What are Carbon Steel Long Weld Neck Flanges?
Carbon steel long weld neck flange is a type of flange with a long neck that connects the flange to the pipe. These flanges are made from carbon steel, a popular material choice due to its excellent mechanical properties and cost-effectiveness. Depending on the application, other elements such as manganese, sulfur, and phosphorus can be added to improve the material’s strength and durability.
Carbon Steel Weld Neck Flanges offer excellent structural integrity and reliability. They can withstand heavy loads, vibrations, and thermal stresses, making them ideal for demanding industrial environments. These flanges are commonly used in industries such as oil and gas, petrochemical, power generation, and chemical processing.
One of the advantages of carbon steel long weld neck flange is that it can withstand high levels of pressure and temperature, making it ideal for use in oil and gas, petrochemical, and power generation industries. Its long neck also provides a better flow of fluid, reducing the risk of blockage or disruption of flow. Carbon steel long weld neck flanges are commonly used in pipelines, heat exchangers, and pressure vessels.
They can be coated or galvanized to enhance their ability to withstand rust and corrosion in corrosive environments. Additionally, carbon steel flanges can be utilized with various types of gaskets, ensuring a tight and reliable seal.
Moreover, CS Long Weld Neck Flanges are versatile and can be easily fabricated or customized to meet specific project requirements. They are available in different sizes, pressure ratings, and dimensions, allowing for compatibility with various pipe sizes and flange standards. These flanges can also be designed to accommodate different welding techniques, such as butt welding or socket welding.
Specifications | ASTM A105, A694, A350 / ASME SA105, SA694, SA350 |
Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
Size | 1/2″ (15 NB) to 48″ (1200NB) |
Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Call us to get the latest price list for Carbon Steel Long Welding Neck Flanges in Mumbai, Maharashtra. We have special offers available for CS LWN Flange with the best price.
ze in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | ||||||||
1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 34.9 | 2 | 60.3 | As Required | 4 | 1/2 | 50 | 55 | 5/8 | M14 |
3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 42.9 | 2 | 69.9 | As Required | 4 | 1/2 | 50 | 65 | 5/8 | M14 |
1 | 25 | 110 | 12.7 | 49 | 33.4 | 50.8 | 2 | 79.4 | As Required | 4 | 1/2 | 55 | 65 | 5/8 | M14 |
1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 63.5 | 2 | 88.9 | As Required | 4 | 1/2 | 55 | 70 | 5/8 | M14 |
1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 73 | 2 | 98.4 | As Required | 4 | 1/2 | 65 | 70 | 5/8 | M14 |
2 | 50 | 150 | 17.5 | 78 | 60.3 | 92.1 | 2 | 120.7 | As Required | 4 | 5/8 | 70 | 85 | 3/4 | M16 |
2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 104.8 | 2 | 139.7 | As Required | 4 | 5/8 | 75 | 90 | 3/4 | M16 |
3 | 80 | 190 | 22.3 | 108 | 88.9 | 127 | 2 | 152.4 | As Required | 4 | 5/8 | 75 | 90 | 3/4 | M16 |
3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 139.7 | 2 | 177.8 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
4 | 100 | 230 | 22.3 | 135 | 114.3 | 157.2 | 2 | 190.5 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
5 | 125 | 255 | 22.3 | 164 | 141.3 | 185.7 | 2 | 215.9 | As Required | 8 | 3/4 | 85 | 95 | 7/8 | M20 |
6 | 150 | 280 | 23.9 | 192 | 168.3 | 215.9 | 2 | 241.3 | As Required | 8 | 3/4 | 85 | 100 | 7/8 | M20 |
8 | 200 | 345 | 27 | 246 | 219.1 | 269.9 | 2 | 298.5 | As Required | 8 | 3/4 | 90 | 110 | 7/8 | M20 |
10 | 250 | 405 | 28.6 | 305 | 273 | 323.8 | 2 | 362 | As Required | 12 | 7/8 | 100 | 115 | 1 | M24 |
12 | 300 | 485 | 30.2 | 365 | 323.8 | 381 | 2 | 431.8 | As Required | 12 | 7/8 | 100 | 120 | 1 | M24 |
14 | 350 | 535 | 33.4 | 400 | 355.6 | 412.8 | 2 | 476.3 | As Required | 12 | 1 | 115 | 135 | 1 1/8 | M27 |
16 | 400 | 595 | 35 | 457 | 406.4 | 469.9 | 2 | 539.8 | As Required | 16 | 1 | 115 | 135 | 1 1/8 | M27 |
18 | 450 | 635 | 38.1 | 505 | 457.2 | 533.4 | 2 | 577.9 | As Required | 16 | 1 1/8 | 125 | 145 | 1 1/4 | M30 |
20 | 500 | 700 | 41.3 | 559 | 508 | 584.2 | 2 | 635 | As Required | 20 | 1 1/8 | 140 | 160 | 1 1/4 | M30 |
24 | 600 | 815 | 46.1 | 663 | 610 | 692.2 | 2 | 749.3 | As Required | 20 | 1 1/4 | 150 | 170 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | ||||||||
1/2 | 15 | 95 | 12.7 | 38 | 21.3 | 34.9 | 2 | 66.7 | As Required | 4 | 1/2 | 55 | 65 | 5/8 | M14 |
3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 42.9 | 2 | 82.6 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
1 | 25 | 125 | 15.9 | 54 | 33.4 | 50.8 | 2 | 88.9 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 63.5 | 2 | 98.4 | As Required | 4 | 5/8 | 70 | 85 | 3/4 | M16 |
1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 73 | 2 | 114.3 | As Required | 4 | 3/4 | 75 | 90 | 7/8 | M20 |
2 | 50 | 165 | 20.7 | 84 | 60.3 | 92.1 | 2 | 127 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 104.8 | 2 | 149.2 | As Required | 8 | 3/4 | 85 | 100 | 7/8 | M20 |
3 | 80 | 210 | 27 | 117 | 88.9 | 127 | 2 | 168.3 | As Required | 8 | 3/4 | 90 | 110 | 7/8 | M20 |
3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 139.7 | 2 | 184.2 | As Required | 8 | 3/4 | 95 | 110 | 7/8 | M20 |
4 | 100 | 255 | 30.2 | 146 | 114.3 | 157.2 | 2 | 200 | As Required | 8 | 3/4 | 95 | 115 | 7/8 | M20 |
5 | 125 | 280 | 33.4 | 178 | 141.3 | 185.7 | 2 | 235 | As Required | 8 | 3/4 | 110 | 120 | 7/8 | M20 |
6 | 150 | 320 | 35 | 206 | 168.3 | 215.9 | 2 | 269.9 | As Required | 12 | 3/4 | 110 | 120 | 7/8 | M20 |
8 | 200 | 380 | 39.7 | 260 | 219.1 | 269.9 | 2 | 330.2 | As Required | 12 | 7/8 | 120 | 140 | 1 | M24 |
10 | 250 | 445 | 46.1 | 321 | 273 | 323.8 | 2 | 387.4 | As Required | 16 | 1 | 140 | 160 | 1 1/8 | M27 |
12 | 300 | 520 | 49.3 | 375 | 323.8 | 381 | 2 | 450.8 | As Required | 16 | 1 1/8 | 145 | 170 | 1 1/4 | M30 |
14 | 350 | 585 | 52.4 | 425 | 355.6 | 412.8 | 2 | 514.4 | As Required | 20 | 1 1/8 | 160 | 180 | 1 1/4 | M30 |
16 | 400 | 650 | 55.6 | 483 | 406.4 | 469.9 | 2 | 571.5 | As Required | 20 | 1 1/4 | 165 | 190 | 1 3/8 | M33 |
18 | 450 | 710 | 58.8 | 533 | 457 | 533.4 | 2 | 628.6 | As Required | 24 | 1 1/4 | 170 | 195 | 1 3/8 | M33 |
20 | 500 | 775 | 62 | 587 | 508 | 584.2 | 2 | 685.8 | As Required | 24 | 1 1/4 | 185 | 205 | 1 3/8 | M33 |
24 | 600 | 915 | 68.3 | 702 | 610 | 692.2 | 2 | 812.8 | As Required | 24 | 1 1/2 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 95 | 14.3 | 38 | 21.3 | 34.9 | 7 | 66.7 | As Required | 4 | 1/2 | 75 | 5/8 | M14 |
3/4 | 20 | 115 | 15.9 | 48 | 26.7 | 42.9 | 7 | 82.6 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 | 25 | 125 | 17.5 | 54 | 33.4 | 50.8 | 7 | 88.9 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 1/4 | 32 | 135 | 20.7 | 64 | 42.2 | 63.5 | 7 | 98.4 | As Required | 4 | 5/8 | 95 | 3/4 | M16 |
1 1/2 | 40 | 155 | 22.3 | 70 | 48.3 | 73 | 7 | 114.3 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
2 | 50 | 165 | 25.4 | 84 | 60.3 | 92.1 | 7 | 127 | As Required | 8 | 5/8 | 110 | 3/4 | M16 |
2 1/2 | 65 | 190 | 28.6 | 100 | 73 | 104.8 | 7 | 149.2 | As Required | 8 | 3/4 | 120 | 7/8 | M20 |
3 | 80 | 210 | 31.8 | 117 | 88.9 | 127 | 7 | 168.3 | As Required | 8 | 3/4 | 125 | 7/8 | M20 |
3 1/2 | 90 | 230 | 35 | 133 | 101.6 | N/A | 7 | 184.2 | As Required | 8 | 7/8 | 140 | 1 | M24 |
4 | 100 | 255 | 35 | 146 | 114.3 | 157.2 | 7 | 200 | As Required | 8 | 7/8 | 140 | 1 | M24 |
5 | 125 | 280 | 38.1 | 178 | 141.3 | 185.7 | 7 | 235 | As Required | 8 | 7/8 | 145 | 1 | M24 |
6 | 150 | 320 | 41.3 | 206 | 168.3 | 215.9 | 7 | 269.9 | As Required | 12 | 7/8 | 150 | 1 | M24 |
8 | 200 | 380 | 47.7 | 260 | 219.1 | 269.9 | 7 | 330 | As Required | 12 | 1 | 170 | 1 1/8 | M27 |
10 | 250 | 445 | 54 | 321 | 273 | 323.8 | 7 | 387.4 | As Required | 16 | 1 1/8 | 190 | 1 1/4 | M30 |
12 | 300 | 520 | 57.2 | 375 | 323.8 | 381 | 7 | 450.8 | As Required | 16 | 1 1/4 | 205 | 1 3/8 | M33 |
14 | 350 | 585 | 60.4 | 425 | 355.6 | 412.8 | 7 | 514.4 | As Required | 20 | 1 1/4 | 210 | 1 3/8 | M33 |
16 | 400 | 650 | 63.5 | 483 | 406.4 | 469.9 | 7 | 571.5 | As Required | 20 | 1 3/8 | 220 | 1 1/2 | M36 |
18 | 450 | 710 | 66.7 | 533 | 457 | 533.4 | 7 | 628.6 | As Required | 24 | 1 3/8 | 230 | 1 1/2 | M36 |
20 | 500 | 775 | 69.9 | 587 | 508 | 584.2 | 7 | 685.8 | As Required | 24 | 1 1/2 | 240 | 1 3/4 | M39 |
24 | 600 | 915 | 76.2 | 702 | 610 | 692.2 | 7 | 812.8 | As Required | 24 | 1 3/4 | 265 | 1 7/8 | M45 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 95 | 14.3 | 38 | 21.3 | 34.9 | 7 | 66.7 | As Required | 4 | 1/2 | 75 | 5/8 | M14 |
3/4 | 20 | 115 | 15.9 | 48 | 26.7 | 42.9 | 7 | 82.6 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 | 25 | 125 | 17.5 | 54 | 33.4 | 50.8 | 7 | 88.9 | As Required | 4 | 5/8 | 90 | 3/4 | M16 |
1 1/4 | 32 | 135 | 20.7 | 64 | 42.2 | 63.5 | 7 | 98.4 | As Required | 4 | 5/8 | 95 | 3/4 | M16 |
1 1/2 | 40 | 155 | 22.3 | 70 | 48.3 | 73 | 7 | 114.3 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
2 | 50 | 165 | 25.4 | 84 | 60.3 | 92.1 | 7 | 127 | As Required | 8 | 5/8 | 110 | 3/4 | M16 |
2 1/2 | 65 | 190 | 28.6 | 100 | 73 | 104.8 | 7 | 149.2 | As Required | 8 | 3/4 | 120 | 7/8 | M20 |
3 | 80 | 210 | 31.8 | 117 | 88.9 | 127 | 7 | 168.3 | As Required | 8 | 3/4 | 125 | 7/8 | M20 |
3 1/2 | 90 | 230 | 35 | 133 | 101.6 | N/A | 7 | 184.2 | As Required | 8 | 7/8 | 140 | 1 | M24 |
4 | 100 | 275 | 38.1 | 152 | 114.3 | 157.2 | 7 | 215.9 | As Required | 8 | 7/8 | 145 | 1 | M24 |
5 | 125 | 330 | 44.5 | 189 | 141.3 | 185.7 | 7 | 266.7 | As Required | 8 | 1 | 165 | 1 1/8 | M27 |
6 | 150 | 355 | 47.7 | 222 | 168.3 | 215.9 | 7 | 292.1 | As Required | 12 | 1 | 170 | 1 1/8 | M27 |
8 | 200 | 420 | 55.6 | 273 | 219.1 | 269.9 | 7 | 349.2 | As Required | 12 | 1 1/8 | 190 | 1 1/4 | M30 |
10 | 250 | 510 | 63.5 | 343 | 273 | 323.8 | 7 | 431.8 | As Required | 16 | 1 1/4 | 215 | 1 3/8 | M33 |
12 | 300 | 560 | 66.7 | 400 | 323.8 | 381 | 7 | 489 | As Required | 20 | 1 1/4 | 220 | 1 3/8 | M33 |
14 | 350 | 605 | 69.9 | 432 | 355.6 | 412.8 | 7 | 527 | As Required | 20 | 1 3/8 | 235 | 1 1/2 | M36 |
16 | 400 | 685 | 76.2 | 495 | 406.4 | 469.9 | 7 | 603.2 | As Required | 20 | 1 1/2 | 255 | 1 5/8 | M39 |
18 | 450 | 745 | 82.6 | 546 | 457 | 533.4 | 7 | 654 | As Required | 20 | 1 5/8 | 275 | 1 3/4 | M42 |
20 | 500 | 815 | 88.9 | 610 | 508 | 584.2 | 7 | 723.9 | As Required | 24 | 1 5/8 | 285 | 1 3/4 | M42 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 120 | 22.3 | 38 | 21.3 | 34.9 | 7 | 82.6 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
3/4 | 20 | 130 | 25.4 | 44 | 26.7 | 42.9 | 7 | 88.9 | As Required | 4 | 3/4 | 115 | 7/8 | M20 |
1 | 25 | 150 | 28.6 | 52 | 33.4 | 50.8 | 7 | 101.6 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/4 | 32 | 160 | 28.6 | 64 | 42.2 | 63.5 | 7 | 111.1 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/2 | 40 | 180 | 31.8 | 70 | 48.3 | 73 | 7 | 123.8 | As Required | 4 | 1 | 140 | 1 1/8 | M27 |
2 | 50 | 215 | 38.1 | 105 | 60.3 | 92.1 | 7 | 165.1 | As Required | 8 | 7/8 | 145 | 1 | M24 |
2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 104.8 | 7 | 190.5 | As Required | 8 | 1 | 160 | 1 1/8 | M27 |
3 | 80 | 240 | 38.1 | 127 | 88.9 | 127 | 7 | 190.5 | As Required | 8 | 7/8 | 145 | 1 | M24 |
4 | 100 | 290 | 44.5 | 159 | 114.3 | 157.2 | 7 | 235 | As Required | 8 | 1 1/8 | 170 | 1 1/4 | M30 |
5 | 125 | 350 | 50.8 | 190 | 141.3 | 185.7 | 7 | 279.4 | As Required | 8 | 1 1/4 | 190 | 1 3/8 | M33 |
6 | 150 | 380 | 55.6 | 235 | 168.3 | 215.9 | 7 | 317.5 | As Required | 12 | 1 1/8 | 190 | 1 1/4 | M30 |
8 | 200 | 470 | 63.5 | 298 | 219.1 | 269.9 | 7 | 393.7 | As Required | 12 | 1 3/8 | 220 | 1 1/2 | M36 |
10 | 250 | 545 | 69.9 | 368 | 273 | 323.8 | 7 | 469.9 | As Required | 16 | 1 3/8 | 235 | 1 1/2 | M36 |
12 | 300 | 610 | 79.4 | 419 | 323.8 | 381 | 7 | 533.4 | As Required | 20 | 1 3/8 | 255 | 1 1/2 | M36 |
14 | 350 | 640 | 85.8 | 451 | 355.6 | 412.8 | 7 | 558.8 | As Required | 20 | 1 1/2 | 275 | 1 5/8 | M39 |
16 | 400 | 705 | 88.9 | 508 | 406.4 | 469.9 | 7 | 616 | As Required | 20 | 1 5/8 | 285 | 1 3/4 | M42 |
18 | 450 | 785 | 101.6 | 565 | 457 | 533.4 | 7 | 685.8 | As Required | 20 | 1 7/8 | 325 | 2 | M48 |
20 | 500 | 855 | 108 | 622 | 508 | 584.2 | 7 | 749.3 | As Required | 20 | 2 | 350 | 2 1/8 | M52 |
24 | 600 | 1040 | 139.7 | 749 | 610 | 692.2 | 7 | 901.7 | As Required | 20 | 2 1/2 | 440 | 2 5/8 | M64 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 120 | 22.3 | 38 | 21.3 | 34.9 | 7 | 82.6 | As Required | 4 | 3/4 | 110 | 7/8 | M20 |
3/4 | 20 | 130 | 25.4 | 44 | 26.7 | 42.9 | 7 | 88.9 | As Required | 4 | 3/4 | 115 | 7/8 | M20 |
1 | 25 | 150 | 28.6 | 52 | 33.4 | 50.8 | 7 | 101.6 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/4 | 32 | 160 | 28.6 | 64 | 42.2 | 63.5 | 7 | 111.1 | As Required | 4 | 7/8 | 125 | 1 | M24 |
1 1/2 | 40 | 180 | 31.8 | 70 | 48.3 | 73 | 7 | 123.8 | As Required | 4 | 1 | 140 | 1 1/8 | M27 |
2 | 50 | 215 | 38.1 | 105 | 60.3 | 92.1 | 7 | 165.1 | As Required | 8 | 7/8 | 145 | 1 | M24 |
2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 104.8 | 7 | 190.5 | As Required | 8 | 1 | 160 | 1 1/8 | M27 |
3 | 80 | 265 | 47.7 | 133 | 88.9 | 127 | 7 | 203.2 | As Required | 8 | 1 1/8 | 180 | 1 1/4 | M30 |
4 | 100 | 310 | 54 | 162 | 114.3 | 157.2 | 7 | 241.3 | As Required | 8 | 1 1/4 | 195 | 1 3/8 | M33 |
5 | 125 | 375 | 73.1 | 197 | 141.3 | 185.7 | 7 | 292.1 | As Required | 8 | 1 1/2 | 250 | 1 5/8 | M39 |
6 | 150 | 395 | 82.6 | 229 | 168.3 | 215.9 | 7 | 317.5 | As Required | 12 | 1 3/8 | 260 | 1 1/2 | M36 |
8 | 200 | 485 | 92.1 | 292 | 219.1 | 269.9 | 7 | 393.7 | As Required | 12 | 1 5/8 | 290 | 1 3/4 | M42 |
10 | 250 | 585 | 108 | 368 | 273 | 323.8 | 7 | 482.6 | As Required | 12 | 1 7/8 | 335 | 2 | M48 |
12 | 300 | 675 | 123.9 | 451 | 323.8 | 381 | 7 | 571.5 | As Required | 16 | 2 | 375 | 2 1/8 | M52 |
14 | 350 | 750 | 133.4 | 495 | 355.6 | 412.8 | 7 | 635 | As Required | 16 | 2 1/4 | 405 | 2 3/8 | M56 |
16 | 400 | 825 | 146.1 | 552 | 406.4 | 469.9 | 7 | 704.8 | As Required | 16 | 2 1/2 | 445 | 2 5/8 | M64 |
18 | 450 | 915 | 162 | 597 | 457 | 533.4 | 7 | 774.7 | As Required | 16 | 2 3/4 | 495 | 2 7/8 | M72 |
20 | 500 | 985 | 177.8 | 641 | 508 | 584.2 | 7 | 831.8 | As Required | 16 | 3 | 540 | 3 1/8 | M76 |
24 | 600 | 1170 | 203.2 | 762 | 610 | 692.2 | 7 | 990.6 | As Required | 16 | 3 1/2 | 615 | 3 5/8 | M90 |
Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | RF Stud Length | Hole Size | ISO Stud Size |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | |||||||
1/2 | 15 | 135 | 30.2 | 43 | 21.3 | 34.9 | 7 | 88.9 | As Required | 4 | 3/4 | 120 | 7/8 | M20 |
3/4 | 20 | 140 | 31.8 | 51 | 26.7 | 42.9 | 7 | 95.2 | As Required | 4 | 3/4 | 125 | 7/8 | M20 |
1 | 25 | 160 | 35 | 57 | 33.4 | 50.8 | 7 | 108 | As Required | 4 | 7/8 | 140 | 1 | M24 |
1 1/4 | 32 | 185 | 38.1 | 73 | 42.2 | 63.5 | 7 | 130.2 | As Required | 4 | 1 | 150 | 1 1/8 | M27 |
1 1/2 | 40 | 205 | 44.5 | 79 | 48.3 | 73 | 7 | 146 | As Required | 4 | 1 1/8 | 170 | 1 1/4 | M30 |
2 | 50 | 235 | 50.9 | 95 | 60.3 | 92.1 | 7 | 171.4 | As Required | 8 | 1 | 180 | 1 1/8 | M27 |
2 1/2 | 65 | 265 | 57.2 | 114 | 73 | 104.8 | 7 | 196.8 | As Required | 8 | 1 1/8 | 195 | 1 1/4 | M30 |
3 | 80 | 305 | 66.7 | 133 | 88.9 | 127 | 7 | 228.6 | As Required | 8 | 1 1/4 | 220 | 1 3/8 | M33 |
4 | 100 | 355 | 76.2 | 165 | 114.3 | 157.2 | 7 | 273 | As Required | 8 | 1 1/2 | 255 | 1 5/8 | M39 |
5 | 125 | 420 | 92.1 | 203 | 141.3 | 185.7 | 7 | 323.8 | As Required | 8 | 1 3/4 | 300 | 1 7/8 | M45 |
6 | 150 | 485 | 108 | 235 | 168.3 | 215.9 | 7 | 368.3 | As Required | 8 | 2 | 345 | 2 1/8 | M52 |
8 | 200 | 550 | 127 | 305 | 219.1 | 269.9 | 7 | 438.2 | As Required | 12 | 2 | 380 | 2 1/8 | M52 |
10 | 250 | 675 | 165.1 | 375 | 273 | 323.8 | 7 | 539.8 | As Required | 12 | 2 1/2 | 490 | 2 5/8 | M64 |
12 | 300 | 760 | 184.2 | 441 | 323.8 | 381 | 7 | 619.1 | As Required | 12 | 2 3/4 | 540 | 2 7/8 | M72 |
WELDING NECK FLANGES BORES (in inchines) | ||||||||||||||
Nom Pipe Size |
Outside Diam |
Sched 10 |
Sched 20 |
Sched 30 |
Std. Wall |
Sched 40 |
Sched 60 |
Extra Strong |
Sched 80 |
Sched 100 |
Sched 120 |
Sched 140 |
Sched 160 |
Double Extra Strong |
1/2” | 0.840 | 0.674 | – | – | 0.622 | 0.622 | – | 0.546 | 0.546 | – | – | – | 0.464 | 0.252 |
3/4” | 1.050 | 0.884 | – | – | 0.824 | 0.824 | – | 0.742 | 0.742 | – | – | – | 0.612 | 0.434 |
1” | 1.315 | 1.097 | – | – | 1.049 | 1.049 | – | 0.957 | 0.957 | – | – | – | 0.815 | 0.599 |
1.1/4” | 1.660 | 1.442 | – | – | 1.380 | 1.380 | – | 1.278 | 1.278 | – | – | – | 1.160 | 0.896 |
1.1/2” | 1.900 | 1.682 | – | – | 1.610 | 1.610 | – | 1.500 | 1.500 | – | – | – | 1.338 | 1.100 |
2” | 2.375 | 2.157 | – | – | 2.067 | 2.067 | – | 1.939 | 1.939 | – | – | – | 1.687 | 1.503 |
2.1/2” | 2.875 | 2.635 | – | – | 2.469 | 2.469 | – | 2.323 | 2.323 | – | – | – | 2.125 | 1.771 |
3” | 3.500 | 3.260 | – | – | 3.068 | 3.068 | – | 2.900 | 2.900 | – | – | – | 2.624 | 2.300 |
3-1/2” | 4.000 | 3.760 | – | – | 3.548 | 3.548 | – | 3.364 | 3.364 | – | – | – | – | 2.728 |
4” | 4.500 | 4.260 | – | – | 4.026 | 4.026 | – | 3.826 | 3.826 | – | 3.624 | – | 3.438 | 3.152 |
5” | 5.563 | 5.295 | – | – | 5.047 | 5.047 | – | 4.813 | 4.813 | – | 4.563 | – | 4.313 | 4.063 |
6” | 6.625 | 6.357 | – | – | 6.065 | 6.065 | – | 5.761 | 5.761 | – | 5.501 | – | 5.187 | 4.897 |
8” | 8.625 | 8.329 | 8.125 | 8.071 | 7.981 | 7.981 | 7.813 | 7.625 | 7.625 | 7.437 | 7.187 | 7.001 | 6.813 | 6.875 |
10” | 10.750 | 10.420 | 10.250 | 10.136 | 10.020 | 10.020 | 9.750 | 9.750 | 9.562 | 9.312 | 9.062 | 8.750 | 8.500 | 8.750 |
12” | 12.750 | 12.390 | 12.250 | 12.090 | 12.000 | 11.938 | 11.626 | 11.750 | 11.374 | 11.062 | 10.750 | 10.500 | 10.126 | 10.750 |
14” | 14.000 | 13.500 | 13.376 | 13.250 | 13.250 | 13.124 | 12.812 | 13.000 | 12.500 | 12.124 | 11.814 | 11.500 | 11.188 | – |
16” | 16.000 | 15.500 | 15.376 | 15.250 | 15.250 | 15.000 | 14.688 | 15.000 | 14.312 | 13.938 | 13.564 | 13.124 | 12.812 | – |
18” | 18.000 | 17.500 | 17.376 | 17.124 | 17.250 | 16.876 | 16.500 | 17.000 | 16.124 | 15.688 | 15.250 | 14.876 | 14.438 | – |
20” | 20.000 | 19.500 | 19.250 | 19.000 | 19.250 | 18.812 | 18.376 | 19.000 | 17.938 | 17.438 | 17.000 | 16.500 | 16.062 | – |
24” | 24.000 | 23.500 | 23.250 | 22.876 | 23.250 | 22.624 | 22.062 | 23.000 | 21.562 | 20.938 | 20.376 | 19.876 | 19.312 | – |
30” | 30.000 | 29.376 | 29.000 | 28.750 | 29.250 | – | – | 29.000 | – | – | – | – | – | – |
36” | 36.000 | 35.376 | 35.000 | 34.750 | 35.250 | 34.500 | – | 35.000 | – | – | – | – | – | – |
42” | 42.000 | – | – | – | 41.250 | – | – | 41.000 |
ANSI B16.5 Long Weld Neck FLANGES WEIGHT (KGS) | ||||||||||||||||||
Nom Pipe Size |
150# | 300# | 600# | 900# | 1500# | 2500# | ||||||||||||
WN | S/O | B/K | WN | S/O | B/K | WN | S/O | B/K | WN | S/O | B/K | WN | S/O | B/K | WN | S/O | B/K | |
1/2” | 0.7 | 0.4 | 0.5 | 0.8 | 0.7 | 0.8 | 0.9 | 0.8 | 0.8 | 2.1 | 1.8 | 1.9 | 2.1 | 1.8 | 1.9 | 3.2 | 3 | 3 |
3/4” | 0.8 | 0.7 | 0.8 | 1.4 | 1.2 | 1.2 | 1.6 | 1.4 | 1.4 | 2.7 | 2.4 | 2.7 | 2.7 | 2.4 | 2.7 | 3.6 | 4 | 4.5 |
1” | 1.1 | 0.8 | 0.9 | 1.7 | 1.4 | 1.5 | 1.9 | 1.7 | 1.7 | 3.9 | 3.6 | 3.7 | 3.9 | 3.6 | 3.7 | 5.4 | 5 | 5 |
1.1/4” | 1.5 | 1.2 | 1.3 | 2.2 | 1.8 | 2 | 2.6 | 2.1 | 2.4 | 4.5 | 4.1 | 4.3 | 4.5 | 4.1 | 4.3 | 7.8 | 8 | 8 |
1.1/2” | 1.8 | 1.4 | 1.6 | 3.2 | 2.7 | 2.9 | 3.6 | 3.1 | 3.4 | 6.2 | 5.4 | 5.9 | 6.2 | 5.4 | 5.9 | 11.5 | 11 | 11 |
2” | 2.7 | 2.2 | 2.6 | 3.6 | 3.2 | 3.5 | 4.7 | 3.9 | 4.4 | 11.3 | 10.5 | 11.3 | 11.3 | 10.5 | 11.3 | 19 | 17 | 17 |
2.1/2” | 4.4 | 3.5 | 4.1 | 5.4 | 4.5 | 5.3 | 4.8 | 5.4 | 6.8 | 16.3 | 15.8 | 16 | 16.3 | 15.8 | 16 | 24 | 25 | 25 |
3” | 5.2 | 3.8 | 5.1 | 7.3 | 5.9 | 7.2 | 8.7 | 7.3 | 8.9 | 15 | 12.3 | 16.8 | 21 | 21.5 | 19.5 | 42.6 | 38 | 39 |
3-1/2” | 6.4 | 5 | 6.5 | 8.9 | 7.5 | 9.2 | 11.6 | 9 | 12.7 | – | – | – | – | – | – | – | – | – |
4” | 7.5 | 5.6 | 7.5 | 11.8 | 10 | 12.2 | 18.4 | 16.5 | 18.6 | 24 | 23.2 | 24.5 | 31.8 | 31 | 33 | 64 | 58 | 60 |
5” | 9.2 | 6.5 | 9.2 | 16 | 12.5 | 16 | 31 | 28.5 | 30.8 | 38.5 | 37.5 | 39.5 | 59 | 58.8 | 60 | 111 | 95 | 101 |
6” | 11.0 | 8.1 | 11.8 | 20.2 | 16.5 | 22 | 37 | 36.2 | 38 | 50 | 48.3 | 51.5 | 72 | 74 | 75 | 171 | 146 | 156 |
8” | 18.4 | 13 | 20.4 | 31.2 | 25.5 | 36 | 54.5 | 51.5 | 62.2 | 85 | 75 | 89 | 124 | 112 | 125 | 261 | 220 | 242 |
10” | 25.5 | 18.4 | 31 | 44.3 | 35 | 55 | 98.5 | 76.2 | 102 | 123 | 110 | 131 | 207 | 184 | 215 | 485 | 420 | 465 |
12” | 37 | 28.5 | 47 | 63.5 | 52 | 82.5 | 105 | 89.5 | 132 | 168 | 146 | 187 | 306 | 264 | 316 | 698 | 590 | 665 |
14” | 51 | 37.5 | 60 | 86 | 73 | 108 | 150 | 102 | 158 | 198 | 172 | 224 | 416 | – | – | – | – | – |
16” | 61.5 | 44.5 | 61 | 112 | 88 | 139 | 177 | 150 | 225 | 225 | 192 | 259 | 567 | – | – | – | – | – |
18” | 71.5 | 54 | 93 | 141 | 115 | 178 | 228 | 180 | 285 | 318 | 272 | 383 | 736 | – | – | – | – | – |
20” | 85 | 72 | 127 | 173 | 139 | 228 | 285 | 231 | 365 | 376 | 330 | 482 | 929 | – | – | – | – | – |
24” | 119 | 95 | 190 | 248 | 212 | 350 | 372 | 330 | 532 | 680 | 632 | 905 | 1504 | – | – | – | – | – |
astm a105 class 1500lbs lwnrf flange | FOB Price: US $800-1500 / Ton |
cs ansi b16.5 class 150 long weld neck flange | FOB Price: US $0.28-25 / Piece |
astm a350 low temperature carbon steel lwn flange | FOB Price: US $4.8-500 / Piece |
astm a350 lf6 ltcs long welding neck pipe flanges | FOB Price: US $0.7-600 / Piece |
asme b16.5 high yield cs long weld neck flanges | FOB Price: US $1100-2000 / Ton |
carbon steel rtj 900# lwn flange | FOB Price: US $1200-3000 / Ton |
carbon steel lwn flange manufacturer | FOB Price: US $2.30-3.24 / Kilogram |
carbon steel a105 raised face Long Welding neck flange | FOB Price: US $0.14-1200 / Piece |
high quality carbon steel rflwn flanges | FOB Price: US $0.27-1300 / Piece |
ansi b16.5 carbon steel class 900 long weld neck flanges | FOB Price: US $0.25-1200 / Piece |
din 2634 pn 25 carbon steel lwnrf flange supplier | FOB Price: US $7-17 / Kilogram |
astm a694 high yield carbon steel lwnff flange | FOB Price: US $1100-1200 / Ton |
different sizes of carbon steel long weld neck flanges | FOB Price: US $0.20-1000 / Piece |
low temperature steel a350 lf3 lwnrf flange | FOB Price: US $0.6-900 / Piece |
asme b16.47 series a and b long weld neck flanges | FOB Price: US $4-9 / Piece |