Carbon Steel Long Weld Neck Flanges

Carbon Steel LWN Flange, CS Long Weld Neck Flanges, Carbon Steel RFLWN Flanges, CS Long Welding Neck Flange Suppliers, Carbon Steel Raised Face Long Weld Neck Flange, Carbon Steel Long Welding Neck Flange Manufacturers in India.

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.

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Manufacturing of Long Welding Neck Flange in Factory

Carbon Steel LWNRF Flange, ASTM A105 Long Welding Neck Flanges, Carbon Steel Long Welding Neck Flanges Manufacturer, CS Flat-Face Long Welding Neck Flange, Carbon Steel LWNFF Flange, Carbon Steel Long Weld Neck Flange Suppliers In Mumbai.

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.

Manufacturer of Carbon Steel Long Welding Neck Flange in Mumbai, India, ASTM A350 LTCS Long Weld Neck Flange, CS ASME B16.47 Long Welding Neck Flanges, ASTM A694 High Yield CS Long Welding Neck Flange, Carbon Steel Long Welding Neck Flanges Exporter in India.

CS Long Weld Neck Flanges
Rajdhan Metal

Carbon Steel Long Welding Neck Flanges Material Specification

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.

Carbon Steel Long Weld Neck Flange Dimensions

Carbon Steel Long Weld Neck Flange Dimensions

Carbon Steel Class 150 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 300 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 400 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 600 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 900 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 1500 Long Weld Neck Flange Dimensions

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

Carbon Steel Class 2500 Long Weld Neck Flange Dimensions

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

CS ANSI B16.5 Long Weld Neck Flange Schedule Chart

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

Carbon Steel Long Weld Neck Flange Weight Chart

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 – – – – –

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Specialized in Following ASME B16.5 Carbon Steel Long Weld Neck Flanges

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Carbon Steel Long Weld Neck Flanges Price List

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
Industrial Applications

Carbon Steel Long Weld Neck Flanges Industrial Applications

  • Oil & Gas Industry
  • Power Plants
  • Refinery Industry
  • Petrochemical
  • Marine Industry
Manufacturer and Supplier of Carbon Steel Long Weld Neck Flange in Class 150 Lb, 300 Lb, 400 Lb, 600 Lb, 900 Lb, 1500 Lb and 2500 Lb as per ASME/ ANSI B16.5
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