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Long Weld Neck Flanges Manufacturer

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Long Weld Neck Flanges

Stainless Steel Long Weld Neck Flange Manufacturer in India, Stainless Steel 304 Long Weld Neck Flange, ASTM A182 Stainless Steel Long Weld Neck Flange, Stainless Steel 304/304H Long Weld Neck Flange, ASME 16.48 Long Socket Weld Neck Dimensions, Stainless Steel 310 Long Weld Neck Flange Suppliers in India.

Duplex Long Weld Neck Flanges, Duplex Steel UNS S32205 Long Weld Neck Flange Supplier in India, Check Class 150 Duplex Long Weld Neck Flange Dimensions And Class 300 Duplex Steel Long Weld Neck Flange Pressure Rating.

Detailed Information

Long welding neck
A Long Weld Neck Flange is a self-reinforcing Flange connection that is most often used for ASME Pressure Vessels. The Long Weld Neck (LWN) Flange was made to be used instead of a Weld Neck Flange and a piece of pipe for a bolt-up connection to the vessel.

Prashaant Steel & Alloys is known as the pinnacle in the world of metal market for the best quality Long Weld Neck Flanges production in India. Prashaant Steel & Alloys’ large Long Weld Neck Flanges inventory allows us to supply our customers with the pipe fitting they need when they need them. Our inventory includes nickel, monel, inconel, hastelloy, stainless steel, copper, duplex stainless steel, and high nickel alloy flanges & pipe fittings. Long Weld Neck Flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for threaded pipe flanges, the standard height is 1/16″ for threaded pipe flanges under 400#. For threaded pipe flanges of 400# and up, the standard threaded pipe flange raised face height is 1/4″. Prashaant Steel & Alloys manufactures threaded pipe flanges in all steel material grades, including carbon threaded pipe flanges, stainless steel threaded pipe flanges and alloy threaded pipe flanges. Long Weld Neck Flange also has many different threaded pipe flanges in stock and ready to ship.

ANSI B 16.5 Duplex Steel Long Weld Neck flanges offer superior toughness and strength compared to ferritic stainless steels. It depends on the alarm. Duplex Long Weld Neck Flanges have applications in various industries like chemical, transportation, and storage.

The Long Welding Neck Flanges are often used for high-pressure applications. To order a Long Weld Neck flange, it is important to specify the pipe is being used for. This is because the inside diameter of the flange will match the inside diameter of your pipe or Fitting, thus allowing undisturbed product flow and reduces turbulence and erosion at the joints too. Long Weld Neck Flange Joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. Long Weld Neck Flanges are ideal for extreme fluctuations of temperature and in environments where there may be a lot of bending and handling of the flanges.

Long Weld neck Flanges is required when an extended neck is required from the flange’s flat surface, which helps in accommodating the pipe more easily. It acts as a boring extension. It is used in chemical and petroleum industries and used in residential and commercial buildings. It performs well where there is level of stress and temperature fluctuates. Long Weld Neck Flanges have a hub that extends. The Long Weld Neck Flange Jis 10k type is often used as a nozzle for a barrel or a column. Long Weld Neck Flanges are ideal for extreme fluctuations of temperature and in environments where there may be a lot of bending and handling of the flanges.

Long Weld Neck Flanges Specification

Stainless Steel Flanges Specifications

ASTM A182 / ASME SA182

Size Chart of SS Long Weld Neck Flanges

1/2″ (15 NB) to 48″ (1200 NB)

Standards Of ASTM A182 Stainless Steel Long Weld Neck Flanges

ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Class / Pressure rating of SS WN flanges

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

American Standard of SS Flanges

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Grade

ASTM A182 F304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 904L ETC.

Chemical Composition of Stainless Steel Long Weld Neck Flanges

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

SS 304

0.08 max

2 max

0.75 max

0.040 max

0.030 max

18 – 20

8 – 11

SS 316

0.08 max

2 max

0.75 max

0.045 max

0.030 max

16 – 18

2 – 3

10 – 14

0.1 max

SS 309

0.20 max

2 max

1 max

0.045 max

0.030 max

23 max

60

SS 310

0.015 max

2 max

0.015 max

0.020 max

0.015 max

24.00 – 26.00

0.10 max

19.00 – 21.00

54.7 min

SS 317

0.08 max

2 max

1.00 max

0.045 max

0.030 max

18.00 – 20.00

3.00 – 4.00

11.00 – 15.00

57.845 min

SS 321

0.08 max

2.0 max

1.0 max

0.045 max

0.030 max

17.00 – 19.00

0.10 max

9.00 – 12.00

5(C+N) – 0.70 max

SS 904l

0.020 max

2 max

1.00 max

0.040 max

0.030 max

19.00 – 23.00

4.00 – 5.00 max

23.00 – 28.00

1.00 – 2.00

Stainless Steel Long Weld Neck Flanges Mechanical & Physical Properties

Grade

Density

Melting Point

Tensile Strength

Yield Strength (0.2%Offset)

Elongation

SS 304

8.0 g/cm3

1400 °C (2550 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

35 %

SS 310

7.9 g/cm3

1402 °C (2555 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

40 %

SS 316

8.0 g/cm3

1400 °C (2550 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

35 %

SS 317

7.9 g/cm3

1400 °C (2550 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

35 %

SS 321

8.0 g/cm3

1457 °C (2650 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

35 %

SS 347

8.0 g/cm3

1454 °C (2650 °F)

Psi – 75000 , MPa – 515

Psi – 30000 , MPa – 205

35 %

SS 904l

7.95 g/cm3

1350 °C (2460 °F)

Psi – 71000 , MPa – 490

Psi – 32000 , MPa – 220

35 %

ASTM A182 Stainless Steel Weld Neck Flanges Equivalent Grades

STANDARD

WERKSTOFF NR.

UNS

JIS

BS

GOST

AFNOR

EN

SS 304

1.4301

S30400

SUS 304

304S31

08Х18Н10

Z7CN18‐09

X5CrNi18-10

SS 316

1.4401

S31600

SUS 316

316S31

Z7CND17‐11‐02

X5CrNiMo17-12-2

SS 309

1.4828

S30900

SS 310

1.4841

S31000

SUS 310

310S24

20Ch25N20S2

SS 317

1.4449

S31700

SUS 317

SS 321

1.4541

S32100

SUS 321

SS 904l

1.4539

N08904

SUS 904L

904S13

Long Weld Neck Flange Dimensions – Class 150 to Class 2500

Long Weld neck flange dimensions are covered by ASME B16.5, which is about Pipe Flanges and Flanged Fittings for sizes NPS 12″ to 24″ and ASME B16.47 for sizes NPS 26″ to 60″.

During a flange’s dimensional inspection, you should look for

– Outer and inner diameters of the body 
– Bolt circle and bolt hole diameter 
– Thickness of the weld end 
– Length of the Hub 
– Straightness and alignment of the bolt hole

long weld neck flange dimensions

long weld neck flange dimensions class 150

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 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 1 3/8 M33

long weld neck flange dimensions class 300

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 1/2 205 230 1 5/8 M39

 

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
long weld neck flange dimensions class 600
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
long weld neck flange dimensions class 900
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

 

long weld neck flange dimensions class 1500
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
long weld neck flange dimensions class 2500
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

Dimensional Tolerances of Weld-Neck Flanges ASME B16.5/ ANSI B16.5 Long Weld Neck Flange Tolerances

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

Stainless Steel Long Socket Weld Neck Flanges Weight Chart

Standard

Class

Diameter

Bolt Circle Diameter

Number of Bolts

Bolt Size

Diameter of Bolt Hole

AS4087 Flanges

PN14 Flanges

95

67

4

M12

14

AS 2129 Flange

Table C Flanges

95

67

4

13

14

Table D Flanges

95

67

4

13

14

Table E Flanges

95

67

4

13

14

Table F Flanges

95

67

4

13

14

Table H Flanges

114

83

4

16

17

Table J Flanges

114

83

4

16

17

ANSI B16.5 Flanges

ANSI 150 Flanges

89

60

4

13

16

ANSI 300 Flanges

95

67

4

13

16

ANSI 600 Flanges

95

67

4

13

16

ANSI 900 Flanges

121

83

4

19

22

ANSI 1500 Flanges

121

83

4

19

22

ISO 7005 (DIN) Flange

PN6 Flanges

80

55

4

M10

11

PN10 Flanges

95

65

4

M12

14

PN16 Flanges

95

65

4

M12

14

PN20 Flanges

90

60.5

4

M14

16

PN25 Flanges

95

65

4

M12

14

PN40 Flanges

95

65

4

M12

14

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Rajkot, New Delhi, Chandigarh, Bogota, Bangkok, Secunderabad, Rio de Janeiro, Hanoi, Dallas, Courbevoie, Kuala Lumpur, Al Jubail, Dammam, Nagpur, Gurgaon, Sydney, Ankara, Karachi, London, Sharjah, Calgary, Visakhapatnam, Toronto, Vung Tau, Riyadh, Brisbane, Nashik, Milan, Port-of-Spain, Kolkata, Surat, Houston, Baroda, Cairo, Jamshedpur, New York, Ahmedabad, Al Khobar, Kuwait City, Kanpur, Los Angeles, Coimbatore, Vadodara, Thane, Ludhiana, Edmonton, Mumbai, Granada, Faridabad, Singapore, Montreal, Muscat, Abu Dhabi, Geoje-si, Ranchi, Chennai, Bengaluru, Madrid, Lahore, Thiruvananthapuram, Tehran, Ernakulam, Chiyoda, Seoul, Howrah, Algiers, Istanbul, Colombo, Atyrau, Doha, Gimhae-si, Jaipur, Indore, Manama, Navi Mumbai, Jakarta, Pimpri-Chinchwad, Hong Kong, Caracas, Ahvaz, Mexico City, Dubai, Lagos, Perth, Ulsan, Aberdeen, Melbourne, La Victoria, Pune, Noida, Jeddah, Petaling Jaya, Haryana, Santiago, Ho Chi Minh City, Bhopal, Hyderabad, Moscow, Busan, Kazakhstan, South Africa, Portugal, Italy, United States, Singapore, Costa Rica, Libya, Philippines, Afghanistan, Trinidad & Tobago,Tunisia, Finland, Sweden, China, New Zealand, Qatar, Iran, Denmark, Vietnam, Nigeria, Tibet, Peru, Malaysia, India, Jordan, Belarus, Iraq, Ireland, Thailand, Germany, Puerto Rico, Belgium, Mongolia, Greece, Kuwait, Pakistan, Zimbabwe, Ukraine, Canada, Azerbaijan, Romania, Ecuador, Hong Kong, Macau, Gambia, Norway, Namibia, Algeria, Australia, Oman, Bulgaria, Saudi Arabia, United Arab Emirates, France, Austria, Argentina, Mexico, Czech Republic, Iran, Russia, Nepal, Mexico, Yemen, Hungary, Serbia, Estonia, Turkey, Lebanon, Colombia, Slovakia, Taiwan, Kenya, Chile, Switzerland, Sri Lanka, Netherlands, United Kingdom, Egypt, Bahrain, Chile, Bhutan, Nigeria, Brazil, Bolivia, Bangladesh, Venezuela, Lithuania, Angola, Poland, Morocco, Japan, Gabon, Israel, Ghana, South Korea, Croatia, Poland, Spain, Indonesia.

Countries We Deliver

Iran, Venezuela, Saudi Arabia, Slovakia, Romania, Zimbabwe, Spain, Kazakhstan, Canada, Nigeria, Bulgaria, Afghanistan, Thailand, Bangladesh, Poland, United Kingdom, Bahrain, Jordan, Lithuania, Malaysia, France, Nigeria, Japan, Oman, Lebanon, Germany, Croatia, Australia, Puerto Rico, South Korea, Hungary, United States, Bhutan, Mexico, Mexico, Yemen, Singapore, New Zealand, Ecuador, Gabon, Qatar, Denmark, Iran, Netherlands, Norway, Sri Lanka, Belgium, Libya, Kuwait, Pakistan, Gambia, Sweden, Azerbaijan, Argentina, Chile, Ghana, United Arab Emirates, Finland, Nepal, Trinidad and Tobago,Tunisia, Kenya, Peru, Austria, Russia, Ukraine, Italy, Belarus, Bolivia, Serbia, Poland, Mongolia, Turkey, Czech Republic, South Africa, Angola, India, Vietnam, Indonesia, Tibet, Ireland, Costa Rica, Greece, Colombia, Namibia, Iraq, Estonia, Israel, Macau, Philippines, Brazil, Switzerland, Algeria, Morocco, Chile, Portugal, Egypt, Taiwan, China, Hong Kong.

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