Steel castings handbook supplement 8 high alloy data sheets corrosion series steel founders society of america 2004. There seem to be a lot of different stellite alloys, if you want a copy of the composition of these alloys, check this website. Stellite 6k is excellent for some uses and is a poor performer for others. Tribaloy t800 alloy is one of the highsilicon, intermetallic wear alloys. Stellite alloys chemical composition, mechanical properties. Hightemperature hardness and wear resistance of stellite alloys. Stellite is a range of cobaltchromium alloys designed for wear resistance. The top countries of suppliers are india, china, and taiwan, china, from which the percentage of stellite 1 supply is 1 %, 97%, and 2% respectively. Definition of stellite from the collins english dictionary.
Table 1 composition weight % of stellite 6 alloy ref 4. Research article effect of gtaw welding parameters. Alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. The alloy currently most suited for cutting tools, for example, is stellite 100, because this alloy is quite hard, maintains a good cutting edge at high temperature, and resists hardening and annealing.
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. However, if used for chopping hard wood, the soft cobalt rolls over and the knife does not cut well. Stellite 6 can be supplied to the following specifications. Stellite 6 is a cobase wear resistant alloy containing 1 % c, 27% cr, 4.
Journal of engine ering material s and manufact ure, 12, 3550. Hardfacing is usually limited to one, two, or three layers. 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. A comparative study for wear resistant of stellite 6. Stellite alloys are a group of cobaltchromium superalloys consisting of complex carbides. They were not satisfactorily resistant to boiling 60% hnosub 3. Chemical composition of astm a182 f11 steel, stellite and fig. Table 1 stellite6 chemical composition wt%, hardness and.
The top countries of suppliers are india, china, and taiwan, china, from which the percentage of stellite 1 supply is 1%, 97%, and 2% respectively. Nuregcr6807, results of nrcsponsored stellite 6 aging. Stellite 6 is available as welding wire, rod, powder, and electrodes. Pdf microstructure and phase analyses of stellite 6 plus. Mead composition notebooks, comp books, wide ruled paper, 100 sheets, 934 x 712 inches, classic black marble, 3 pack 38301. Specialty turning tangentially mounted inserts fixperfect high performance inserts. The story of haynes international spans a century of products, processes and, most of all, people. 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. Cobaltbased alloys, also named stellite, have a wide range of applications. David boyes dendritic cobalt is still available on boye knives, and.
Industrial laser annual handbook, 1986 edition, penn well books, laser focus. The type of stellite alloy being deposited should also be considered. Section viii, division 1 asme design values listed in section iii, division 1, table 1 72 the information and data in this product data bulletin are accurate to the best of our knowledge and belief, but are intended for general information only. 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. Stellite alloys are a group of cobaltchromium superalloys consisting of complex carbides in an alloy matrix predominantly designed for high wear resistance and superior chemical and corrosion performance in hostile environments. The bespoke tool design allows researchers to benchmark new and novel. The appropriate uns number has been given wherever possible. It is regarded as the industry standard for generalpurpose wear resistance applications. Specimens were coated using detonation gun thermal spray process, with different coating thicknesses of stellite6 ranging from 50 m to 150 m. Steel castings handbook supplement 8 high alloy data. This alloy also has higher hot hardness and resists galling like all stellite alloys when mated with another stellite alloy. Many components require the application of additional layers to. A comparative study for wear resistant of stellite 6 coatings. 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.
Stellite is a nonmagnetic alloy which contains a variety of different metal components with the main elements being cobalt and chromium. Tensile strength is 758 mpa, yield stress is 655 mpa, youngs modulus is 210 gpa, poissons ratio is 0. The alloys may also contain tungsten or molybdenum and a small but important amount of carbon. Pdf the basics of stellites in machining perspective. Stellite alloys 1, 6, and 12 are the most popular materials within this group. Section viii, division 1 asme design values listed in section iii, division 1, table 172 the information and data in this product data bulletin are accurate to the best of our knowledge and belief, but are intended for general information only. 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.
A history of the haynes stellite company, 19121972 gray, ralph d on. Table 1 list of etchants and their chemical composition etchant no. Cobalt alloy 6b stellite 6b ams 5894 aircraft materials. Haynes 25 l605 is a nonmagnetic cobalt based superalloy. Information provided by universal wire works for their line of welding wire and filler metal.
The wear resistance of alloy 6b is due to the chemical composition and is not a product of heat treatment or other hardening mechanisms. Pdf microstructure and phase analyses of stellite 6 plus 6. Stellite 6b is supplied in the solution treated condition to ams 5894 and its wear resistant. It is a trademarked name of the deloro stellite company and was invented by elwood haynes 1 in the early 1900s as a substitute for cutlery that stained or that had to be constantly cleaned. 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. It is a trademarked name of the deloro stellite company and was invented by. The stellite trademark, which was applied to the first cobalt wear alloys, is still in use. Scanning electron micrographs of stellite and tungsten carbide powders are shown in. Laser cladding is one of the most advantageous solutions to fulfill this kind of repair. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w, 0. Hightemperature hardness and wear resistance of stellite alloys by samit kapoor. Carbon equivalent welding onto carbon and lowalloy steels pwht. Talonite and stellite 6k claim the highest rc at around 47.
Stellite definition and meaning collins english dictionary. Hardfacing wear resistant surfaces deposited on the base metal or on buildup deposits extend service life. As far as i can tell, talonite is not really available anymore since rob simonich passed away, as he was the distributor for talonite. Supersonic laser deposition sld is a novel coating method based on cold. An alloy that had the same chemical composition as the stellite 6 alloy but not. Cobalt alloy, kennametal stellites cobalt base alloys are available as cobalt rods, cobalt electrodes, cobalt wire and cobalt powder. Polymet corporation is a leading manufacture of premium consumables for welding, hardfacing, and thermal spraying. Stellite and tungsten carbide powders were used as coating materials with average particle sizes of 30 and 25gm, respectively. Stellite alloys chemical composition, mechanical properties and. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w. Mechanical properties of stellite 3 and stellite 6 technical. A wide variety of stellite 1 options are available to you, such as stainless steel. Microstructure and phase analyses of stellite 6 plus 6 wt.
The chemical composition of stellite 6 is given in table 3. Haynes 25 l605 maintains good oxidation resistance up to 1900 f. Stellite 6b hpa cobalt 6b uns r30016 high performance. One of its most popular uses is as valve seats and valve facings used in severe service internal combustion engines. Chemical composition of astm a182 f11 steel, stellite and. Ams 5759 requires minimum yield strength of 45,000 psi at room temperature. Hardfacing steel with nanostructured coatings of stellite6. Tensile strength is 758 mpa, yield stress is 655 mpa, youngs. Moreover, the lc stellite coated samples were laser cladded so that the wear surface would not have a.
Consumable selection welding material selection depends upon three major factors. 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. Stellite article about stellite by the free dictionary. Applications suggested for the materials are described only to help readers make their own evaluations. Stellite 6 hardfacing alloy with different ta contents is successfully synthesized. Haynes 25 l605 has a unique ability to resist corrosion in very severe environments. Present paper describes the mechanical properties of stellite6 coated aisi 316 l stainless steel. Universal wire works stellite 31 ams 5789 filler metal. There are 916 suppliers who sells stellite 1 on, mainly located in asia. Effect of ta on the microstructure and hardness of stellite 6 coating.
Formed in kokomo, indiana in october, 1912, the more than 100year history of haynes continuous operation also captures the historic growth of many wellknown nickel and cobaltbase superalloy families. A separate brochure is available for the wrought forms of this alloy, namely stellite 6b and stellite 6k. Stellite alloy is a range of cobaltchromium alloys designed for wear resistance. Stellitetm cobaltbased alloys consists of complex carbides in an alloy matrix. Hightemperature hardness and wear resistance of stellite. Talonitestellitedendritic cobalt blade material knife. Influence of cutting parameters and tool wear on the surface. Hardfacing steel with nanostructured coatings of stellite6 by. Stellite 6 is a cobase wear resistant alloy containing 1% c, 27% cr, 4. The chemical composition of the substrate material is shown in table 1. In simple terms a stellite alloy is designed to cope with extreme wear and tear and by introducing a variety of other components can be specifically moulded for a particular requirement. Asme weld number tables are discussed in relation to base metals, filler metals and their positioning in the number tables. Cobalt alloys are used primarily for wear applications and are particularly wellsuited for hardfacing.
The different varieties of stellite alloy can take in an array of different elements such as nickel, iron, carbon, magnesium, sulphur, silicon and titanium. Hy s6stellit 6uns r3006ams 5387c2001 is the most widely used of the wear resistant cobaltbased alloys and exhibits good allround performance. Journal of engine ering material s and manufact ure, 1 2, 3550. Base metal primarily affects the choice of buildup materials. 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.
Stellite is a family of completely nonmagnetic and corrosionresistant cobalt alloys of various compositions that have been optimised for different uses. This article references a book on the haynes stellite company written by gray. 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. Wear resistant cocrw cobalt 6b is a cobalt based chromium, tungsten alloy for wear environments where seizing, galling and abrasion are present. Aug 15, 20 chromium is also an extremely important component of stellite alloys, not only does it offer its high corrosion resistant properties to the alloy but it is also the predominant carbide former and it provides strength as a solute in the alloying matrix. It may also contain tungsten or molybdenum and a small but important amount ofcarbon. David boyes dendritic cobalt is still available on boye knives, and stellite 6k is manufactured by deloro stellite.
The chemical composition of stellite 6 is given in table 2. Mechanical properties of stellite6 coated aisi 316l. Hardfacing steel with nanostructured coatings of stellite. Chemical composition of stellite 6 powder and st14 steel substrate. A history of the haynes stellite company, 19121972. The ps, hvof and lc stellite coated all had a similar nominal composition of balance co, 28% cr, 4. 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. Stellite hasnt gone away, there isnt that much hype about it these days, thats all.
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