Industrial Pipe Flange

ANSI B16.5 Weld Neck Flange in Carbon and Stainless Steel

Get Instant Delivery of BS4504 Carbon Steel WNRF Flange In India, Visit Our ANSI B16.5 Stainless Steel Weld Neck Flange Mill in Mumbai.


The production of a flange requires metals or alloys that are machinable. In addition, to having these properties, manufactures need to have a certain level of ductility to produce the ANSI B16.5 WNRF Flange Dimensions. Hence materials like stainless steel or nickel-based alloys are selected for their manufacture. In particular, Stainless Steel Weld Neck Flange are economical and offer great corrosion resistance properties. Yet, buyers may require some components that lower the cost of the overall application. In times like these, the use of an ASME B16.5 Carbon Steel Weld Neck Flange gives the buyer savings.

However, in terms of its corrosion resistance, the properties remain nullified as lesser elements to alloy would mean that there is no form of resistance against any type of corrosion. But if the buyer were to use an Alloy Steel 150 Welding Neck Flange, there could be some form of inherent corrosion properties, due to the presence of elements. Although carbon steel could be coated or galvanised to achieve minimal resistance. The ASME B16.5 Weld Neck Flange Pressure Rating could be anywhere between class 150 to class 2500.

ASME B16.5 Weld Neck Flange

ASME B16.5 Weld Neck Flange

Stainless Steel Weld Neck Flange

Stainless Steel Weld Neck Flange

ASTM A105 Carbon Steel WNRF Flange

ASTM A105 Carbon Steel WNRF Flange


Weld Neck Flanges Manufacturers In India
Table of Contents


Compare Prices Before You Buy Table D Long Welding Neck Flanges, EN 1092 Weld Neck Pipe Flanges Manufacturers In India, PN16 WNRF Blind Flange Material Specification.


Socket Weld Pipe Flanges Specification Format

Specification : ASME B16.5 Weld Neck Flange
Size Chart 1/2" to 48"
Japanese Standards 16 K 20 K, 5K, 10 K, 40 K, 30 K, 63 K
Pressure Rating ANSI 600 LBS, 2500 LBS 900 LBS, 1500 LBS, Class 150 LBS, 300 LBS
Production technique
  • Heat treated, Forged and machined
Standards MSS S44, ISO70051, EN-1092, DIN, ANSI, ASME/ANSI B16.5/16.36/16.47A/16.47B, BS1560-3.1, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, API7S-15, EN1092, API7S-43, API605, BS4504
EN Standards 40Bar 25Bar 10Bar 16Bar 6Bar
UNI Standards 25Bar 6Bar 40Bar 10Bar 16Bar
Manufacturing Shapes Ring Type Joint, Flat Face, Raised Face, Lap-Joint Face, Small Tongue, Large Tongue & Groove, Large Male-Female, Groove, Small Male-Female
Most common types Threaded / Forged / Plate /Screwed

View schedule 80 WNRF Flange Class 150 And Alloy Steel Weld Neck Flange Dimensions Class 300 & ASTM 182 SS Welding Neck Flange 600 Lbs Dimensions, Accept All Small/ Large Orders of JIS 16k Weld Neck Threaded Flange.


Weld Neck Flange Dimensions ASME B16.5

Weld Neck Flange Dimensions ASME B16.5

Sch 40 WNRF Flange Class 150 Dimensions

Size in Inch Size in Millimeter (OD) Flange Thick. Hub OD Weld Neck OD Welding Neck Length Bore RF Diameter RF Height PCD Weld Face
A B C D E F G H I J
1/2 15 90 9.6 30 21.3 46 Refer Note 34.9 2 60.3 1.6
3/4 20 100 11.2 38 26.7 51 42.9 2 69.9 1.6
1 25 110 12.7 49 33.4 54 50.8 2 79.4 1.6
1 1/4 32 115 14.3 59 42.2 56 63.5 2 88.9 1.6
1 1/2 40 125 15.9 65 48.3 60 73 2 98.4 1.6
2 50 150 17.5 78 60.3 62 92.1 2 120.7 1.6
2 1/2 65 180 20.7 90 73 68 104.8 2 139.7 1.6
3 80 190 22.3 108 88.9 68 127 2 152.4 1.6
3 1/2 90 215 22.3 122 101.6 70 139.7 2 177.8 1.6
4 100 230 22.3 135 114.3 75 157.2 2 190.5 1.6
5 125 255 22.3 164 141.3 87 185.7 2 215.9 1.6
6 150 280 23.9 192 168.3 87 215.9 2 241.3 1.6
8 200 345 27 246 219.1 100 269.9 2 298.5 1.6
10 250 405 28.6 305 273 100 323.8 2 362 1.6
12 300 485 30.2 365 323.8 113 381 2 431.8 1.6
14 350 535 33.4 400 355.6 125 412.8 2 476.3 1.6
16 400 595 35 457 406.4 125 469.9 2 539.8 1.6
18 450 635 38.1 505 457.2 138 533.4 2 577.9 1.6
20 500 700 41.3 559 508 143 584.2 2 635 1.6
24 600 815 46.1 663 610 151 692.2 2 749.3 1.6

300 Lbs Welding Neck Flange Dimensions Table


Size in In Size in Millimeter (OD) Outer Diameter Flange Thick. Hub OD Weld Neck Outer Diameter Welding Neck Length Bore RF Diameter RF Height PCD Weld Face
A B C D E F G H I J
1/2 15 95 12.7 38 21.3 51 Refer Note 34.9 2 66.7 1.6
3/4 20 115 14.3 48 26.7 56 42.9 2 82.6 1.6
1 25 125 15.9 54 33.4 60 50.8 2 88.9 1.6
1 1/4 32 135 17.5 64 42.2 64 63.5 2 98.4 1.6
1 1/2 40 155 19.1 70 48.3 67 73 2 114.3 1.6
2 50 165 20.7 84 60.3 68 92.1 2 127 1.6
2 1/2 65 190 23.9 100 73 75 104.8 2 149.2 1.6
3 80 210 27 117 88.9 78 127 2 168.3 1.6
3 1/2 90 230 28.6 133 101.6 79 139.7 2 184.2 1.6
4 100 255 30.2 146 114.3 84 157.2 2 200 1.6
5 125 280 33.4 178 141.3 97 185.7 2 235 1.6
6 150 320 35 206 168.3 97 215.9 2 269.9 1.6
8 200 380 39.7 260 219.1 110 269.9 2 330.2 1.6
10 250 445 46.1 321 273 116 323.8 2 387.4 1.6
12 300 520 49.3 375 323.8 129 381 2 450.8 1.6
14 350 585 52.4 425 355.6 141 412.8 2 514.4 1.6
16 400 650 55.6 483 406.4 144 469.9 2 571.5 1.6
18 450 710 58.8 533 457 157 533.4 2 628.6 1.6
20 500 775 62 587 508 160 584.2 2 685.8 1.6
24 600 915 68.3 702 610 167 692.2 2 812.8 1.6


Sch 80 600# Weld Neck Flange Dimensions

Size in In. Size in Millimeter (OD) Flange Thick. Hub O.D. Weld Neck O.D. Welding Neck Length Bore RF Diameter RF Height PCD Weld Face
A B C D E F G H I J
1/2 15 95 14.3 38 21.3 52 Refer Note 34.9 7 66.7 1.6
3/4 20 115 15.9 48 26.7 57 42.9 7 82.6 1.6
1 25 125 17.5 54 33.4 62 50.8 7 88.9 1.6
1 1/4 32 135 20.7 64 42.2 67 63.5 7 98.4 1.6
1 1/2 40 155 22.3 70 48.3 70 73 7 114.3 1.6
2 50 165 25.4 84 60.3 73 92.1 7 127 1.6
2 1/2 65 190 28.6 100 73 79 104.8 7 149.2 1.6
3 80 210 31.8 117 88.9 83 127 7 168.3 1.6
3 1/2 90 230 35 133 101.6 86 139.7 7 184.2 1.6
4 100 275 38.1 152 114.3 102 157.2 7 215.9 1.6
5 125 330 44.5 189 141.3 114 185.7 7 266.7 1.6
6 150 355 47.7 222 168.3 117 215.9 7 292.1 1.6
8 200 420 55.6 273 219.1 133 269.9 7 349.2 1.6
10 250 510 63.5 343 273 152 323.8 7 431.8 1.6
12 300 560 66.7 400 323.8 156 381 7 489 1.6
14 350 605 69.9 432 355.6 165 412.8 7 527 1.6
16 400 685 76.2 495 406.4 178 469.9 7 603.2 1.6
18 450 745 82.6 546 457 184 533.4 7 654 1.6
20 500 815 88.9 610 508 190 584.2 7 723.9 1.6
24 600 940 101.6 718 610 203 692.2 7 838.2 1.6

Types Of Stainless Steel Weld Neck Flange


4 inch, Schedule 5, RF 300LB, A182 F5 Welding Neck Flanges

4 inch, Schedule 5, RF 300LB, A182 F5 Welding Neck Flanges

1 inch, 1500#, Schedule 160, DIN 2632, DN10-DN400, Raised Face 304L Wnrf Flange

1 inch, 1500#, Schedule 160, DIN 2632, DN10-DN400, Raised Face 304L Wnrf Flange

3 inch, 125#, Schedule 5, Weld Neck 304L Flanges

3 inch, 125#, Schedule 5, Weld Neck 304L Flanges

4 inch, SCH 40, Class 150, PN25, DN300, ASTM F316L, Raised Face Weld Neck Flange

4 inch, SCH 40, Class 150, PN25, DN300, ASTM F316L, Raised Face Weld Neck Flange

20 inch, Schedule 10S, 150#, EN1092-1, F304L, RF, PN16, DN50, Reducing Weld Neck Flange

20 inch, Schedule 10S, 150#, EN1092-1, F304L, RF, PN16, DN50, Reducing Weld Neck Flange

3 inch, SCH 80, 300LB DN150, PN150, RTJ, ASTM A694 F60 Weld Neck Flange

3 inch, SCH 80, 300LB DN150, PN150, RTJ, ASTM A694 F60 Weld Neck Flange

6 inch, 1500#, WT 34 MM, PN100, RTJ, DN800, ASTM A105N WN Flange

6 inch, 1500#, WT 34 MM, PN100, RTJ, DN800, ASTM A105N WN Flange

4 inch, SCH 80, 300LB, ASTM A105 PN100, DN200, RTJ Weld Neck Flange

4 inch, SCH 80, 300LB, ASTM A105 PN100, DN200, RTJ Weld Neck Flange

3 inch, 600#, DN65, SCH 80S, Weld Neck 316L flange en 1092 1

3 inch, 600#, DN65, SCH 80S, Weld Neck 316L flange en 1092 1

2 inch, 150 MM, DN25, PN100, ASTM A182 F11 Class 2 LWN Flange

2 inch, 150 MM, DN25, PN100, ASTM A182 F11 Class 2 LWN Flange

1 inch, Class 600, ASTM A352 Golden Welding Neck Flange

1 inch, Class 600, ASTM A352 Golden Welding Neck Flange

8 inch, 300LB, SCH 80, S32750, DN200, PN20, RF, Weld Neck Schedule 10 flange

8 inch, 300LB, SCH 80, S32750, DN200, PN20, RF, Weld Neck Schedule 10 flange



Manufacting High-Class ANSI B16.5 1500 Lbs Raised Face Weld Neck Flange, Check BS10 Flat Face Weld Neck Flange Pressure Class, JIS 20k Reducing Weld Neck Flange Available In A Wide Range Of Grades And Shapes.

Din En 1092 1 Welding Neck Flang Pressure Chart

ASME B16.5 Weld Nek Flange pressure rating in psig
Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 285 740 985 1480 2220 3705 6170
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
850 65 320 425 640 955 1595 2655
900 50 230 305 460 690 1150 1915
950 35 135 185 275 410 685 1145
1000 20 85 115 170 255 430 715


Class 1500 Flange WNRF ASME B16.5 Dimensions Table

Size in In. Size in Millimeter (OD) Outer Diameter Flange Thick. Hub Outer Diameter Weld Neck Outer Diameter Welding Neck Length Bore RF Diameter RF Height PCD Weld Face
A B C D E F G H I J
1/2 15 120 22.3 38 21.3 60 Refer Note 34.9 7 82.6 1.6
3/4 20 130 25.4 44 26.7 70 42.9 7 88.9 1.6
1 25 150 28.6 52 33.4 73 50.8 7 101.6 1.6
1 1/4 32 160 28.6 64 42.2 73 63.5 7 111.1 1.6
1 1/2 40 180 31.8 70 48.3 83 73 7 123.8 1.6
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 1.6
3 80 265 47.7 133 88.9 117 127 7 203.2 1.6
4 100 310 54 162 114.3 124 157.2 7 241.3 1.6
5 125 375 73.1 197 141.3 156 185.7 7 292.1 1.6
6 150 395 82.6 229 168.3 171 215.9 7 317.5 1.6
8 200 485 92.1 292 219.1 213 269.9 7 393.7 1.6
10 250 585 108 368 273 254 323.8 7 482.6 1.6
12 300 675 123.9 451 323.8 283 381 7 571.5 1.6
14 350 750 133.4 495 355.6 298 412.8 7 635 1.6
16 400 825 146.1 552 406.4 311 469.9 7 704.8 1.6
18 450 915 162 597 457 327 533.4 7 774.7 1.6
20 500 985 177.8 641 508 356 584.2 7 831.8 1.6
24 600 1170 203.2 762 610 406 692.2 7 990.6 1.6


Schedule 10 2500 Lb Raised Face Weld Neck Flange Dimensions Chart

Size in In. Size in Millimeter (OD) Flange Thick. Hub O.D. Weld Neck O.D. Welding Neck Length Bore RF Diameter RF Height PCD WF
A B C D E F G H I J
1/2 15 135 30.2 43 21.3 73 Refer Note 34.9 7 88.9 1.6
3/4 20 140 31.8 51 26.7 79 42.9 7 95.2 1.6
1 25 160 35 57 33.4 89 50.8 7 108 1.6
1 1/4 32 185 38.1 73 42.2 95 63.5 7 130.2 1.6
1 1/2 40 205 44.5 79 48.3 111 73 7 146 1.6
2 50 235 50.9 95 60.3 127 92.1 7 171.4 1.6
2 1/2 65 265 57.2 114 73 143 104.8 7 196.8 1.6
3 80 305 66.7 133 88.9 168 127 7 228.6 1.6
4 100 355 76.2 165 114.3 190 157.2 7 273 1.6
5 125 420 92.1 203 141.3 229 185.7 7 323.8 1.6
6 150 485 108 235 168.3 273 215.9 7 368.3 1.6
8 200 550 127 305 219.1 318 269.9 7 438.2 1.6
10 250 675 165.1 375 273 419 323.8 7 539.8 1.6
12 300 760 184.2 441 323.8 464 381 7 619.1 1.6


Global Suppliers of Bs10 Table E Weld Neck Flange In India, ASME B16.5 Weld Neck Flange Schedule Chart, Contact US Today For Buy Sch 40 Weld Neck Ring Type Joint Flange, 4 inch Weld Neck Slip On Flange Delivering Everywhere.

BS10 Table E Weld Neck Flange Schedule Chart

ASME B16.5 Weld Neck Flange Weight in inch
NPS O
D		 Sch
10		 Sch
20		 Sch
30		 Std.
Wall		 Sch
40		 Sch
60		 Extra
Strong		 Sch
80		 Sch
100		 Sch
120		 Sch
140		 Sch
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


Tolerances Of Stainless Steel Weld Neck Flange

Dimension Flange Tolerance
A O.D.
  • When O.D. is 24" or less: ±1/16" (1.6 Millimeter)
  • When O.D. is over 24": ±1/8" (3.2 Millimeter)
D Inside Diameter
  • 10" and smaller: ±1/32" (0.8 Millimeter)
  • 12" thru 18": +1/8" (3.2 Millimeter)
  • 20" and larger: -1/16" (1.6Millimeter)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8Millimeter)
  • 1/4" Raised Face, Tongue & Groove (male & female): ±1/64" (0.4 Millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 Millimeter)
  • When hub base is over 24": ±1/8" (3.2 Millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 Millimeter), -1/32" (0.8 Millimeter)
  • 6" and larger: +5/32" (4.0 Millimeter), -1/32 (0.8 Millimeter)
P Drilling
  • Bolt circle: ±1/16" (1.6 Millimeter)
  • Bolt hole spacing: ±1/32" (0.8 Millimeter)
Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 Millimeter) max.
  • 3" and larger ±1/16" (1.6 Millimeter) max.
C Thickness
  • 18" and smaller: ±1/8" (3.2 Millimeter), -0"
  • 20" and larger: ±3/16" (4.8 Millimeter), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 Millimeter)
  • 12" and larger: ±1/8" (3.2 Millimeter)