Guaranteed on time delivery
Gayatri Tubes is manufacturing the best quality of SS 317 / 317L Flanges. Various flanges types are a matter of importance in different industries. All such flanges are available with us. We also manufacture them in precise dimensions that ensure a perfect fit for the flanges to the pipe.Flanges are used to provide connection to pipe and valves and all other components in the piping system. Their structure offers easy cleaning access, modification and inspection. These are connected either through the screwing process or the welding process. Also, flanged joints are desired in some industries that offer tight seal as they are bolted using a gasket in between the two flanges.
There are different types of SS 317 / 317L Flanges among which some are standard while others are less commonly used. Depending upon the application requirement, these flanges are used. Generally, they are an alternative to welded connections in the piping system. Such type of connection facilitates maintenance operations in the system. A welded neck flange as the name suggests is connected through the welding process to the pipe. Such flanges are preferred in applications where high/low temperature and high pressure exist. It thus offers unrestricted flow of liquids in the piping system. However, the dimensions of the pipe and flanges should be matched. Hence, we also provide custom made SS 317 / 317L Flanges. A variation to this flange is a long weld neck flange that has the exception of having a long neck. Barrels, columns and vessels use such flanges. An easy to recognize flange is slip-on flange which is also called a hubbed flange. They have a compact and slim shape. Welding neck flanges have more advantages than others as a connection between pipes, and fittings can be made using it.
SS 317 / 317L Flanges threaded are useful in multiple pressure rating applications and available in different sizes. The low pressure and temperature applications commonly use threaded flanges. Other standard flanges are socket weld, blind and lap joint. All flanges made from SS 317/317L have good strength, corrosion-resistant and weldability and formability. Therefore, they are useful in oil and gas, power plants, thermal plants, petrochemical and other industries.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | - |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
| 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" (15 NB) to 48" (1200NB) |
| 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 | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 - 20.00 | 3.00 - 4.00 | 11.00 - 15.00 | 57.845 min |
| SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 - 20.00 | 3.00 - 4.00 | 11.00 - 15.00 | 57.89 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
