Fitwel Industries LLP is known as a leading manufacture & supplier of Alloy Steel Weld Neck Flanges in India, which is offered in diverse and personalized orders sizes, designs, and shapes for our esteemed clientele. We also offer the same in different grades such as alloy steel weld neck flanges. These Alloy Steel Weld Neck Flanges can be machined, shot-peened and polished in as-built or stress relieved states if required, where rust is the obvious visible evidence of corrosive activity. Solution annealing of our Alloy Steel Weld Neck Flanges is not necessary for the reason that the mechanical properties of the as-built state are showing desired values. An exception to this is that these Alloy Steel Weld Neck Flanges has approximately 24 % chromium, and can be used to resist scaling at temperatures up to 1100 Degree C.
Our Alloy Steel Weld Neck Flanges mainly occurs as a result of environmental factors such as wind exposure, industrial pollution, and elevated temperatures, and is worse closer to the sea, the main cause of saltwater pollution. The high chromium content which is so beneficial to the wet corrosion resistance of these Alloy Steel Weld Neck Flanges is as well highly beneficial to their high-temperature strength and resistance to scaling at elevated temperatures.
A Alloy Steel Weld Neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.
What is Alloy Steel Weld Neck Flanges ? The Welding Neck Flanges (SA WNRF) are often used for high-pressure applications. To order a Alloy Steel Weld Neck flange, it is important to specify the pipe is being used for. This is because the inside diameter of the flange will match the inside diameter of your pipe or Fitting.
Alloy Steel Weld Neck flanges are used in applications where the conditions are severe and critical. Some of these conditions include high pressure, wide fluctuations in temperature and pressure, high temperature, fluids that are volatile and hazardous, and temperatures in the sub-zero range.
The long neck guides the pipe into the flange itself and provides reinforcement that a standard Alloy Steel Weld Neck flange cannot. Typically, the Alloy Steel long Weld Neck flange are the anchors for water-mains or sources of gas being pumped into a larger network of pipes, such as those in a factory or in an apartment building.
A Alloy Steel Weld Neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt welded to a pipe. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts.
Standard : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size : 1/2" (15 NB) to 48" (1200NB)
Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
BS : BS4504 , BS4504, BS1560, BS10
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
Alloy Steel Alloy Steel Weld Neck Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
All dimensions are in "mm" unless noted otherwise.
| NPS | DIA D |
THK B |
DIA A |
DIA OD |
HEIGHT H |
DIA K |
DIA L |
| 1/2 | 3.75 | 0.56 | 1.5 | 0.84 | 2.06 | 2.62 | 5/8 |
| 3/4 | 4.62 | 0.62 | 1.88 | 1.05 | 2.25 | 3.25 | 3/4 |
| 1 | 4.88 | 0.69 | 2.12 | 1.32 | 2.44 | 3.5 | 3/4 |
| 1¼ | 5.25 | 0.81 | 2.5 | 1.66 | 2.62 | 3.88 | 3/4 |
| 1½ | 6.12 | 0.88 | 2.75 | 1.9 | 2.75 | 4.5 | 7/8 |
| 2 | 6.5 | 1 | 3.31 | 2.38 | 2.88 | 5 | 3/4 |
| 2½ | 7.5 | 1.12 | 3.94 | 2.88 | 3.12 | 5.88 | 7/8 |
| 3 | 8.25 | 1.25 | 4.62 | 3.5 | 3.25 | 6.62 | 7/8 |
| 3½ | 9 | 1.38 | 5.25 | 4 | 3.38 | 7.25 | 1 |
| 4 | 10 | 1.38 | 5.75 | 4.5 | 3.5 | 7.88 | 1 |
| 5 | 11 | 1.5 | 7 | 5.56 | 4 | 9.25 | 1 |
| 6 | 12.5 | 1.62 | 8.12 | 6.63 | 4.06 | 10.62 | 1 |
| 8 | 15 | 1.88 | 10.25 | 8.63 | 4.62 | 13 | 1.1/8 |
| 10 | 17.5 | 2.12 | 12.62 | 10.75 | 4.88 | 15.25 | 1¼ |
| 12 | 20.5 | 2.25 | 14.75 | 12.75 | 5.38 | 17.75 | 1.3/8 |
| 14 | 23 | 2.38 | 16.75 | 14 | 5.88 | 20.25 | 1.3/8 |
| 16 | 25.5 | 2.5 | 19 | 16 | 6 | 22.5 | 1½ |
| 18 | 28 | 2.62 | 21 | 18 | 6.5 | 24.75 | 1½ |
| 20 | 30.5 | 2.75 | 23.12 | 20 | 6.62 | 27 | 1.5/8 |
| 24 | 36 | 3 | 27.62 | 24 | 6.88 | 32 | 1.7/8 |
| NPS | NO OF BOLT HOLES |
DIA STUD BOLTS |
LENGTH STUD BOLTS |
| 1/2 | 4 | 1/2 | 3 |
| 3/4 | 4 | 5/8 | 3.5 |
| 1 | 4 | 5/8 | 3.5 |
| 1¼ | 4 | 5/8 | 3.75 |
| 1½ | 4 | 3/4 | 4.25 |
| 2 | 8 | 5/8 | 4.25 |
| 2½ | 8 | 3/4 | 4.75 |
| 3 | 8 | 3/4 | 5 |
| 3½ | 8 | 7/8 | 5.5 |
| 4 | 8 | 7/8 | 5.5 |
| 5 | 8 | 7/8 | 5.75 |
| 6 | 12 | 7/8 | 6 |
| 8 | 12 | 1 | 6.75 |
| 10 | 16 | 1.1/8 | 7.5 |
| 12 | 16 | 1¼ | 8 |
| 14 | 20 | 1¼ | 8.25 |
| 16 | 20 | 1.3/8 | 8.75 |
| 18 | 24 | 1.3/8 | 9 |
| 20 | 24 | 1½ | 9.5 |
| 24 | 24 | 1¾ | 10.5 |
| Alloy Steel Weld Neck Flanges Manufacturers in India | SA WNRF Raised Face Flanges |
| ASME B16.9 Alloy Steel Weld Neck Flanges | Alloy Steel Plate Weld Neck Flanges |
| Alloy Steel Forged Weld Neck Flanges Suppliers | Alloy Steel Plate Steel Weld Neck Flanges Manufacturers |
| ANSI B16.9 Alloy Steel Weld Neck Flanges Dealer | ASME B16.28 Alloy Steel Weld Neck Flanges Exporter |
ASME B16.9 Alloy Steel Weld Neck are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Alloy Steel Weld Neck Flanges through a worldwide network of stock-keeping branches. These Plate & Forged Alloy Steel Weld Neck is used in various industries like:
We are renowned & most acclaimed Manufacturers, Suppliers & Exporter And Stockist of SA WNRF Raised Face forged Weld Neck Flanges in Alloy Steel.
For More Information About, Socket Weld Alloy Steel Weld Neck Please Call 91-22-2382 9256 or Send an Email to sales@fitwelindia.com