temperature alloys and in conel 82 were employed as filler met als. These generally have high resistance towards carburization and oxidation. Incoloy alloy 800ht is a controlled composition derivative of incoloy alloy 800h uns n08810 and is used for the same creep resistant applications, however the combined effects of mechanical and. Since alloys 800h and 800ht were developed primarily for hightemperature strength, corrosive environments to which these grades are exposed normally involve high temperature reactions such as oxidation and carburization. Alloy 800 800h 800at data sheet jacquetmetalservice. Incoloy alloy ma956 10 000 100 000 100 10 1 10 100 rupture life, hours stress, mpa 0. Free pdf compressor is a free pdf compression software to enable you to effectively reduce the size of pdf files. Incoloy 800ht has further modifications to the combined titanium and aluminum levels. Other characteristics of the alloy are good strength, and high resistance to oxidizing, reducing and aqueous environments. Nickelironchromium alloys designed to resist oxidation and. Pdf effects of heat input on the mechanical and metallurgical. Effect of exposure period and temperature on the corrosion of.
Avoid crevices it is wellrecognised that butt welds should be fullpenetration welds to provide optimum strength. Uns n08810 uns n08811 incoloy 8incoloy 800 h is an ironnickelchromium. Specialty metal supplier that offers exotic alloys like hastelloy, incoloy, monel and duplex stainless in plate, sheet, bar, pipe, and tubing. It also resists corrosion by many aqueous environments. This alloy performs best when welding nickelchromeiron alloys required to maintain strength and oxidation resistance above 1500of.
Incoloy alloy 800ht is a controlled composition derivative of incoloy alloy 800h uns n08810 and is used for the same creep resistant applications, however the combined effects of mechanical and thermal processing of the alloy permit higher design stresses to be incorporated than are permitted for the conventional alloy. Incoclad 671 800ht is available as extruded or coldsized tubing in a range of diameters. An investigation of weld cracking in alloy 800 american welding. The tensile strength, hardness, toughness, hightemperature tensile strength at 750c, hot corrosion properties, fractography and ageing properties were analyzed and the results are discussed.
Haynes 230 were similar, about 50% greater than for incoloy 800h and with. Pdf mechanical and metallurgical characterization of laser. These alloys are best machined in the colddrawn or cold alloy 800ht n08811 32. It is set to be another busy week here at alloy wire international hq, with orders for our wire coming in from all over the world, logistics remaining strong and. Tensile strength the tensile strength ranges shown on our data sheets are typical for each alloy for the specified standard condition of supply.
The strength of 800hat is achieved by controlled levels of carbon, aluminum and. Alloy 800, 800h, and 800ht are nickelironchromium alloys with good strength and excellent resistance to oxidation and carburization in hightemperature. Studies of high temperature sliding wear of metallic. Mega mex international credit and security agreement. The three alloys have nearly identical chemical composition. Aalco, founded in 1964, is today standard stock and the uk. Pdf corrosion behaviour of alloy 800h in low density. Used in chemical and petrochemical processing, in power plants for superheater and reheater tubing, in industrial. Incoloy 800h and incoloy 800ht, were developed to control the carbon content and grain size to optimize stress rupture properties. Software is simple and easy to use, select an existing pdf file, and hit button compress, a compressed pdf. Alloy 800 offers general corrosion resistance to many aqueous media and, by virtue of its content of nickel, resists stress corrosion cracking. Incoloy alloy 800 incoloy alloy incoloy alloy 825 incoloy alloy 925 density no. The three nickel steel alloys are identical in composition except for the.
Alloy 800, 800h, and 800ht tubes are nickelironchromium alloys with good strength and excellent resistance to oxidation. The product is supplied in the solutiontreated condition. Materials and methods incoloy 800ht plates of dimension 150. However, chemical composition limits vary with carbon, aluminum and. Examples are incoloy alloys 800ht and 803 and cast alloys such as hk40, hp, and hp45 modified. It is set to be another busy week here at alloy wire international hq, with orders for our. The three nickel steel alloys are identical in composition except for the higher level of carbon in alloy 800h, and the addition of up to 1. Since 1990, supplying and distributing exotic stainless steels, nickel alloys, duplex stainless, super duplex and other superalloys has been and still remains mega mexs core competency. Has anyone found, or done themselves, the extrapolation for modulus of elasticity values on incoloy 800ht material over 1500f. These generally have high resistance towards carburization and oxidation in exposure to high temperature. The top countries of suppliers are india, china, from. This alloy performs best when welding nickelchromeiron alloys.
Titanium nitrides, titanium carbides, and chromium carbides normally appear in the alloys microstructure. Download fda statement concerning the use of stainless steels as food contact surfaces of equipment. The top countries of suppliers are india, china, from which the percentage of incoloy 800 sheet supply is 1%, 99% respectively. Alloy 800 is an ironnickelchromium alloy with moderate strength and good resistance to oxidation and carburization at elevated temperatures. Incoloy 800ht,alloy 800ht,incoloy 800 ht,alloy 800 ht,incoloy. In scwo systems, nibased alloys 625, 825, and 800 are also widely employed for manufacturing reactors and heat exchanger pipes. Effect of exposure period and temperature on the corrosion. Incoloy alloy 800ht incoloy 800ht corrotherm international. Alloy 800 800h 800at data sheet uns n08800 uns n08801 uns n08811 alloy 800 uns n08800, alloy 800h uns n08810 and alloy 800at uns n08811 are nickelironchromium alloys designed to resist oxidation and carburization at elevated temperatures through 1 900 f. Pdf in this work, microstructural characterization and mechanical properties of p91 and incoloy 800ht dissimilar laser beam welded joint were. Incoloy 800ht,alloy 800ht,incoloy 800 ht,alloy 800 ht. An investigation of weld cracking in alloy 800 hot cracking susceptibility is associated with heattoheat variations in silicon and titanium by j. In such an event, mega mex reserves the right to take all reasonably necessary actions to cover its interest and obtain commercially equivalent oods. The pigtail material was incoloy 800ht uns 08811, which is the industry standard for pigtail construction.
Aalco, founded in 1964, is today standard stock and the uks. Several studies have reported the corrosion behavior of nibased. Unlike conventional melted alloys, this permits oxide dispersion strengthening. Mega mex is a metal supplier of industrial metal products including stainless steel, carbon steel, nickel alloys, aluminum, copper, brass and bronze in all astm grades. This is achieved by close control of carbon, aluminum and titanium contents in conjunction with a hightemperature anneal.
Incoloy 800 was the first of these alloys and it was slightly modified into incoloy 800h. Corrosion of incoloy 800 and nickel base alloy weldments in steam. The ati 800 alloy is normally used in service at temperatures to approximately 1100f 593c. Incoloy alloys 800h and 800ht annealed 0 100 200 300 400 500 600 700 800 900 temperature, c temperature, f typical usage range typical usage range 19. Procedure keep preheat and post heat to a minimum or according to base.
A wide variety of incoloy 800 sheet options are available to you, there are 585 suppliers who sells incoloy 800 sheet on, mainly located in asia. Metal supplier, metal distributor of nickel alloys, stainless. High performance alloys stocks and produces incoloy 800 h in this grade in the following forms. It is an ironnickelchromium alloy having the same basic composition as incoloy 800 and incoloy 800h but. Comparison of creeprupture life at 1100c 2012f kanthal apm incoloy alloy 800ht creep properties incoloy alloy ma956 sheet is made by mechanical alloying. Incoloy alloys 800h and 800ht incoloy alloys 800h and 800ht have significantly higher creep and rupture strength than incoloy alloy 800.
Incoloy 800 sheet are alloys of nickel, chromium and iron. It is an ironnickelchromium alloy having the same basic composition as incoloy 800 and incoloy 800h but with significantly higher creeprupture strength. Incoloy 8incoloy 800 h is an ironnickelchromium alloy having the same basic. Incoflux 4, incoflux 6 and incoflux nt100 are used for. A nickelironchromium alloy with good strength and excellent resistance to oxidation and carburization in high. Incoloy 800 is an austenitic, solidsolution alloy and has a faceceteredcubic structure. The higher strength results from close control of the carbon, aluminum, and titanium contents in conjunction with a hightemperature anneal. The alloy is capable of remaining stable and maintaining its austenitic structure even after long time exposures to high temperatures. Materiali che lavoriamo specialities of materials we machine. Guidelines for the welded fabrication of nickel alloys for corrosionresistant service there are a number of factors that require attention during fabrication. Wear variations of nimonic 80a slid against incoloy 800ht between room temperature r. Incoloy 800 i800 monel 400 m4 incoloy 825 i825 monel 400hf m4s monel 400fhf m4f monel 500 m5 f51 d monel 500hf m5s monel 500fhf m5f 7 how to orderspecify forged steel valves section c bodybonnet, trim material cont. Tubular products from special metals pcc energy group.
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