Prior to that it was owned by union carbide, stellite division. Stellite is a nonmagnetic alloy which contains a variety of different metal components with the main elements being cobalt and chromium. Hardfacing steel with nanostructured coatings of stellite6. Figure 1 shows the microstructure of the stellite 6 coating. Stellite 6 is available as welding wire, rod, powder, and electrodes. Stellite alloys are a group of cobaltchromium superalloys. The chemical composition wt% of new alloy is shown in.
Corrosion materials is a global leader in specialty nickel alloys. Stellite alloy series1 is a straight, even handle scissor, designed for both flexability and stability. There seem to be a lot of different stellite alloys, if you want a copy of the composition of these alloys, check this website. Although used primarily to restore worn parts to usable condition, hardfacing is also applied to new components before being placed into service. The purpose of this research project is to establish reliable lowstress and gouging wear rate information for a series of alloy white irons and a series of cobase pm alloys and to correlate the wear resistance with the microstructural features and mechanical properties of these materials. Invented by elwood haynes in the early 1900s as a substitute for cutlery that stained or that had to be constantly cleaned composition. Stellitetm cobaltbased alloys consists of complex carbides in an alloy matrix. Stellite alloys chemical composition, mechanical properties. Md shahanur hasan 1, md abdul mazid 2, and richard e. Wear resistant cocrw cobalt 6b is a cobalt based chromium, tungsten alloy for wear environments where seizing, galling and abrasion are present. Stellite 6k is excellent for some uses and is a poor performer for others. The cocrw system alloy retains its hardness at elevated temperatures and is especially effective for wear applications at high temperatures or in a corrosive environment, and are widely used as a wear, corrosion, and heatresistant material 43. Stellite 3 valve,stellite 3 flanges,stellite 3 pipe. Moreover, the lc stellite coated samples were laser cladded so that the wear surface would not have a.
Stellite 6 is a cobase wear resistant alloy containing 1% c, 27% cr, 4. I cut a few cores that were welded stellite, i was using a coated bullnose endmill, i was cutting a taper so just the nose radius was doing all the work, i had a 10mm dia and was somewhere around 200 sfpm and about a. Hightemperature hardness and wear resistance of stellite alloys by. There are many types of stellite alloys composed of varying quantities of cobalt, chromium, molybdenum, tungsten, iron, nickel, boron, aluminum, carbon, manganese, phosphorus, silicon, titanium and sulfur in different proportions. Pdf microstructure and phase analyses of stellite 6 plus 6. Universal wire works stellite 31 ams 5789 filler metal. Applications include cutting plastics, rubber, paper, carpet, and wood. This is a better and more fool proof approach even for buttressed inconel 625 layer welding done before application of stellite 6 or stellite 21. Table 1, together with those of stellite 3 and stellite 6 for.
The carbides present in the cocrwbased stellite alloys are of chromiumrich m7c3 type. With many yeas production experience, strict control stellite 3 chemical composition and stellite 3 mechanical properties. Alternate stellite process material selection and properties. Most stellite alloy compositions contain at least four to six of the listed elements. Steel castings handbook supplement 8 high alloy data. This article references a book on the haynes stellite company written by gray. The trademark owners of stellite claim that stellite 6 is the most widely used of their range of stellite alloys, offering a proven industry standard for generalpurpose wear resistance, and high mechanical and chemical perfromance in hostile environments. As far as i can tell, talonite is not really available anymore since rob simonich passed away, as he was the distributor for talonite. Stellite 3 angle bars, stellite 3 flanges, pipe fitting, steel pipe, heat exchanger and reducer, gasket, tee, pipe fitting, tube plate, have all specifications. Stellite the general name for a group of cobaltbase hard facing alloys containing chromium, tungsten, silicon, and other. Be sure to wear the appropriate protective clothing and observe all warnings on chemical manufacuters sds safety data sheets. David boyes dendritic cobalt is still available on boye knives, and stellite 6k is manufactured by deloro stellite. The butterfly handles and short rubber coated finger rests are key features. This alloy is very popular since it can retain hardness even at elevated temperature.
One of its most popular uses is as valve seats and valve facings used in severe service internal combustion engines. It may also contain tungsten or molybdenum and a small but important. Haynes 25 l605 has a unique ability to resist corrosion in very severe environments. It may also contain tungsten or molybdenum and a small but important amount ofcarbon. Alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. Stellite alloys are composed of various amounts of cobalt, nickel, iron, aluminium, boron, carbon, chromium, manganese. Mechanical properties of stellite 3 and stellite 6 technical.
Buy products such as five star composition book, college ruled, 100 sheets, color choice will vary 09343 at walmart and save. Pdf the basics of stellites in machining perspective. Stellite 3 is superior and this improved resistance increases as loads are increased or speeds are increased to 10 times to 25 times that of stellite alloy 6 or 12. An alloy that had the same chemical composition as the stellite 6 alloy but not. Microstructure and phase analyses of stellite 6 plus 6 wt.
A comparative study for wear resistant of stellite 6. Stellite is a range of cobaltchromium alloys designed for wear resistance. Many components require the application of additional layers to. Grades that fight galling and wear, corrosion resistant grades for abrasion resistance. The addition of cbn was found to be very effective in. Stellite article about stellite by the free dictionary. Hightemperature hardness and wear resistance of stellite alloys. Chemical compositions wt%, co in balance of stellite alloys. Hardfacing steel with nanostructured coatings of stellite6 by supersonic laser deposition rocco lupoi1, andrew cockburn1, chris bryan1, martin sparkes1, fang luo2 and william oneill1 the ability to manufacture coatings is critical to engineering design. Stellite alloys chemical composition, mechanical properties and. Stellite alloy is a range of cobaltchromium alloys designed for wear resistance. Summary of micro hardness test specifications 93 table 42.
Pdf sliding wear and solidparticle erosion resistance of a novel. Identification of the substancepreparation and of the companyundertaking product identifier product type welding rods, coated rod electrode, welding wire product name stellite 12 rodwireelectrodepart product code ksyc10031 type 1x1x1 mm, base. Stellite hasnt gone away, there isnt that much hype about it these days, thats all. Safety data sheet issuing date 20150206 revision date 20150306 revision number 2 1. Characterization of microstructure and mechanical properties of. A comparative study for wear resistant of stellite 6 coatings. Stellite 6b hpa cobalt 6b uns r30016 high performance. This is particularly true when the metals do not benefit by conventional lubrication. Chemical composition and mechanical properties of stellite 6. Metallographic etching for microstructure metallurgical analysis. Stellite 6 coating showed the highest resistance to corrosion while ni 3 al showed the least corrosion resistance sidhu and prakash 2006b. Nominal composition mass % and physical properties. Eximpulse services will provide you the latest and relevant market intelligence reports of stellite import data you can use this stellite import data for multiple kinds of analysis.
Review hardfacing steel with nanostructured coatings of stellite6 by supersonic laser deposition rocco lupoi1, andrew cockburn1, chris bryan1, martin sparkes1, fang luo2 and william oneill1 the ability to manufacture coatings is critical to engineering design. The stuff will melt and stellite facings can be applied by normal welding methods in the field to steel pieces subject to heat and abrasion. The carbides present in the cocrwbased stellite alloys are of chromiumrich m 7 c 3 type. Asme weld number tables are discussed in relation to base metals, filler metals and their positioning in the number tables. The composition and physical and mechanical properties of this stellite 6 alloy coating are given in tables 1 and 2, respectively.
Nitronic and stellite alloys are leaders in galling resistance. Cobalt alloy 6b stellite 6b ams 5894 aircraft materials. The alloys may also contain tungsten or molybdenum and a small but important amount of carbon. They also studied the hot corrosion resistance of nicraly, nicr, stellite 6 and ni 3 al coatings in na 2 so 460%v 2 o 5 at 900 c under cyclic conditions. Stellite 31 ds0121508 s r0808 applied and interdisciplinary. Haynes 25 l605 maintains good oxidation resistance up to 1900 f.
Invented by elwood haynes 3 in the early 1900s as a substitute for cutlery that stained or that had to be constantly cleaned. Average hardness values hv of solid solution and carbides 103. Table 1 list of etchants and their chemical composition etchant no. David boyes dendritic cobalt is still available on boye knives, and. A buttressed layer to be on the safeside is given usual preheat to 250 deg cent and then also pwht for additional application of stellite 6 alloy by gtaw process. Nominal composition mass % and physical properties co. Comparison of the sliding wear behaviour of selfmated hiped. Stellite 6 coating showed the highest resistance to corrosion while ni 3 al showed the least. Cobalt alloy 6b stellite 6b is a cobaltbased, chromiumtungsten alloy used extensively in wear environments where its low friction coefficient minimises the risk of seizing and galling, even in applications where lubrication is not practical. Talonite and stellite 6k claim the highest rc at around 47.
The wear resistance of alloy 6b is due to the chemical composition and is not a product of heat treatment or other hardening mechanisms. Aug 15, 20 the carbides present in the cocrwbased stellite alloys are of chromiumrich m 7 c 3 type. Stellite 6 can be supplied to the following specifications. Haynes 25 l605 is a nonmagnetic cobalt based superalloy. Ams 5759 requires minimum yield strength of 45,000 psi at room temperature. Steel castings handbook supplement 8 high alloy data sheets corrosion series steel founders society of america 2004.
Talonitestellitedendritic cobalt blade material knife. It is a trademarked name of the deloro stellite company and was invented by. Selecting corrosion resisting alloys bulletin a5z ype 400 series cf8m cn7m durimet 20 monel m351 n7m chlorimet 2 on stellite 6 titanium conium 702conium 705 0 0% weight percent 4 40% weight percent 8 80% weight percent nr. This report on the composition and physical properties of the magnetite forms part of a detailed study of the mineralogy and petrology of the ejected plutonic blocks collected by the late professor l. I need info on welding satellite 6 to ss316 pretty much what the title said, i received a contract job to help out a company hardface their ss316 parts with stellite 6 filler so they can be machined back down to a certain height. Hightemperature hardness and wear resistance of stellite alloys by samit kapoor a thesis submitted to the faculty of graduate and postdoctoral affairs in partial fulfillment of the requirements for the degree of master of applied science in mechanical engineering carleton university ottawa, ontario 2012, samit kapoor. A history of the haynes stellite company, 19121972. Stellite 3 valve,stellite 3 flanges,stellite 3 pipe fitting. A history of the haynes stellite company, 19121972 gray, ralph d on. Quantities of carbides in stellite alloys 87 table 41.
Chemical composition of the arc additive manufacturing stellite 6 part wt. The ps, hvof and lc stellite coated all had a similar nominal composition of balance co, 28% cr, 4. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w, 0. The chemical composition of stellite 6 is given in table 3. Hardfacing steel with nanostructured coatings of stellite. The alloys of interest in the present study are stellite 3 nominal composition in wt %. The material itself has been around since the 1900s and was originally seen as a substitute for traditional metal cutlery which suffered from general wear and tear and was also prone to staining.
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