Stainless Steel Long Weld Neck Flange Manufacturer in India

Check Dimensions of Long Weld Neck Flange in Pn16 and Raised Face A105 Carbon steel Long Weld Neck Flange as per ANSI/ ASME B16.5

View price list 2019 of API 6A LWN Flange in India, Copper LWN Flange Supplier in Mumbai, See Long Weld Neck Flange Awwa C207 Class D Weigh Chart.

Api 6A Long Weld Neck  Flange are similar to a conventional Welding Neck flange. The difference is  the Neck of the Long Weld Neck  Flange A105 is considerably longer as compared to the standard Welding Neck flange. The Long Weld Neck  Flange Jis 10k type is often used as a nozzle for a barrel or a column. 

Carbon Steel Long Weld Neck Flange
Carbon Steel Long Weld Neck Flange
Stainless Steel Long Weld Neck Flange
Stainless Steel Long Weld Neck Flange
Alloy Steel Long Weld Neck Flange
Alloy Steel Long Weld Neck Flange

Table of Content

Generally, a conventional weld neck flange is used extensively for pipes. Long Weld Neck  Flange Asme B16.5 Class 300 often abbreviated and referred to as LWN is used in high pressure and high temperature environments.  These Long Weld Neck  Flange Awwa C207 Class D can also be used in environments where there is fluctuation in the temperature and pressure conditions. For example, the Long Weld Neck  Flange Din En 1092-1 is primarily used in the oil and gas industry.

The long neck of the Long Weld Neck  Flange Class 600 guides the pipe into the flange itself. The Long Weld Neck  Flange Asme B16.5 also provides reinforcement in places where a standard or conventional weld neck flange cannot do so. This reinforcement provided by the Long Weld Neck  Flange Jis 16k is very important for safety in high pressured environments. This holds true for the industrial, commercial and even residential systems, which is why these systems see a high demand for the Typically, the Long Weld Neck  Flange Raised Face tends to exhibit behaviour like that of an anchor for water-mains or sources of gas.

These sources of gas and water mains usually pump or transport water and gases into a larger network of pipe such as those used either in a factory or in an apartment building. Long Weld Neck  flange 150 lbs  are also used in those situations, where the expansion bends or changes the pipe on account of the high pressure of either water or gas.

Long Weld Neck  flange ansi b16. 5 can be made of various materials including carbon steel, stainless steel as well as alloy steel. The properties of each grade Pn16 Long Weld Neck  Flange will differ from the other on account of the material used by the Stainless Steel Long Weld Neck  Flange Manufacturer. For instance, duplex stainless steel Long Weld Neck  flange will have good corrosion resistance ,high tensile strength as well as good performance at elevated temperatures.

Carbon steel Long Weld Neck  flange, typically have good strength. They also offer good hardness and toughness. While alloy steel Long Weld Neck flange, can be altered to impart enhanced mechanical properties like improved strength, corrosion resistance, hardenability, toughness etc. depending on the end-use, the Long Weld Neck  Flange Manufacturers In India can make alterations to the ordered Long Weld Neck  Flange Jis 5k.

 

Long Weld Neck Flange Price List
Long Weld Neck Flange type
Long Weld Neck Flange Price in India
Long Weld Neck Flange Price in USD
Long Weld Neck Flange Price in UAE Dirham
Stainless Steel Long Weld Neck Flange
INR 3866.98 / Kg
USD $44.87 / Kg
AED 185.22 UAE Dirham
Long Weld Neck Flange
INR 6962.31 / Kg
USD $90.45 / Kg
AED 358.974 UAE Dirham
Carbon Steel Long Weld Neck Flange
INR 1772.47 / Kg
USD $20.68 /Kg
AED 84.333 UAE Dirham
Small Long Weld Neck Flange
INR 8329.00 / Kg
USD $100.14 /Kg
AED 431.29 UAE Dirham
Large Long Weld Neck Flange
INR 7649.47 / Kg
USD $100.35 /Kg
AED 390.33 UAE Dirham

 

What is Long Weld Neck Flange ?

The long neck guides the pipe into the flange itself and provides reinforcement that a standard weld neck flange cannot. Long weld-neck flanges also are used in situations expansion bends or changes the pipe because of the high pressure.


Long Weld Neck Flange Specifications
Long Weld Neck Flange Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
ASME B16.5 Long Weld Neck Flange Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Long Weld Neck Flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Long Weld Neck Flange
Long Weld Neck Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Long Weld Neck Flange
UNI 6Bar 10Bar 16Bar 25Bar 40Bar Long Weld Neck Flange
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Long Weld Neck Flange
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Long Weld Neck Flange
EN 6Bar 10Bar 16Bar 25Bar 40Bar Long Weld Neck Flange
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Most common types of Long Weld Neck Flange Forged / Threaded / Screwed / Plate
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Production technique
  • Forged, Heat treated and machined
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
Origin Indian / West Europe / Japan / USA / Korean
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Long Weld Neck Flange Uses & application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.
Manufacturer of

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Long Weld Neck Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Long Weld Neck Flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Export to Saudi Arabia, Peru, Egypt, Indonesia, Brazil, Spain, USA, Canada, Ukraine, Singapore, Thailand, Oman, Ireland, Korea, Iran, India, Dubai
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

 

Long Weld Neck Flange Dimensions/ Long Weld Neck Flange Size Chart
Long Weld Neck Flange Dimensions

ANSI 16.5 Long Weld Neck Flange Dimensions

Pipe
O.D.
Thk. Of
Diameter
Hub
Diameter
Length
Diam. of
Number
Diam. of
Normal
Flange
of Raised
Diameter
Bolt
Flange
of Bore
Through Hub
of Bolts
Holes
Diam.
Min
Face
at Bevel
Circle
inch
O
C
R
A
B
H
H1
BC
n
d
1/2"
95.5
14.3
34.9
38.1
12.7
228. 6
304. 8
66.7
4
15.8
3/4"
117. 5
15.9
42.9
47.6
19.1
228. 6
304. 8
82.5
4
19
1"
124. 0
17.5
50.8
54
25.4
228. 6
304. 8
88.9
4
19
1-1/4"
133. 5
19.1
63.5
63.5
31.8
228. 6
304. 8
98.4
4
19
1-1/2"
155. 5
20.6
73
69.8
38.1
228. 6
304. 8
114.
3
4
22.5
2"
165. 0
22.2
92.1
82.5
50.8
228. 6
304. 8
127.
0
8
19
2-1/2"
190. 5
25.4
104.
8
100.
0
63.5
228. 6
304. 8
149.
2
8
22.5
3"
209. 5
28.6
127.
0
117.
5
76.2
228. 6
304. 8
168.
3
8
22.5
3-1/2"
228. 5
30.2
139.
7
133.
4
88.9
228. 6
304. 8
184.
1
8
22.5
4"
254. 0
31.8
157.
2
146.
0
101. 6
228. 6
304. 8
200.
0
8
22.5
5"
279. 5
34.9
185.
7
177.
8
127. 0
228. 6
304. 8
234.
9
8
22.5
6"
317. 5
36.5
215.
9
206.
4
152. 4
228. 6
304. 8
269.
9
12
22.5
8"
381. 0
41.3
269.
9
260.
3
203. 2
228. 6
304. 8
330.
2
12
25.5
10"
444. 5
47.6
323.
9
320.
7
254. 0
228. 6
304. 8
387.
3
16
28.5
12"
520. 5
50.8
381.
0
374.
6
304. 8
228. 6
304. 8
450.
8
16
31.8
14"
584. 0
54
412.
8
425.
4
355. 6
228. 6
304. 8
514.
3
20
31.8
16"
647. 5
57.2
469.
9
482.
6
406. 4
228. 6
304. 8
571.
5
20
35.1
18"
711. 0
60.3
533.
4
533.
4
457. 2
228. 6
304. 8
628.
6
24
35.1
20"
774. 5
63.5
584.
2
587.
3
508. 0
228. 6
304. 8
685.
8
24
35.1
24"
914. 5
69.9
692.
2
701.
6
609. 6
228. 6
304. 8
812.
8
24
41.2

 

Class 300 Weld Neck Flange Dimensions

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
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

Note: Welding Neck bore is derived from the pipe schedule

 

Weld Neck Flange Class 400 Dimensions
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 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
4 100 255 35 146 114.3 89 157.2 7 200 1.6
5 125 280 38.1 178 141.3 102 185.7 7 235 1.6
6 150 320 41.3 206 168.3 103 215.9 7 269.9 1.6
8 200 380 47.7 260 219.1 117 269.9 7 330 1.6
10 250 445 54 321 273 124 323.8 7 387.4 1.6
12 300 520 57.2 375 323.8 137 381 7 450.8 1.6
14 350 585 60.4 425 355.6 149 412.8 7 514.4 1.6
16 400 650 63.5 483 406.4 152 469.9 7 571.5 1.6
18 450 710 66.7 533 457 165 533.4 7 628.6 1.6
20 500 775 69.9 587 508 168 584.2 7 685.8 1.6
24 600 915 76.2 702 610 175 692.2 7 812.8 1.6

Note: Welding Neck bore is derived from the pipe schedule

 

Weld Neck Flange Dimensions Class 600
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 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

 

Weld Neck Flange Dimensions Class 900
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

 

Class 1500 Weld Neck Flange Dimensions
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 80 265 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

Note: Welding Neck bore is derived from the pipe schedule

 

Class 2500 Weld Neck Flange Dimensions
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 15 135 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

Note: Welding Neck bore is derived from the pipe schedule

Find here Long Weld Neck Flange Flat Face & Raised Face Dimensions, Long Weld Neck Flange Thickness Calculation For Pressure Vessel,  Long Weld Neck Flange Thickness Calculation Formula Xls

JIS Long Weld Neck Flange Dimensions

JIS 16K Long Weld Neck Flange Dimensions, JIS 20K Long Weld Neck Flange Dimensions

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
25 34 34.5 125 14 20 46 50 4 1 67 90 4 19 M16 1.22 1.16
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
-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
150 165.2 166.6 305 24 38 196 202 6 2 230 260 12 25 M22 12.7 9.57
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
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
-550 558.8 562 795 44 70 612 622 10 3 670 720 20 39 M36×3 163 87.9
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 – –
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 – –
900 914.4 919 1185 58 93 968 986 10 5 1030 1090 28 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 – –
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 – –

 

ANSI B16.5 Long Weld Neck Flange Tolerances / Dimensional Tolerances of Weld-Neck Flanges ASME B16.5
Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm		 Inside Diameter
not applicable
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm		 Outside Diameter of Hub
≤ 12 = + 2.4 mm / - 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
not applicable		 Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Thickness
≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0		 Length thru Hub
≤ 18 = + 3.2 mm / - 0.8 mm | ≥ 20 = + 4.8 mm / - 1.6 mm


ANSI B16.5 Long Weld Neck Flange Schedule Chart/ Long Weld Neck Flange Thickness 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 – – – – – –

 

Long Weld Neck Flange Weight Chart/ Long Weld Neck Flange Weight in KG
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 Specification of Long Weld Neck Flange
  •  Alloy Steel High-Temp Long Weld Neck Flange
    •      A182 Gr F1 Long Weld Neck Flange
    •      A182 Gr F11 Long Weld Neck Flange
    •      A182 Gr F12 Long Weld Neck Flange
    •      A182 Gr F22 Long Weld Neck Flange
    •      A182 Gr F5 Long Weld Neck Flange
    •      A182 Gr F9 Long Weld Neck Flange
  •  Alloy Steel Low-Temp Long Weld Neck Flange
    •      A350 Gr LF2 Long Weld Neck Flange
    •      A350 Gr LF3 Long Weld Neck Flange
  •  Austenitic Stainless Steel Long Weld Neck Flange
    •      A182 Gr F304 Long Weld Neck Flange
    •      A182 Gr F316 Long Weld Neck Flange
    •      A182 Gr F321 Long Weld Neck Flange
    •      A182 Gr F347 Long Weld Neck Flange
    •      A182 Gr F304L Long Weld Neck Flange
    •      A182 Gr F316L Long Weld Neck Flange
    •      A182 Gr F317 Long Weld Neck Flange
    •      A182 Gr F317L Long Weld Neck Flange
    •      A182 Gr F321 Long Weld Neck Flange
    •      A182 Gr F310 Long Weld Neck Flange
    •      A182 Gr 347 Long Weld Neck Flange
  •  Nickel Alloy Long Weld Neck Flange
    •      ASTM B564 Long Weld Neck Flange
    •      astm b564 uns n06600 Long Weld Neck Flange
    •      astm b564 uns n06625 Long Weld Neck Flange
    •      astm b564 uns no4400 Long Weld Neck Flange
    •      astm b564 uns n08810 Long Weld Neck Flange
    •      astm b564 uns n08811 Long Weld Neck Flange
    •      astm b564 uns n08825 Long Weld Neck Flange
    •      astm b564 uns n04400 Long Weld Neck Flange
    •      astm b564 uns n10276 Long Weld Neck Flange
    •      astm b564 uns n10665 Long Weld Neck Flange
  •  Titanium Long Weld Neck Flange
    •      astm b381 grade f2 Long Weld Neck Flange
    •      astm b381 f5 Long Weld Neck Flange
    •      astm b381 f3 Long Weld Neck Flange
    •      astm b381 f12 Long Weld Neck Flange
    •      astm b381 f7 Long Weld Neck Flange
    •      Other grades: ASTM B381 F1, F2, F2H, F3, F4, F5, F6, F7,   F7H, F9, F10, F11, F12, F13, F14, F15, F16, F16H, F17, F18,   F19, F20, F21, F23, F24, F25, F26 , F26H, F27, F28, F29, F30,   F31, F32, F33, F34, F35, F36, F37, F38 Long Weld Neck Flange
    •  Carbon Steel Long Weld Neck Flange
      •      A105 Long Weld Neck Flange

 

Type of Long Weld Neck Flange we produce
Long Weld Neck Flange Class 900
Long Weld Neck Flange Flat Face
Long Weld Neck Flange Pn16
Kf Long Weld Neck Flange
Long Weld Neck Flange Class 2500
Long Weld Neck Flange Slip On
Long Weld Neck Flange Din 2527
Long Weld Neck Flange Weight 150# 
Long Weld Neck Flange Din 2576
Long Weld Neck Flange With 1/2 Npt
Long Weld Neck Flange Pn 64
Long Weld Neck Flange Ansi B16.5 150
Long Weld Neck Flange Class 150
Long Weld Neck Flange Threaded
Long Weld Neck Flange Pn10
Long Weld Neck Flange B16.47
Long Weld Neck Flange Pn40
Long Weld Neck Flange Rtj 900
Long Weld Neck Flange Pn 160
Long Weld Neck Flange Rtj
Long Weld Neck Flange Class 1500
Long Weld Neck Flange Npt
Long Weld Neck Flange Dn150 Pn16
Long Weld Neck Flange Jis 5k
Long Weld Neck Flange Class 600
Long Weld Neck Flange Jis B2220
Long Weld Neck Flange Asme B16.5 Class 300
Long Weld Neck Flange Ring Type Joint
Long Weld Neck Flange Din 2633
Long Weld Neck Flange Rtj 1500
Long Weld Neck Flange Class 300
Long Weld Neck Flange With Threaded Hole
Long Weld Neck Flange Din En 1092-1
Long Weld Neck Flange Jis 10k

 

Long Weld Neck Flange Material
Stainless Steel Long Weld Neck Flange ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Carbon Steel Long Weld Neck Flange ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Titanium Long Weld Neck Flange ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Alloy Steel Long Weld Neck Flange ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Copper Nickel Long Weld Neck Flange ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Copper Long Weld Neck Flange T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Inconel Long Weld Neck Flange ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Long Weld Neck Flange
Brass Long Weld Neck Flange 3602 / 2604 / H59 / H62 / etc.
Monel Long Weld Neck Flange ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Hastelloy Long Weld Neck Flange ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Aluminium Long Weld Neck Flange 5052 /6061/ 6063 / 2017 / 7075 / etc.
Alloy 20 Long Weld Neck Flange ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Duplex Long Weld Neck Flange S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Nickel Long Weld Neck Flange ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Incoloy Long Weld Neck Flange ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
Super Duplex Long Weld Neck Flange S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Other Long Weld Neck Flange material Tin bronze, Alumunum bronze, Lead bronze
Nimonic Long Weld Neck Flange Nimonic 75, Nimonic 80A, Nimonic 90
254 Smo Long Weld Neck Flange ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547

 

Look Price of Long Weld Neck Flange Asme B16.5 Class 150, Class 300 and Class 600 also Check Sizes of Long Weld Neck Flange Din En 1092-1

Long Weld Neck Flange Uses
  • Power Plant
  • Oil & Gas
  •  Long Weld Neck Flange For Hydrotest
  •  Long Weld Neck Flange For Pressure Test
  • Cement
  • Chemical
  • Fertilizers
  • Sugar
  • Petrochemical
  • Refineries
  • Breweries
  • Nuclear Power
  • Paper
  • Offshore
  • Long Weld Neck Flange For Hdpe Pipe
  • Long Weld Neck Flange Oil And Gas
  • Mining
  • Construction
  • Shipbuilding
  • Engineering Co. &
  • Oil Mills
  • Steel Plant
  • Railway
  • Defence
  • Ports
  • Government Org. etc.

 

Check Latest price in India
  •  Long Weld Neck Flange Hdpe
  •  Slip Long Weld Neck Flange
  •  Long Weld Neck Flange Plumbing
  •  Api Long Weld Neck Flange
  •  Asme Long Weld Neck Flange
  •  Aluminum Long Weld Neck Flange
  •  Long Weld Neck Flange Asme B16.5
  •  Long Weld Neck Flange Hub
  •  Long Weld Neck Flange With Tap
  •  Harga Long Weld Neck Flange Jis 10k
  •  Jual Long Weld Neck Flange
  •  Long Weld Neck Flange With Hole
  •  Long Weld Neck Flange Water Main
  •  Grayloc Long Weld Neck Flange
  •  Long Weld Neck Flange With Drain
  •  Long Weld Neck Flange With Hub
  •  Api 6a Long Weld Neck Flange
  •  Ansi 600 Long Weld Neck Flange
  •  Tapped Long Weld Neck Flange
  •  Long Weld Neck Flange Vessel
  •  Long Weld Neck Orifice Flange
  •  Long Weld Neck Flange Slip On
  •  A105 Long Weld Neck Flange
  •  Long Weld Neck Flange Ring Type Joint
  •  Long Weld Neck Flange Pipe
  •   Pn16 Long Weld Neck Flange
  •  Long Weld Neck Flange Plate
  •  Raised Face Long Weld Neck Flange
  •  Long Weld Neck Flange Rtj
  •  Awwa C207 Class D Long Weld Neck Flange
  •  Long Weld Neck Flange Asme
  •  Long Weld Neck Flange Need Gasket
  •  B16.5 Long Weld Neck Flange
  •  Long Weld Neck Flange Bolts
  •  Long Weld Neck Flange With Npt Thread
  •   En 1092-1 Long Weld Neck Flange
  •  Long Weld Neck Flange En 1092
  •  Victaulic Long Weld Neck Flange
  •  Long Weld Neck Flange End Connection
  •  Din En 1092-1 Long Weld Neck Flange
  •  Long Weld Neck Flange Face
  •  Class 150 Long Weld Neck Flange
  •  Long Weld Neck Flange Cap
  •  Carbon Steel Long Weld Neck Flange
  •  Long Weld Neck Flange Class 300
  •  Class 600 Long Weld Neck Flange
  •  Long Weld Neck Flange Drilled And Tapped
  •  B16.47 Long Weld Neck Flange
  •  Long Weld Neck Flange Brass
  •  Paddle Long Weld Neck Flange
  •  Long Weld Neck Flange With Bleed Valve
  •  Series B Long Weld Neck Flange
  •  Long Weld Neck Flange Asme B16.5 Class 300
  •  Kf Long Weld Neck Flange
  •  Long Weld Neck Flange Lifting Device
  •  Lifting Lug Long Weld Neck Flange
  •  Long Weld Neck Flange Lockout
  •  Long Weld Neck Flange Npt
  •  Rtj 900 Long Weld Neck Flange
  •  Long Weld Neck Flange Nozzle
  •  Tapped Long Weld Neck Flange
  •  Long Weld Neck Flange Nps
  •  Rtj 1500 Long Weld Neck Flange
  •  Long Weld Neck Flange Need Gasket
  •  Long Weld Neck Flange With Npt Tap
  •  Rtj 2500 Long Weld Neck Flange
  •  Long Weld Neck Flange With Npt Hole
  •  Ring Type Joint Long Weld Neck Flange
  •  Long Weld Neck Flange Od Chart
  •  Long Weld Neck Flange On P&Id
  •  Blind Kidney Flange

 


Stocking Distributors of Super Duplex, Titanium and Nickel Alloy Long Weld Neck Flanges in India, Check Live Long Weld Neck Flange Jis 10k Pressure Rating and 8 Aluminum Long Weld Neck flange Weight.
See Weight of Tapped Long Weld Neck Flange, Paddle Long Weld Neck Flange and Victaulic Long Weld Neck Flange, Check ASME 16.48 spectacle Long Weld Neck dimensions