Steel castings handbook supplement 8 high alloy data. Talonitestellitedendritic cobalt blade material knife. There are 916 suppliers who sells stellite 1 on, mainly located in asia. Pdf microstructure and phase analyses of stellite 6 plus 6. 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 12 is a typical cobalt based alloy with a chemical composition of cocrwc. 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. The surface of the matrix was cleaned with acetone and washed with distilled water to remove residue and grease. 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. Stellite is a nonmagnetic alloy which contains a variety of different metal components with the main elements being cobalt and chromium. 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. 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. Resharpening a blade is an intricate process that requires stateoftheart machines, acute fine tuning and high quality materials.
Aug 15, 20 the carbides present in the cocrwbased stellite alloys are of chromiumrich m 7 c 3 type. 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. Alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. The main chemical composition of stellite alloys consists of cobalt co, chromium cr. 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. It may also contain tungsten or molybdenum and a small but important amount ofcarbon. By introducing other elements to the alloy, specific levels of wear resistance, corrosion resistance and heat resistant materials can be created. Stellite suppliers, manufacturer, distributor, factories, alibaba. There are several types and variations of stellite superalloys containing varying levels of. A wide variety of stellite 1 options are available to you, such as stainless steel. They help provide us with television pictures, telephone calls and a wide variety of communication signals, whilst surviving the hostile environment of space.
Hightemperature hardness and wear resistance of stellite alloys. Stellite alloys chemical composition, mechanical properties and. Jan 01, 2011 stellite 12 is a typical cobalt based alloy with a chemical composition of cocrwc. 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. Stellite article about stellite by the free dictionary. This is the cobaltbased alloy most widely used because. The alloys may also contain tungsten or molybdenum and a small but important amount of carbon. 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. This alloy also has higher hot hardness and resists galling like all stellite alloys when mated with another stellite alloy. Stellite is a family of completely nonmagnetic and corrosionresistant cobalt alloys of various compositions that have been optimised for different uses. Microstructure and tribological properties of cobaltbased. Hpa cobalt 6b is a wear resistant alloy used for stems, balls, rails and bushings. Hardfacing steel with nanostructured coatings of stellite6.
Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w, 0. 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. They are resistant to wear, galling and corrosion and retain these properties at high temperatures. Alibaba offers 263 stellite suppliers, and stellite manufacturers, distributors, factories, companies. Out of print literary and book themed zipper pouch for book. Hightemperature hardness and wear resistance of stellite.
Haynes 25 l605 maintains good oxidation resistance up to 1900 f. Adhesive wear is similar to stellite alloy 6, but resistance improves as the load increases. Data provided by the manufacturer, deloro stellite, inc. Stellite 6k is excellent for some uses and is a poor performer for others. 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. Wear characteristic of stellite 6 alloy hardfacing layer.
Investigation of corrosion behavior of wrought stellite alloys. Pdf the basics of stellites in machining perspective. Haynes 25 l605 is a nonmagnetic cobalt based superalloy. Universal wire works stellite 31 ams 5789 filler metal.
Haynes 25 l605 has a unique ability to resist corrosion in very severe environments. Microstructure and phase analyses of stellite 6 plus 6 wt. Steel castings handbook supplement 8 high alloy data sheets. Stellite 6 is a cobase wear resistant alloy containing 1 % c, 27% cr, 4. Hardfacing is a metalworking process where harder or tougher material is applied to a base metal. Ams 5759 requires minimum yield strength of 45,000 psi at room temperature. The composition of stellite 6 powder is listed in table 1. Bandsaw blade resharpening carbide stellite sharpening. The different varieties of stellite alloy can take in an array of different elements such as nickel, iron, carbon, magnesium, sulphur, silicon and titanium. Stellite the general name for a group of cobaltbase hard facing alloys containing chromium, tungsten, silicon, and other.
Stellite alloy is a range of cobaltchromium alloys designed for wear resistance. Talonite and stellite are really just trade names for different cobalt alloys, ie. The efficiency of a machining process can be measured by evaluating the quality of the machined surface and the tool wear rate. Stellite 6b hpa cobalt 6b uns r30016 high performance. Wear characteristic of stellite 6 alloy hardfacing layer by.
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. Q235 mild steel was used as substrate, and stellite 6 alloys were welded by plasma transferred arc welding ptaw. Etchants for cobalt and alloys 18cr10ni14w alloy chemical etching general macrostructure 25cr10ni8w, 21cr20ni3w3mo1cb alloys chemical etching general macrostructure. Stellite 6 is a cobase wear resistant alloy containing 1% c, 27% cr, 4. 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. 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. Cobalt alloy 6b stellite 6b ams 5894 aircraft materials. Alloy 6b uns r30016 ams 5894 description alloy 6b is a cobaltbased alloy with great wear, erosion and abrasion resistance. Figure 1 shows micrographs of cast left and plasma trans arc ptawelded right stellite 12. Their exceptional wear resistance is due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a cocr alloy matrix. Chemical composition of costellite 6 alloy is shown in table 1 mass fraction.
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. Stellite is a range of cobaltchromium alloys designed for wear resistance. Stellite 6, the nominal chemical composition of which is 2732% cr, 46% w. Influence of cutting parameters and tool wear on the. Stellite suppliers, manufacturer, distributor, factories. Pdf microstructure and phase analyses of stellite 6 plus. Carbon steel contact parts with stellite tipped rotor. The stellite 6 powder was prepainted on the surface of the substrate.
However, if used for chopping hard wood, the soft cobalt rolls over and the knife does not cut well. 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. Hardfacing steel with nanostructured coatings of stellite. Sterilites broad line of plastic housewares feature some of the most innovative and distinctive products available on the market today. 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. Powder metal alloys are used in pta also called powder plasma welding and thermal spray.
Similarly, the red line indicates the combinations of acid concentration and temperature at which a corrosion rate of 0. The materials used in artificial satellites and space structures. 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. These alloying elements are in various proportions, with most alloys containing four to six of these elements. Dendritic cobalt is cast cobalt 6b, stellite 6k is cobalt 6b with 0. 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. Cocrw meets or exceeds ams 5894, pwa 1196, mcs 1012 and uns r30016. Wisdom chiamger wd co1 is a cobalt based welding material that has the highest. We rely on satellites and structures in space for communications more than ever before. Stellite cobalt base alloys consist of complex carbides in an alloy matrix.
The wear resistance of alloy 6b is due to the chemical composition and is not a product of heat treatment or other hardening mechanisms. Metallurgy is controlled by adjustments in composition as well as. Stellite alloys are a group of cobaltchromium superalloys consisting of complex carbides. Stellitetm cobaltbased alloys consists of complex carbides in an alloy matrix. Tensile strength is 758 mpa, yield stress is 655 mpa, youngs modulus is 210 gpa, poissons ratio is 0. Milling of cast material and ptahardfacing layers of the. A metal source, llc stellite alloysstellite alloys. Composition weight % of elements of stellite grades. Mead composition book, wide ruled, 100 sheets, 9 34 x 7 1 2, black marble 72936 average rating. 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. 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 alloys chemical composition, mechanical properties. Effect of microstructure on the physical properties of.
359 206 433 1605 377 68 1019 1541 436 1005 678 120 1439 1607 736 949 178 473 769 623 817 1415 999 800 376 40 175 499 1147 667 1270