Stellite alloy is a range of cobaltchromium alloys designed for wear resistance. There are 916 suppliers who sells stellite 1 on, mainly located in asia. The research reported herein is mainly focused on the effect of cutting parameters and tool wear on the machined surface defects, surface roughness, deformation layer and residual stresses when dry milling stellite 6, deposited by. Ss316 is better than ss304 in terms of corrosion resistance, heat resistance and certain properties, but the price is higher than aisi 304, for more details, please check stainless steel grade 304 vs 316, and 316 vs 316l. Stellite alloys are a group of cobaltchromium superalloys consisting of complex carbides. Steel castings handbook supplement 8 high alloy data. The different varieties of stellite alloy can take in an array of different elements such as nickel, iron, carbon, magnesium, sulphur, silicon and titanium. The alloys may also contain tungsten or molybdenum and a small but important amount of carbon. By introducing other elements to the alloy, specific levels of wear resistance, corrosion resistance and heat resistant materials can be created. Q235 mild steel was used as substrate, and stellite 6 alloys were welded by plasma transferred arc welding ptaw. Stellite alloys chemical composition, mechanical properties. Metallurgy is controlled by adjustments in composition as well as. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w. Mead composition book, wide ruled, 100 sheets, 9 34 x 7 1 2, black marble 72936 average rating.
According to badger and sweeney,6 the microstructure of stellite 21 consists of three different types of carbide. These alloying elements are in various proportions, with most alloys containing four to six of these elements. Carbon steel contact parts with stellite tipped rotor. Out of print literary and book themed zipper pouch for book.
Similarly, the red line indicates the combinations of acid concentration and temperature at which a corrosion rate of 0. Effect of microstructure on the physical properties of. Figure 1 shows micrographs of cast left and plasma trans arc ptawelded right stellite 12. Stellite cobalt base alloys consist of complex carbides in an alloy matrix. Hardfacing steel with nanostructured coatings of stellite.
Stellite alloy distributor in the usa a metal source, llc inventory consists of various stellite alloy grades in any size or form as indicated below. Wear characteristic of stellite 6 alloy hardfacing layer. The higher tungsten content of stellite alloy 4 gives improved high temperature properties and an increase in abrasive wear resistance over stellite alloy 6, but not as good as stellite alloy 12 or 3. The materials used in artificial satellites and space structures. The wear resistance of alloy 6b is due to the chemical composition and is not a product of heat treatment or other hardening mechanisms. There are several types and variations of stellite superalloys containing varying levels of.
There are a large number of stellite alloys composed of various amounts of other alloying elements such as nickel, iron, aluminum, boron, carbon, manganese, phosphorus, sulphur, silicon, and titanium. Hightemperature hardness and wear resistance of stellite. Cobalt alloy 6b stellite 6b ams 5894 aircraft materials. 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. Etchants for cobalt and alloys 18cr10ni14w alloy chemical etching general macrostructure 25cr10ni8w, 21cr20ni3w3mo1cb alloys chemical etching general macrostructure. Aug 15, 20 the carbides present in the cocrwbased stellite alloys are of chromiumrich m 7 c 3 type. Stellite alloys chemical composition, mechanical properties and. We rely on satellites and structures in space for communications more than ever before. A metal source, llc stellite alloysstellite alloys. Stellite is a family of completely nonmagnetic and corrosionresistant cobalt alloys of various compositions that have been optimised for different uses.
Stellite article about stellite by the free dictionary. Influence of cutting parameters and tool wear on the. Talonitestellitedendritic cobalt blade material knife. 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. Steel castings handbook supplement 8 high alloy data sheets. Stellite 12 is a typical cobalt based alloy with a chemical composition of cocrwc. 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. Hpa cobalt 6b is a wear resistant alloy used for stems, balls, rails and bushings. Cocrw meets or exceeds ams 5894, pwa 1196, mcs 1012 and uns r30016. Check availability with our sales department by submitting your inquiry below to see if a metal source, llc can provide your stellite alloy metal requir. The efficiency of a machining process can be measured by evaluating the quality of the machined surface and the tool wear rate. Pdf the basics of stellites in machining perspective. It is welded to the base material, and generally takes the form of specialized electrodes for arc welding or filler rod for oxyacetylene and gas tungsten arc welding tig welding.
Their exceptional wear resistance is due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a cocr alloy matrix. Sterilites broad line of plastic housewares feature some of the most innovative and distinctive products available on the market today. The composition of stellite 6 powder is listed in table 1. Stellite suppliers, manufacturer, distributor, factories. Data provided by the manufacturer, deloro stellite, inc. Hardfacing steel with nanostructured coatings of stellite6.
Stellite is a range of cobaltchromium alloys designed for wear resistance. Jan 01, 2011 stellite 12 is a typical cobalt based alloy with a chemical composition of cocrwc. 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. Microstructure and phase analyses of stellite 6 plus 6 wt. Stellite 21 does nothaveasimple microstructure, butinstead it consists of anaustenitic matrix, composed of the solid solution of cobalt and chromium as cast, and the matrixhas acored dendritic structure, as shownin figure 1. Pdf microstructure and phase analyses of stellite 6 plus. Check availability with our sales department by submitting your inquiry below to see if a metal source, llc can provide your stellite alloy metal requirement. Powder metal alloys are used in pta also called powder plasma welding and thermal spray. 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. Composition weight % of elements of stellite grades. Haynes 25 l605 is a nonmagnetic cobalt based superalloy. Stellite is a nonmagnetic alloy which contains a variety of different metal components with the main elements being cobalt and chromium.
Talonite and stellite are really just trade names for different cobalt alloys, ie. Stellite 6b hpa cobalt 6b uns r30016 high performance. Resharpening a blade is an intricate process that requires stateoftheart machines, acute fine tuning and high quality materials. A wide variety of stellite 1 options are available to you, such as stainless steel. Haynes 25 l605 maintains good oxidation resistance up to 1900 f. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w, 0. They help provide us with television pictures, telephone calls and a wide variety of communication signals, whilst surviving the hostile environment of space. 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.
Dendritic cobalt is cast cobalt 6b, stellite 6k is cobalt 6b with 0. Universal wire works stellite 31 ams 5789 filler metal. Hightemperature hardness and wear resistance of stellite alloys. Wear characteristic of stellite 6 alloy hardfacing layer by. However, if used for chopping hard wood, the soft cobalt rolls over and the knife does not cut well. Milling of cast material and ptahardfacing layers of the. It may also contain tungsten or molybdenum and a small but important amount ofcarbon. 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. This alloy also has higher hot hardness and resists galling like all stellite alloys when mated with another stellite alloy. Alloy 6b uns r30016 ams 5894 description alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. 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. The surface of the matrix was cleaned with acetone and washed with distilled water to remove residue and grease. Stellite the general name for a group of cobaltbase hard facing alloys containing chromium, tungsten, silicon, and other.
Hardfacing is a metalworking process where harder or tougher material is applied to a base metal. Stellite 6k is excellent for some uses and is a poor performer for others. Ams 5759 requires minimum yield strength of 45,000 psi at room temperature. The stellite 6 powder was prepainted on the surface of the substrate. Tensile strength is 758 mpa, yield stress is 655 mpa, youngs modulus is 210 gpa, poissons ratio is 0. Stellitetm cobaltbased alloys consists of complex carbides in an alloy matrix.
Stellite suppliers, manufacturer, distributor, factories, alibaba. 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 not recommended d 212f max. This is the cobaltbased alloy most widely used because. Pdf microstructure and phase analyses of stellite 6 plus 6. Adhesive wear is similar to stellite alloy 6, but resistance improves as the load increases.
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. They are resistant to wear, galling and corrosion and retain these properties at high temperatures. Microstructure and tribological properties of cobaltbased. The main chemical composition of stellite alloys consists of cobalt co, chromium cr. Stellite systems are co alloys that mainly contain alloying elements, such as tungsten w, chromium cr, molybdenum mo, and a certain amount of carbon c. Stellite 6 is a cobase wear resistant alloy containing 1% c, 27% cr, 4. Alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. Stellite 6 is a cobase wear resistant alloy containing 1 % c, 27% cr, 4.
Bandsaw blade resharpening carbide stellite sharpening. 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. Investigation of corrosion behavior of wrought stellite alloys. Wisdom chiamger wd co1 is a cobalt based welding material that has the highest. Alibaba offers 263 stellite suppliers, and stellite manufacturers, distributors, factories, companies. Haynes 25 l605 has a unique ability to resist corrosion in very severe environments. Chemical composition of costellite 6 alloy is shown in table 1 mass fraction.