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Gayatri Tubes has a unique reputation in the industry for providing high-quality alloy steel F11 flanges. A variety of flanges is useful in different settings of industries. We manufacturer and even export all of them to the clients.
Flanges are a common and popular product in every industry, especially in the piping system. These are useful for joining two components one of which is a pipe. The connection made through flanges is flexible. It means the connected pieces can be dismantled anytime. They offer regular maintenance to the connection during plant operation and such flanges are known as breakup flanges. In order to provide connection, three independent components are used. Bolts, gaskets and flanges are interrelated and connected to provide a secure connection. Alloy Steel F11 Flanges are available as per the suitability of applications. Based on the different classification, flanges are also classified. Depending upon the connection, there are threaded, socket-weld, slip-on, lap joint, weld neck, and blind flanges.
Based on facing types they are further classified as a flat face, ring joint, male type, tongue, female type, groove type, and raised face flanges. All these types are used in various services. For example- for high temperature and pressure services, the RJT face is popular. Raised face type flange is useful in boring application with different temperature and pressure rating. When connecting valves, cast iron equipment and special equipment flat face type flange is useful. The flange face depends on the services can either have serrated or smooth face type. It also depends on the gasket being used along with them.
Almost all flanges are corrosion resistant in chloride and other chemical environments. Also, they possess good high strength working ability at elevated temperatures. They don’t easily get damaged due to the high pressure. Moreover, they offer resistant against nitric acid, sulfuric, chlorine, phosphates and more chemicals. Also, they are perfect for even the toughest working conditions due to their high stability. In mixtures with 20-40 percent of sulphuric acid, they show stress corrosion cracking resistance. At an ambient temperature of 930 degrees F or 500 degrees C, their mechanical properties are impressive. These carbon-free flanges don’t need annealing due to their tough stability.
| STANDARD | UNS | WERKSTOFF NR. |
| Alloy Steel F11 | K11597/K11572 | 1.7335 |
| Specifications | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size | 1/2″NB TO 60″NB |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
| Grade | C | Mn | P | S | Si | Ni | Ch | Mo | Cb |
| F11 | 0.15 | 0.30-0.60 | 0.030 | 0.030 | 0.50-1.00 | - | 1.00-1.50 | 0.44-0.65 | - |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| F11 | 415 | 205 | 20 | - | 121-174 |
