The damage caused by corrosion has both a direct cost and an indirect cost to engineering companies in the gas and oil and exploration sector, it is for this reason ptfe coatings are emerging as an innovative alternative to corrosion protection. The water works industry takes advantage of the superior corrosion resistance properties by. It is also corrosionresistant due to the use of a thermally, cured thermosetting synthetic binding material. We are global manufacturers of specialty, highperformance coatings, providing technical expertise in coating research and development. Such coatings are applied like paint and then baked to create a barrier. When your projects need b7 blue studs or b7 blue hex bolts, we have them both, available in many colors. Teflon, xylan, and ptfe coatings in addition to cadmium plating are also commonly used with a193 bolts. Similar to hex head cap crews, these structural fasteners have an increased width across the flats. How the versatile family of xylan coatings can help. Our products are designed to solve specific problems if we dont. We use ss316 bolts for fastening the parts, these parts are dipped in chemicals. Even after as many as 1,000 hours, fluoropolymer ptfe coated fasteners still.
Are you trying to figure out how many bolts you need to flange up the project you are working on. Torque for flange bolting b7l7 studs stud diameter tension size ibf torque torque torque torque. Tripac 2000 blue is a comprehensive coating system for the protection of steel bolts, studs, nuts, washers and other fasteners. Ptfe coated fastener s provides great corrosion resistance, very low coefficient of friction, consistent tensioning and ease of installation and removal. For all other primer and paint requirements, contact rmb products. Ptfe coated studs, bolts and nuts ptfe coated fasteners provides great corrosion resistance, very low coefficient of friction, consistent tensioning and ease of installation and removal. Ptfe coated fasteners ptfe coated boltsptfe coated studs.
Ptfe coating services for fasteners orion industries, ltd. Choosing the right material and corrosion protection for the bolt is crucial, according to franz raymann, service manager at nordlock. Due to chemical reaction these bolts are eaten away. The most widely used application is on b7 studs with 2h nuts. Using ptfe nuts will remove all of these safety hazards once and for all. Ptfe coated studs, ptfe coated bolts, ptfe coated nuts. Ptfe coated fasteners provides exceptional corrosion resistance, low coefficient of friction, consistent tensioning and subsequent ease of installation and removal.
Ptfe coated studs, bolts and nuts technical specifications. Whitford worldwide coatings where good ideas come to the. Stud bolts bolting torque tables table 5 ptfe coated. Teflon industrial coatings can operate continuously at temperatures up to 260 c 500 f and be used for intermittent service up to 316 c. A wide variety of teflon bolts options are available to you, there are 215 suppliers who sells teflon bolts on, mainly located in asia. Fastener coating or coated fastener manufacturing india. Teflon coatings dupont licensed industrial applicator lia.
Consider hand tightening teflon coated bolts in selected locations. Teflon coated studs, bolts and nuts have been used for many years in all types of service, iincluding some fair. The polymer coating gives you up to 2200 hours of corrosion resistance. Primer 5327000 sparkling clear teflon market teflon typical applications teflon coating. Corrosion resistance teflon coatings intech services. Ptfe coated fasteners reduces the friction during use and reuse, it has brilliant anti corrosive properties and increases the usage life of fasteners. Lubricated refers to fasteners in the as received condition, which is normally a light preservative oil coating on unplated fasteners and no oil coating on plated fasteners. Tighter corrosion tensions are achieved with less requeired torque. The above table is applicable only for a193 grade b7 and a193 grade b16 stud bolts. These aqueousbased dispersions utilize specially blended multicoat systems of ptfe polytetrafluoroethylene, fep fluorinated ethylene propylene, and pfa perfluoroalkoxy to optimize performance characteristics. Hot dip galvanized b7 bolts, zinc plated b7 bolts, cadmium plated b7 bolts, blue xylan b7 bolts, blue teflon b7 bolts, green xylan b7 bolts, green teflon b7 bolts, mechanical galvanized b7 bolts, black oxide b7 bolts, plus fully threaded b7 tap bolts from 38 to 4 diameter. Regardless if its b7 studs, b8 studs, or teflon coated studs. Teflon coated bolt and fasteners and coating service.
Xylan coatings can be one, two primer and topcoat, and three primer, midcoat. Teflon coatings have been improved to provide environmentally friendly coating systems that combat the most corrosive. Ptfe coated studs, ptfe coated bolts, ptfe coated nuts, steel bolts coating, fluoropolymer coating, ptfe fasteners teflon coated stud bolts and nuts india, fastener coating standards. Red earth bolts fasteners at factory price red earth bolts fasteners best price avialable here. Most items instock teflon coated bolt and hardware. Teflon industrial coatings lower the kinetic coefficient of friction to a range of 0. Ptfe coated bolts reference chart ptfe coated bolts. Api 6a is an international standard which specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, purchasing, repair and remanufacture of wellhead and well tree equipment for use in the petroleum and natural gas industries. Pdf enbio have developed a novel, green, ambient temperature blast coating technique known as coblast. This table is applicable for ptfe coated bolts with k0.
Lightning bolt offers a wide variety of ptfe fasteners. Large inventories of ptfe coated and uncoated fasteners, including astm a193 and b7 studs teflon blue. Combating corrosion and protection for fasteners nord. With the use of our primers, the coating is given a smooth surface to bind to, which creates a more protective layer. Ptfe coated studs, bolts and nuts ptfe coated fastener s provides great corrosion resistance, very low coefficient of friction, consistent tensioning and ease of installation and removal. Now part of ppg, we have access to continuous investment and innovation across multiple markets to stay at the forefront of technology. Brazos fasteners is a distributor of fully threaded stud bolts. Using teflon studs is actually a much more costeffective solution than using regular bolts. The torque values are approved for spiral wound graphite and ptfe filled gaskets, graphite sheet gaskets ghe and ghr types, ring joint, double jacketed and. The costs entailed with other bolt coatings, such as cadmium coating, can be staggering when factors such as manhours, down time, safety and equipment damage are considered.
All material included on this page is informational only, and should not be used as ones sole source for design purposes, south coast industrial metals, inc does not guarantee the accuracy of the information on this site, and retain no liability for the use or misuse of the. Ptfe coated bolt coefficient of friction plain bolt coefficient of friction sigma fasteners, inc. Teflon typical applications teflon coating requirements recommended products. Primers ensure proper adhesion, increase durability, and give additional protection to the substrate. Torque for flange bolting b7l7 studs sigma fasteners. Certain grades of fasteners manufactured to astm a193 can be zinc coated per f2329 hotdip galvanized, b695 mechanically galvanized, or f1941 zinc plated. Extensive testing and field use have proven that the future of coated fastener s lies with fluoropolymer coatings. Teflon primers are an effective way to prepare a surface before coating is applied.
When migrating the old forums over to our new forums we were unable to retain the identity of the authors, so the old posts will show up as anonymous. Stainless steel fasteners, used in many different industries, are coated for lubricity and antigalling. Xylan 1070 blue ptfe coated stud bolt,ptfe teflon blue. Coated bolts leading exporter of ptfe fasteners, teflon coated stud bolts and nuts, a193 b7 ptfe stud bolts, a193 b7 ptfe hex bolts, a193 b7 ptfe coated hex cap screws and a194 2h ptfe coated. Hex bolts heavy hex bolts b7 heavy hex bolts flange bolts 12 pts sockets per print specials your home for ptfe, teflon, xylan, nickel, stainless steel and non coated fasteners. For some, this might be the most convincing argument. Primer 5325310 clear topcoat fasteners large industrial nuts and bolts corrosion. The water works industry takes advantage of the superior corrosion resistance properties by coating thead bolts for underground service. Fluorocarbon coating ptfe,xylan, teflon, emralon fluorocarbon coating is an organic coating consisting of solid lubricant dispersed in an organic binder and dissolved in a specially formulated mixture of solvents. Technical metal corporation offers a wide variety of specialty fasteners produced in ptfe, or polytetrafluoroethylene, including but not limited to, screws, bolts, hex nuts, washers. Brazos fasteners is a distributor of structural bolts that include mechanically galvanized a325 and b7 heavy hex bolts, in both plain and teflon coated. Astm standards for mechanical fasteners and related process 2nd edition, inch fastener standards 8th edition. Regardless weather you want a xylan 1424 blue a193 b7 stud bolts we consider very standard, or xylan black b16 hex bolts, we are experts at ptfe coated fasteners.
Torquetension relationship for astm a193 b7 bolts and studs. Teflon specialty coating systems suit a variety of applications. Other options include teflon coatings and hotdip galvanising. The clients engineer suggested coating the bolts with an epoxy paint, but that proved infeasible. Clamp load calculated as 75% of the yield strength for the b7 specified in astm a193. To determine the performance of the coated fasteners, bolt tension at a. Extensive testing and field use have proven that the future of coated fasteners lies with fluoropolymer coatings. Ptfe polytetrafluoroethylene, the original fluoropolymer, is a tough yet flexible, material with great electrically insulating properties and excellent resistance to chemicals. Due to the absense of nut locking oxides after extensive exposure to corrosive environments, fasteners with finish ptfe fluoropolymer coated process do not need to be removed by torching. The versatility of these coatings can solve the most difficult nonstick applications, provide excellent dielectric stability, reduce coefficient of friction and with almost total chemical inertness, provide extreme chemical protection. Torquetension relationship for astm a193 b7 bolts and studs tightening torque k 0.
Ptfe coated fasteners ptfe applied coatings ptfe teflon. We carry standard stud bolt stock to include a193 b7 alloy in plain, cadmium, hot dipped galvanized, and teflon coated. Ptfe fasteners xylan coated stud bolts and nuts in stock. Ptfe coated fasteners provides great corrosion resistance, very low coefficient of friction, consistent tensioning and ease of installation and removal. Zinc coated bolts were not thought compatible with the free hf ions in the aluminum mill atmosphere. Ptfe coated bolts polytetrafluoroethylene coated bolts. These bolts also contain an external hex drive, and feature an enlarged bearing surface that extends beyond the hex head like a built in washer. Learn which is right for improving the products you manufacture. Stud bolts, astm a193a193m and asme sa193sa193m, grade b7 stud with 2h heavy hex nut, plain, assembly the information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order.
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