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Stainless Steel Weld Neck Pipe Flanges and Raised Face WNRF Flange manufacturer in India

The design of some flanges is suited to reduce the tension or stress in a piping system. One type of flange is the weld neck or WN flanges. The design of these flanges includes a long neck or what is referred to as a high hub. Its long neck is the reason for many weld neck flanges manufacturers in India referring to it as a High hub flange. The neck of this component is tapered at the top, with the base having a larger diameter than its neck. Due to its tapered neck construction, many in the industry refer to them as tapered hub flanges.

Weld Neck Flange

The Alloy steel Weld Neck Flanges are suited to work in high pressure environments, especially since the stress that was initially accumulated at the base of the flange is evenly distributed in the neck. These flanges can be successfully employed in applications where the pressure applied is as high as 5,000 psi. Although using the appropriate material to produce the Wnrf Flange, like stainless steel or alloy steel is a must for both excellent performances as well as durability. The chemical composition coupled with the design of the component is what makes the Rtj Weld Neck Flange a good fit across applications that deal with both high or low temperatures. In applications where the temperatures range between low to sub-zero, it is challenging to find a design that permits excellent performance. In such conditions, the high, tapered hub, along with the appropriate grade of Stainless Steel Weld Neck Flange will yield good performance in both the corrosion resistance and mechanical properties. This remains one of the most easily identifiable flanges. And the Weld Neck Pipe Flanges is similar to an LWN flange, with the exception of the length of the neck, where it is longer in the latter.

Manufacturer and supplier of Carbon Steel Flat Face Weld Neck Flange and SS 316 Rtj Welding Neck Flange

Table of Contents

 

Stainless Steel Weld Neck Flange Specification Chart

Alloy steel Weld Neck Flanges Manufacturers In India, View SS WNRF Flange Bolt sizes, Series B Welding Neck Flange Dimensions In Mm and online price list

ASME B16.5 Weld Neck Flanges Size Chart 1/2 Inch to 48 Inch
Weld Neck Flanges Pressure Calculation in DIN 6, 10, 16, 25, 40 Bar and PN6 PN16 PN10 PN25 PN64 PN40
Weld Neck Flanges Pressure Rating ANSI Class #150, #900, #300, #2500, #600, #1500 LBS
UNI 6, 16, 10, 25, 40 Bar
JIS 5K, 20 K, 10 K, 16 K, 40 K, 30 K, 63 K
Coating Yellow Transparent, Oil Black Paint, Zinc Plated, Anti-rust Paint, Cold and Hot Dip Galvanized
EN 6Bar 16Bar 10Bar 40Bar25Bar
Most common types Threaded, Plate, Forged, Screwed
Flange Face Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Small Tongue, Large Male-Female, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier
Flanges Marking All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request.
Supplier and Distributors Located in Tehran, Ankara, Bengaluru, Noida, Indore, Rajkot, Surat, Sydney, Port of Spain, Montreal, Gurgaon, Mexico, Bogota, Gimhae si, Khobar, Vadodara, Karachi, Perth, Hyderabad, Lagos, Nagpur, Coimbatore, Jamshedpur, Pimpri Chinchwad, Ahmedabad, Istanbul, Baroda, Ludhiana, Janeiro, New Delhi, Bangalore, Ludhiana, Melbourne, Abu Dhabi, Ernakulam, Caracas, Muscat, Chennai, Howrah, London, Kuwait, Gujarat, Kolkata, Courbevoie, Ahvaz, Mumbai, Kanpur, Dammam, Manama, Santiago, Riyadh, India, Ranchi, Calgary, Thiruvananthapuram

Frequently Used Reducing Weld Neck Flange Types

Weld Neck Pipe Flanges

Weld Neck Pipe Flanges

Raised Face Weld Neck Flange

Raised Face Weld Neck Flange

Reducing Weld Neck Flange

Reducing Weld Neck Flange

6 Weld Neck Flange

6 Weld Neck Flange

En Weld Neck Flange

En Weld Neck Flange

Astm A105n Wn Flange, 10 Inch, Class 150 Lb, Sch 40

Astm A105n Wn Flange, 10 Inch, Class 150 Lb, Sch 40

Astm A182 Weld Neck Flange, 150 Lb, 12 Inch, Sch 40, Rf

Astm A182 Weld Neck Flange, 150 Lb, 12 Inch, Sch 40, Rf

Stainless Steel En 1092-1 Wn Flange, Dn 100, Pn 16

Stainless Steel En 1092-1 Wn Flange, Dn 100, Pn 16

Stainless Steel Weld Neck Flanges

Stainless Steel Weld Neck Flanges

Asme A694 F60 Weld Neck Flange, 14 Inch, 1500 Lb, Sch 160, Rtj

Asme A694 F60 Weld Neck Flange, 14 Inch, 1500 Lb, Sch 160, Rtj

SS Weld Neck Pipe Flanges

SS Weld Neck Pipe Flanges

Ss Forged Wn Flange, Astm A182 F316l, 2 1/2 Inch, Sch 80s, B16.5

Ss Forged Wn Flange, Astm A182 F316l, 2 1/2 Inch, Sch 80s, B16.5

Astm A182 F316l Weld Neck Flange, Ansi B16.5, Class 900, 14 Inch

Astm A182 F316l Weld Neck Flange, Ansi B16.5, Class 900, 14 Inch

Ansi B16.5 150lbs Weld Neck Carbon Steel Pipe Flanges

Ansi B16.5 150lbs Weld Neck Carbon Steel Pipe Flanges

A182 F316 F316l Stainless Steel Weld Neck Flange

A182 F316 F316l Stainless Steel Weld Neck Flange

Ansi Class150 Stainless Steel Weld Neck Flange

Ansi Class150 Stainless Steel Weld Neck Flange

Din Standard Pn10 Titanium Forging Weld Neck Flange

Din Standard Pn10 Titanium Forging Weld Neck Flange

Ansi B16.5 Gr2 Wn Rf Welding Neck Titanium Flange

Ansi B16.5 Gr2 Wn Rf Welding Neck Titanium Flange

Ansi B16.5 Carbon Steel Weld Neck Flange

Ansi B16.5 Carbon Steel Weld Neck Flange

Flat Weld Neck Stainless Steel Floor Flange

Flat Weld Neck Stainless Steel Floor Flange

Ansi B16.5 Class 150 6 Inch 304 Stainless Steel Weld Neck Flange

Ansi B16.5 Class 150 6 Inch 304 Stainless Steel Weld Neck Flange


Raised Face WNRF Flange 150# Dimensions

ø in Inch D b g m a J* h k Holes l Kg.
5 254,0 23,8 185,7 163,5 141,2 128,3 88,9 215,9 8 22,2 9,200
3/4 98,4 12,7 42,9 38,1 26,7 20,8 52,4 69,8 4 15,9 0,700
1 107,9 14,3 50,8 49,2 33,5 26,7 55,6 79,4 4 15,9 1,100
1 1/4 117,5 15,9 63,5 58,8 42,2 35,1 57,1 88,9 4 15,9 1,500
1 1/2 127,0 17,5 73,0 65,1 48,3 40,9 61,9 98,4 4 15,9 1,800
1/2 88,9 11,1 34,9 30,2 21,3 15,7 47,6 60,3 4 15,9 0,500
2 152,4 19,0 92,1 77,8 60,3 52,6 63,5 120,6 4 19,0 2,700
2 1/2 177,8 22,2 104,8 90,5 73,1 62,7 69,8 139,7 4 19,0 4,400
3 190,5 23,8 127,0 107,9 88,9 78,0 69,8 152,4 4 19,0 5,200
3 1/2 215,9 23,8 139,7 122,2 101,6 90,2 71,4 177,8 8 19,0 6,400
4 228,6 23,8 157,2 134,9 114,3 102,4 76,2 190,5 8 19,0 7,500
6 279,4 25,4 215,9 192,1 168,4 154,2 88,9 241,3 8 22,2 11,000
8 342,9 28,6 269,9 246,1 219,1 202,7 101,6 298,4 8 22,2 18,300
10 406,4 30,2 323,8 304,8 273,0 254,5 101,6 361,9 12 25,4 25,000
12 482,6 31,7 381,0 365,1 323,8 304,8 114,3 431,8 12 25,4 39,000
14 533,4 34,9 412,7 400,0 355,6 336,5 127,0 476,2 12 28,6 51,000
16 596,9 36,5 469,9 457,2 406,4 387,3 127,0 539,7 16 28,6 60,000
18 635,0 39,7 533,4 504,8 457,2 438,1 139,7 577,8 16 31,7 71,000
20 698,5 42,9 584,2 558,8 508,0 488,9 144,5 635,0 20 31,7 88,000
22 749,3 46,0 641,2 609,6 558,8 539,7 149,2 692,1 20 34,9 102,000
24 812,8 47,6 692,1 663,6 609,6 590,5 152,4 749,3 20 34,9 119,000

Welding Neck Flange Class 300 Dimensions

Find the Best Wholesale Duplex S31803 Welding Neck Flange suppliers in Mumbai, Buy at trade prices from genuine Stainless Steel WNRF manufacturers in India, Check Weld Neck Flange Weight In Kg online
ø in inches D b g m a J* h k Holes l Kg.
14 584,2 54,0 412,7 425,4 355,6 336,5 142,9 514,3 20 31,7 88,000
1/2 95,2 14,3 34,9 38,1 21,3 15,7 52,4 66,7 4 15,9 0,900
3/4 117,5 15,9 42,9 47,6 26,7 20,8 57,1 82,5 4 19,0 1,500
1 123,8 17,5 50,8 54,0 33,5 26,7 61,9 88,9 4 19,0 1,900
1 1/4 133,3 19,0 63,5 63,5 42,2 35,1 65,1 98,4 4 19,0 2,600
1 1/2 155,6 20,6 73,0 69,8 48,3 40,9 68,3 114,3 4 22,2 3,300
2 165,1 22,2 92,1 84,1 60,3 52,6 69,8 127,0 8 19,0 3,600
2 1/2 190,5 25,4 104,8 100,0 73,1 62,7 76,2 149,2 8 22,2 5,400
3 209,5 28,6 127,0 117,5 88,9 78,0 79,4 168,3 8 22,2 7,400
4 254,0 31,7 157,2 146,0 114,3 102,4 85,7 200,0 8 22,2 11,900
5 279,4 34,9 185,7 177,8 141,2 128,3 98,4 234,9 8 22,2 16,000
6 317,5 36,5 215,9 206,4 168,4 154,2 98,4 269,9 12 22,2 20,200
3 1/2 228,6 30,2 139,7 133,3 101,6 90,2 81,0 184,1 8 22,2 8,900
8 381,0 41,3 269,9 260,3 219,1 202,7 111,1 330,2 12 25,4 31,000
10 444,5 47,6 323,4 320,7 273,0 254,5 117,5 387,3 16 28,6 44,300
12 520,7 50,8 381,0 374,6 323,8 304,8 130,2 450,8 16 31,7 64,000
16 647,7 57,1 469,9 482,6 406,4 387,3 146,0 571,5 20 34,9 113,000
18 711,2 60,3 533,4 533,4 457,2 438,1 158,7 628,6 24 34,9 134,000
20 774,7 63,5 584,2 587,4 508,0 488,9 161,9 685,8 24 34,9 171,000
22 838,2 66,7 641,2 641,2 558,8 539,7 165,1 742,9 24 41,3 195,000
24 914,4 69,8 692,1 701,7 609,6 590,5 168,3 812,8 24 41,3 238,000

Weld Neck Flange Class 600 Dimensions

ø In Inches D b g m J h k Holes l Kg.
14 603,2 69,8 412,7 431,8 359,1 93,7 527,0 20 38,1 100,000
1/2 95,2 14,3 34,9 38,1 22,3 22,2 66,7 4 15,9 0,800
3/4 117,5 15,9 42,9 47,6 27,7 25,4 82,5 4 19,0 1,400
1 123,8 17,5 50,8 54,0 34,5 27,0 88,9 4 19,0 1,600
5 330,2 44,4 185,7 188,9 143,8 60,3 266,7 8 28,6 24,500
1 1/2 155,6 22,2 73,0 69,8 49,5 31,7 114,3 4 22,2 3,100
2 165,1 25,4 92,1 84,1 62,0 36,5 127,0 8 19,0 3,700
2 1/2 190,5 28,6 104,8 100,0 74,7 41,3 149,2 8 22,2 5,400
3 209,5 31,7 127,0 117,5 90,7 46,0 168,3 8 22,2 7,300
3 1/2 228,6 34,9 139,7 133,3 103,4 49,2 184,1 8 25,4 8,900
4 273,0 38,1 157,2 152,4 116,1 54,0 215,9 8 25,4 11,800
6 355,6 47,6 215,9 222,2 170,7 66,7 292,1 12 28,6 29,500
1 1/4 133,3 20,6 63,5 63,5 43,2 28,6 98,4 4 19,0 2,100
8 419,1 55,6 269,9 273,0 221,5 76,2 349,2 12 31,7 43,000
12 558,8 66,7 381,0 400,0 327,1 92,1 488,9 20 34,9 86,000
16 685,8 76,2 469,9 495,3 410,5 106,4 603,2 20 41,3 142,000
18 742,9 82,5 533,4 546,1 461,8 117,5 654,0 20 44,4 175,000
20 812,8 88,9 584,2 609,6 513,1 127,0 723,9 24 44,4 232,000
22 869,9 95,2 641,2 666,7 564,4 133,3 777,9 24 47,6 292,000
10 508,0 63,5 323,8 342,8 276,3 85,7 431,8 16 34,9 70,000
24 939,8 101,6 692,1 717,5 615,9 139,7 838,2 24 50,8 330,000

Class 900 WNRF Flange Dimensions In Mm

Size in Inch Size in mm Outer Diameter Flange Thickness 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 15 120 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 80 240 38.1 127 88.9 102 127 7 190.5 1.6
4 100 290 44.5 159 114.3 114 157.2 7 235 1.6
5 125 350 50.8 190 141.3 127 185.7 7 279.4 1.6
6 150 380 55.6 235 168.3 140 215.9 7 317.5 1.6
8 200 470 63.5 298 219.1 162 269.9 7 393.7 1.6
10 250 545 69.9 368 273 184 323.8 7 469.9 1.6
12 300 610 79.4 419 323.8 200 381 7 533.4 1.6
14 350 640 85.8 451 355.6 213 412.8 7 558.8 1.6
16 400 705 88.9 508 406.4 216 469.9 7 616 1.6
18 450 785 101.6 565 457 229 533.4 7 685.8 1.6
20 500 855 108 622 508 248 584.2 7 749.3 1.6
24 600 1040 139.7 749 610 292 692.2 7 901.7 1.6

Weld Neck Flange Dimensions 1500#

Size in Inch Size in mm Outer diameter Flange thickness Hub Outer diameter Weld Neck OD Welding Neck Length Bore Raised Face Diameter Raised Face 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
2 50 215 38.1 105 60.3 102 92.1 7 165.1 1.6
8 200 485 92.1 292 219.1 213 269.9 7 393.7 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
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
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
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
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
14 350 750 133.4 495 355.6 298 412.8 7 635 1.6
24 600 1170 203.2 762 610 406 692.2 7 990.6 1.6

Reducing Weld Neck Flange Dimensions Class 2500

Size in Inch Size in mm Outer Diameter Flange Thickness Hub Outer diameter Weld Neck Outer diameter Welding Neck Length Bore Raised Face Diameter Raised Face Height PCD Weld Face
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 1/4 32 185 38.1 73 42.2 95 63.5 7 130.2 1.6
12 300 760 184.2 441 323.8 464 381 7 619.1 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
1 25 160 35 57 33.4 89 50.8 7 108 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
1 1/2 40 205 44.5 79 48.3 111 73 7 146 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

Jis Welding Neck Flange Dimension Standard

A PED approved Stainless Steel Weld Neck Flange manufacturers in India, View Weld Neck Flange Price List and A182 F11 WNRF Flange Dimensions Class 2500 online
Nominal Outside Inside Outside Sectional Dimensions of Flange Bolt Hole Nominal Approx.
Dia. of Dia. of Dia. of Dia. of t T Dia. of Hub r Dia. of Dia. of Bolt. Number Hole Bolt Weight
Flange Steel Flange Flange a b Face Raised Face Circle of Bolt Dia. Size (kg)
　 Pipe do D f g Dia Holes h BL SOH
10 17.3 17.8 90 12 16 26 28 4 1 46 65 4 15 M12 0.53 0.52
15 21.7 22.2 95 12 16 30 32 4 1 51 70 4 15 M12 0.6 0.58
20 27.2 27.7 100 14 20 38 42 4 1 56 75 4 15 M12 0.79 0.75
32 42.7 43.2 135 16 22 56 60 5 2 76 100 4 19 M16 1.66 1.53
40 48.6 49.1 140 16 24 62 66 5 2 81 105 4 19 M16 1.79 1.64
50 60.5 61.1 155 16 24 76 80 5 2 96 120 8 19 M16 2.09 1.83
65 76.3 77.1 175 18 26 94 98 5 2 116 140 8 19 M16 3.08 2.58
80 89.1 90 200 20 28 108 112 6 2 132 160 8 23 M20 4.41 3.61
25 34 34.5 125 14 20 46 50 4 1 67 90 4 19 M16 1.22 1.16
-90 101.6 102.6 210 20 30 120 124 6 2 145 170 8 23 M20 4.92 3.89
100 114.3 115.4 225 22 34 134 138 6 2 160 185 8 23 M20 6.29 4.87
125 139.8 141.2 270 22 34 164 170 6 2 195 225 8 25 M22 9.21 7.09
200 216.3 218 350 26 40 244 252 6 2 275 305 12 25 M22 18.4 12
250 267.4 269.5 430 28 44 304 312 6 2 345 380 12 27 M24 30.4 20.1
300 318.5 321 480 30 48 354 364 8 3 395 430 16 27 M24 40.5 24.3
150 165.2 166.6 305 24 38 196 202 6 2 230 260 12 25 M22 12.7 9.57
350 355.6 358.1 540 34 52 398 408 8 3 440 480 16 33 M30×3 57.5 34.4
400 406.4 409 605 38 60 446 456 10 3 495 540 16 33 M30×3 81.7 47.4
450 457.2 460 675 40 64 504 514 10 3 560 605 20 33 M30×3 107 61.8
500 508 511 730 42 68 558 568 10 3 615 660 20 33 M30×3 132 73.7
600 609.6 613 845 46 74 666 676 10 3 720 770 24 39 M36×3 192 98.4
650 660.4 664 895 48 77 704 726 10 5 770 820 24 39 M36×3 – –
700 711.2 715 960 50 80 754 776 10 5 820 875 24 42 M39×3 – –
750 762 766 1020 52 83 806 832 10 5 880 935 24 42 M39×3 – –
-550 558.8 562 795 44 70 612 622 10 3 670 720 20 39 M36×3 163 87.9
800 812.8 817 1085 54 86 865 885 10 5 930 990 24 48 M45×3 – –
850 863.6 868 1135 56 89 916 936 10 5 980 1040 24 48 M45×3 – –
1000 1016 1021 1320 62 99 1070 1098 12 5 1140 1210 28 56 M52×3 – –
1100 1117.6 1123 1420 66 105 1180 1200 12 15 1240 1310 32 56 M52×3 – –
1200 1219.2 1225 1530 70 112 1282 1302 12 5 1350 1420 32 56 M52×3
1300 1320.8 1326 1645 74 5 1450 1530 32 62 M56×3
900 914.4 919 1185 58 93 968 986 10 5 1030 1090 28 48 M45×3 – –
1350 1371.6 1377 1700 76 5 1510 1590 32 62 M56×3
1400 1422.4 1428 1755 78 5 1560 1640 36 62 M56×3
1500 1524 1529 1865 80 5 1670 1750 36 62 M56×3

Weld Neck Flange Manufacturing Process

Weld Neck Flange Manufacturing Process

Weld Neck Flange Schedule Chart

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
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
3/4” 1.050 0.884 – – 0.824 0.824 – 0.742 0.742 – – – 0.612 0.434
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
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
5” 5.563 5.295 – – 5.047 5.047 – 4.813 4.813 – 4.563 – 4.313 4.063
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
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 –
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
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 – – – – – –
42” 42.000 – – – 41.250 – – 41.000 – – – – – –
36” 36.000 35.376 35.000 34.750 35.250 34.500 – 35.000 – – – – – –

SS WNRF Flange Weight Chart

Nom
Pipe
Size		 Class 150LBS Class 300LBS Class 600LBS Class 900LBS Class 1500LBS Class 2500LBS
  Weld Neck Slip On Blind Weld Neck Slip On Blind Weld Neck Slip On Blind Weld Neck Slip On Blind Weld Neck Slip On Blind Weld Neck Slip On Blind
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” 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
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
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
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
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
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
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
16” 61.5 44.5 61 112 88 139 177 150 225 225 192 259 567

Stainless Steel Weld Neck Flange Pressure Ratings

Temperature °F Class 150 LBS Class 300 LBS Class 400 LBS Class 600 LBS Class 900 LBS Class 1500 LBS Class 2500 LBS
-20 to 100 275 720 960 1440 2160 3600 6000
300 215 560 745 1120 1680 2795 4660
1300 20 115 155 235 350 585 970
400 195 515 685 1025 1540 2570 4280
500 170 480 635 955 1435 2390 3980
600 140 450 600 900 1355 2255 3760
650 125 445 590 890 1330 2220 3700
1500 20 40 55 85 125 205 345
700 110 430 580 870 1305 2170 3620
1050 20 345 460 685 1030 1720 2865
200 235 620 825 1240 1860 3095 5160
750 95 425 570 855 1280 2135 3560
800 80 420 565 845 1265 2110 3520
850 65 420 555 835 1255 2090 3480
900 50 415 555 830 1245 2075 3460
950 35 385 515 775 1160 1930 3220
1000 20 350 465 700 1050 1750 2915
1100 20 305 405 610 915 1525 2545
1150 20 235 315 475 710 1185 1970
1200 20 185 245 370 555 925 1545
1250 20 145 195 295 440 735 1230
1350 20 95 130 190 290 480 800
1400 20 75 100 150 225 380 630
1450 20 60 80 115 175 290 485

Weld Neck Flange Tolerances

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

SS Weld Neck Flange Hs Code

HS Code Description Unit
73079190 FLANGES RF WELD NECK 300 STD KGS

Our regular consignments to following Places

Products We supplied to following Locations
Reducing Weld Neck Flange Germany, Czechia, Thailand, Malaysia
6 Weld Neck Flange Philippines, Dammam -KSA, Indonesia, Belgium
En Weld Neck Flange Norway, United Arab Emirates (UAE), Turkey, Malaysia
Astm A105n Wn Flange, 10 Inch, Class 150 Lb, Sch 40 France, Qatar, Europe, Thailand
Astm A182 Weld Neck Flange, 150 Lb, 12 Inch, Sch 40, Rf Bangladesh, Malaysia, USA, Finland
Stainless Steel En 1092-1 Wn Flange, Dn 100, Pn 16 Saudi Arabia (KSA), South Africa, Kuwait, Brazil
Stainless Steel Weld Neck Flange South Africa, Bahrain, Singapore, Singapore
Asme A694 F60 Weld Neck Flange, 14 Inch, 1500 Lb, Sch 160, Rtj UK, Philippines, Australia, Nigeria
Weld Neck Pipe Flange Malaysia, Oman, Hong Kong, UAE
Ss Forged Wn Flange, Astm A182 F316l, 2 1/2 Inch, Sch 80s, B16.5 Taiwan, Malaysia, Los Alamos -Mexico, Philippines
Astm A182 F316l Weld Neck Flange, Ansi B16.5, Class 900, 14 Inch Italy, Chile, Iran, Singapore
Ansi B16.5 150lbs Weld Neck Carbon Steel Pipe Flange Canada, UK, Poland, Ellington -United States
A182 F316 F316l Stainless Steel Weld Neck Flange Russia, Netherlands, Malaysia, Dubai
Ansi Class150 Stainless Steel Weld Neck Flange Spain, Egypt, Mexico, UK
Din Standard Pn10 Titanium Forging Weld Neck Flange Malaysia, United Kingdom -UK, Europe, UAE
Ansi B16.5 Gr2 Wn Rf Welding Neck Titanium Flange Malaysia, Philippines, Canada, Singapore
Ansi B16.5 Carbon Steel Weld Neck Flange Romania, Europe, Japan, Malaysia
Flat Weld Neck Stainless Steel Floor Flange Colombia, Sweden, Malaysia, China
Ansi B16.5 Class 150 6 Inch 304 Stainless Steel Weld Neck Flange South Korea, Singapore, NY 12203 (USA), Malaysia

Our Products

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Email: sales@vineshsteel.com

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