pipe flange manufacturers in india

ASME/ ANSI B16.5 Flange

Refer ASA B16 5 Pipe Flanges Dimensions Metric And ASME B16.5 Industrial Flange Schedule Chart In MM.

ANSI B16.5 Flange

ANSI B16.5 Flange

ASME B16.5 Forged Flanges

ASME B16.5 Forged Flanges

Flanges Manufacturer In India

Flanges Manufacturer In India



Piping Flanges Dimensions In MM

Piping Flanges Dimensions In MM

Forged Stainless Steel Flange Weight Chart

NPS Dimensions In MM Weight In Kilogram
Normal Pipe Size
(Inch.)
DN (Millimeter) FLANGES
O.D.
MM
MM
FLANGE
Thickness.

D

MM
SORF
SW
WNRF BLRF
1/2 15 88.9 11.2 0.4 0.5 0.4
3/4 20 98.6 12.7 0.6 0.7 0.6
1 25 108 14.2 0.8 1 0.9
1 1/4 32 117.3 15.7 1 1.3 1.2
1 1/2 40 127 17.5 1.3 1.7 1.5
2 50 152.4 19.1 2.1 2.6 2.4
2 1/2 65 177.8 22.4 3.3 4.1 3.9
3 80 190.5 23.9 3.9 4.9 4.9
3 1/2 90 215.9 23.9 4.8 6.1 6.2
4 100 228.6 23.9 5.3 6.8 7.0
5 125 254 23.9 6.1 8.6 8.6
6 150 279.4 25.4 7.5 10.6 11.3
8 200 342.9 28.4 12.1 17.6 19.6
10 250 406.4 30.2 16.5 24 28.6
12 300 482.6 31.8 26.2 36.5 43.2
14 350 533.4 35.1 34.6 48.4 58.1
16 400 596.9 36.6 44.8 60.6 76.1
18 450 635 39.6 48.9 68.3 93.7
20 500 698.5 42.9 61.9 84.5 122.0
24 600 812.8 47.8 86.9 115 185.0

6 Common Type Of Pipe Flanges

6 Common Type Of Pipe Flanges

Flange Price List In India

Description Price In India
CS SWRF FLANGE ASTM A105
3/4" X 150# X SCH XS 120.00
1” X 150# X SCH XS 160.00
1-1/2” X 150# X SCH XS 230.00
CS SORF FLANGE ASTM A105
2 X 150# 240.00
3 X 150# 380.00
10 X 150# 2200.00
20 X 150# - 7900.00
CS WNRF FLANGE ASTM A105
2 X 150# X SCH STD 450.00
3 X 150# X SCH STD 700.00
4 X 150# X SCH STD 850.00
6 X 150# X SCH STD 1500.00
CS BLRF FLANGE ASTM A105
3/4 X 150# 120.00
1 X 150# 135.00
1-1/2 X 150# 220.00
2 X 150# 260.00

Please note this is an approx Price of Pipe Flanges in India. For final Flanges Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.


ANSI B16.5 Flanges Specification Format

Standards Specification Of : ASME B16.5 Flange
Manufacturing Shapes RTJ,FF, Raised Face, Lap-Joint Face, Large Tongue & Groove And Small Tongue Groove, Large Male-Female And Small Male-Female
Size Chart 1/2" to 48"
Materials Stainless Steel, Carbon Steel, Alloy Steel, Mild Steel, Duplex Steel & Super Duplex Steel, Inconel, Hastelloy, Copper Nickel, Cast Iron, Wrought Iron.
Flanges Thickness NPS ≤ 18
Bore Diameter Of Flange NPS ≤ 10
Flanges Standards MSS S44, ISO70051, EN-1092, ANSI/ASME B16.5, B16.47 Series A & B, ASME B16.48, ASME B16.36, DIN, BS1560-3.1, API7S-15, API, ISO, UNI, AWWA C207, IS 2062, EN1092, API7S-43, API605, BS4504
ASME B16.5 Ratings 150, 300, 400, 600, 900, 1500, 2500
Production technique
  • Heat treated, Forged and machined
Most common types Threaded / Screwed / Forged / Plate
ASME & ANSI Flange Types Slip-On, Weld Neck, Blind, Lap Joint, Threaded, Socket-Weld
Industries Use Flanges Food Processing & Manufacturing
Municipal & Waterworks Pipe Systems
Power Plants And The Nuclear Power Industry
High Temperature Of Flanges Above 200°C (400°F) For 150LB Or Above 400°C (750°F)
Low Temperature Of Flanges Above -29 °C (−20°F)
Japanese Standards 5K, 10 K, 40 K, 16 K 20 K 30 K, 63 K

Rajendra Piping & Fittings Well-known Flanges Manufacturer In India, We Supplying Different Type Of Flanges Used In Oil And Gas Industry, Check NPT Flange Pressure Rating Class.

Different Type Of ASA B16.5 Flanges Used In Oil And Gas Industry

600LB, SCH 160, 32 Inch, RF, A694 F60, E Table Flange

600LB, SCH 160, 32 Inch, RF, A694 F60, E Table Flange
SCH 80, Class 300, 12 Inch, RFSO Flange

SCH 80, Class 300, 12 Inch, RFSO Flange
600 LB, SCH 20, 12 Inch, RF, Forged Flanges

600 LB, SCH 20, 12 Inch, RF, Forged Flanges

300#, SCH 40, 2 Inch, RF Ends, Pipe Flange

300#, SCH 40, 2 Inch, RF Ends, Pipe Flange
4 Inch, Class 600, SCH 40, RF, PN6 Flanges

4 Inch, Class 600, SCH 40, RF, PN6 Flanges
SCH 20, 900#, 14 Inch, ASME B16.5, Loose Flange

SCH 20, 900#, 14 Inch, ASME B16.5, Loose Flange

SCH 80, 150 Class, 4 Inch, EN 1092-1, PN16, Grooved Flange

SCH 80, 150 Class, 4 Inch, EN 1092-1, PN16, Grooved Flange
SCH 20, Class 300, 10 Inch, ASME B16.5, Gasket Flange

SCH 20, Class 300, 10 Inch, ASME B16.5, Gasket Flange
SCH 180, Class 150, 4 Inch, UNI Flange

SCH 180, Class 150, 4 Inch, UNI Flange

SCH 120, 150#, 14 Inch, ASTM A182 F304, ISO Flange

SCH 120, 150#, 14 Inch, ASTM A182 F304, ISO Flange
SCH 10, 600LB, 6 Inch, EN 10204, RF, ASTM A105N, JIS Flange

SCH 10, 600LB, 6 Inch, EN 10204, RF, ASTM A105N, JIS Flange
Class 2500, SCH 40, 3 Inch, DN 100, ASME B16.5, DIN Flange

Class 2500, SCH 40, 3 Inch, DN 100, ASME B16.5, DIN Flange

Pipe Flange Hole Marking Formula

Pipe Flange Hole Marking Formula

Flange Hole Marking Formula

Refer Flange Material Grades

Material Pipes Fittings Flanges Valves Bolt & Nut
Carbon Steel A106 Grades A A234 Grades WPA A105 A216 Grades WCB A193 Grades B7
A194 Grades 2H
A106 Grades B A234 Grades WPB A105 A216 Grades WCB
A106 Grades C A234 Grades WPC A105 A216 Grades WCB
 
Carbon Steel
Alloy
High-Temp
A335 Grades P1 A234 Grades WP1 A182 Grades F1 A217 Grades WC1 A193 Grades B7
A194 Grades 2H
A335 Grades P11 A234 Grades WP11 A182 Grades F11 A217 Grades WC6
A335 Grades P12 A234 Grades WP12 A182 Grades F12 A217 Grades WC6
A335 Grades P22 A234 Grades WP22 A182 Grades F22 A217 Grades WC9
A335 Grades P5 A234 Grades WP5 A182 Grades F5 A217 Grades C5
A335 Grades P9 A234 Grades WP9 A182 Grades F9 A217 Grades C12
 
Carbon Steel
Alloy
Low-Temp
A333 Grades 6 A420 Grades WPL6 A350 Grades LF2 A352 Grades LCB A320 Grades L7
A194 Grades 7
A333 Grade 3 A420 Grade WPL3 A350 Grade LF3 A352 Grade LC3
 
Austenitic
Stainless
Steel
A312 Grade TP304 A403 Grade WP304 A182 Grade F304 A182 Grade F304 A193 Grade B8
A194 Grade 8
A312 Grade TP316 A403 Grade WP316 A182 Grade F316 A182 Gr F316
A312 Gr TP321 A403 Gr WP321 A182 Gr F321 A182 Gr F321
A312 Gr TP347 A403 Gr WP347 A182 Gr F347 A182 Gr F347

Industrial Pipe Flange Chemical Composition

C

Mn

P

S

Si

Cu

Ni

Cr

Mo

V

0.35

0.60-1.05

0.035

0.04

0.10-0.35

0.4

0.4

0.3

0.12

0.08

maxi.

maxi.

maxi.

maxi. (1)

maxi. (1)

maxi. (1-2)

maxi. (1-2)

maxi.


Standard ANSI Flange Length Chart

Flange H. = Flanges Hight

Flange O.D. = Flanges Outside Diameter

Flange PCD = Flanges Pitch Circum Face Diameter Hole To Hole Dimension

Flange Hole Dia = Flanges Bolting Hole Size

Flange No. = Flanges Number Of Bolting Hole


ASME Flange Bore Diameter

Lap Joint and SORF Flange Bores

Size Tolerance
Normal Pipe Size ≤ 10 +1.0, -0.0 millimeter (+0.03,-0.0 in.)
Normal Pipe Size ≥ 12 +1.5, -0.0 millimeter (+0.06,-0.0 in.)

Counter Bores, NPT Flanges

Size Tolerance
Normal Pipe Size ≤ 10 +1.0, -0.0 millimeter (+0.03,-0.0 in.)
Normal Pipe Size ≥ 12 +1.5, -0.0 millimeter (+0.06,-0.0 in.)

Counter Bores, Welding Flanges

Size Tolerance
1/2 ≤ Normal Pipe Size ≤ 3 ±0.25 millimeter (±0.010 in.)

Check ASME B16.5 Material Tolerances, Type Of ANSI B16.5 Flange According To ASME-DIN-EN, Different Type Of Contact Faces For ASME B16.5 RFSO Flange.

ASME B16.5 Material Tolerances

DimensionFlangeTolerance
A Outside Diameter
  • 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" (1.6 millimeter)
B Diaa of contact face
  • 1/16" raised face: ±1/32" (0.8 millimeter)
  • 1/4" Raised Face, Tongue & Groove (male & female): ±1/64" (0.4 millimeter)
J Dia. 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 Dia. 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)

Type Of ANSI B16.5 According To ASME-DIN-EN

Types EN standard DIN standard Pressure Gr.
BLRF Flange EN1092-1/05 DIN 2527 PN6, 10, 16, 25,
40, 63, 100, 160,
250, 320, 400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
Loose Flange EN1092-1/02 DIN 2641 | 2642 | 2655 | 2656 Pn6, 10, Pn16, 25,
40, 63, 100, 160,
250, 320, 400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
Flat Flange (FF) EN1092-1/01 DIN 2573 | 2576 PN6, PN10, PN16, PN25,
PN40, PN63, PN100, PN160,
PN250, PN320, PN400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
WN Flange EN1092-1/11 DIN 2627-2638 PN6, 10, 16, 25,
40, 63, 100, 160,
250, 320, 400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
Weld Neck Collars EN1092-1/34 DIN 2673 – 2676 PN6, PN10, PN16, PN25,
PN40, 63, PN100, PN160,
PN250, 320, PN400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
Loose Flange EN1092-1/04 DIN 2673 – 2676 PN6, PN10, 16, 25,
40, 63, 100, 160,
250, 320, 400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)

NPT Flange

EN1092-1/13 DIN 2558 | 2565 – 2569 PN6, 10, Pn16, 25,
40, 63, 100, 160,
250, 320, PN400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)
Weld-on Collars EN1092-1/32 DIN 2641 | 2642 | 2655 | 2656 PN6, Pn10, 16, 25,
40, 63, 100, 160,
250, 320, Pn400
S235JR, P250GH / C 22.8, P245GH,
P265GH, P280GH, P355NH, 16Mo3,
13CrMo4-5, P355QH1 / W/TStE 355,
1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4410 (Superduplex), 1.4462 (Duplex)

Type Of Contact Faces For ASME B16.5 Flange

Types of Contact Faces DIN EN 1092-1
Without Raised Face Form A
Raised Face Form B1
Raised Face Form B1
Raised Fac) Form B2
Tongue According to DIN2512 Form C
Groove According to DIN 2512 Form D
Male According to DIN 2513 Form E
Female According to DIN 2513 Form F

Size Chart Of Gasket Flange, Check ANSI 150 Flange Dimensions Chart And ANSI 300 Flange Dimensions.

ASME B16.5 Grooved Flange Size Chart

150# 300# 400# 600# 900# 1500# 2500#
inch milli. inch milli. inch milli. inch milli. inch milli. inch milli. inch milli.
3 A 7 1/2 190.5 81/4 209.6 81/4 209.6 8 1/4 209.6 9 1/2 241 10 1/2 267 12 305
b 15/16 23.8 1 1/8 28.6 11/4 31.8 1 1/4 31.8 1 1/2 38.1 1 7/8 47.6 2 5/8 66.7
D2 5 127 5 127 5 127 5 127 5 127 5 127 5 127
D1 6 152.4 6 5/8 168.3 6 5/8 168.3 6 5/8 168.3 71/2 190.5 8 203 9 228.6
n 4 4 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 7/8 22.2 7/8 22.2 1 25.4 1 1/4 31.8 1 3/8 34.9
3 1/2 A 8 1/2 215.9 9 228.6 9 228.6 9 228.6 - - - - - -
b 15/16 23.8 13/16 30.2 13/8 34.9 13/8 34.9 - - - - - -
D2 5 1/2 139.7 5 /2 139.7 5 1/2 139.7 5 1/2 139.7 - - - - - -
D1 7 177.8 7 1/4 184.2 7 1/4 184.2 7 1/4 184.2 - - - - - -
n 8 8 8 8 8 8 8 8 - - - - - -
d 3/4 19 7/8 22.2 1 25.4 1 25.4 - - - - - -
4 A 9 228.6 10 254 10 254 10 3/4 273 11 1/2 292 12 1/4 311 14 356
b 15/16 23.8 1 1/4 31.7 1 3/8 34.9 1 1/2 38.1 1 3/4 44.4 2 1/8 54 3 76.2
D2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2 6 3/16 157.2
D1 7 1/2 190 7 7/8 200 7 7/8 200 8 1/2 215.9 9 1/4 235 9 1/2 241 10 3/4 273
n 8 8 8 8 8 8 8 8 8 8 8 8 8 8
d 3/4 19 7/8 22.2 1 25.4 1 25.4 1 1/4 31.8 1 3/8 34.9 1 5/8 41.3
5 A 10 254 11 279.4 11 279.4 13 330.2 13 3/4 349 14 3/4 375 16 1/2 419
b 1 5/16 23.8 13/8 34.9 1 1/2 38.1 1 3/4 44.4 2 50.8 2 7/8 73 3 5/8 92.1
D2 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7 7 5/16 185.7
D1 8 1/2 215.9 9 1/4 234.9 9 1/4 234.9 10 1/2 266.7 11 279 11 1/2 292 12 3/4 324
n 8 8 8 8 8 8 8 8 8 8 8 8 8 8
d 7/8 22.2 7/8 22.2 1 25.4 1 1/8 28.6 1 3/8 34.9 1 5/8 41.3 1 7/8 47.6
6 A 11 279 12 1/2 317.5 12 1/2 317.5 14 355.6 15 381 15 1/2 394 19 483
b 1 25.4 17/16 36.5 1 5/8 41.3 1 7/8 47.6 2 3/16 55.6 3 1/4 82.6 4 1/4 108
D2 8 1/2 216 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 215.9 8 1/2 216
D1 9 1/2 241 10 5/8 269.9 10 5/8 269.9 11 1/2 292.1 12 1/2 318 12 1/2 318 14 1/2 368
n 8 8 12 12 12 12 12 12 12 12 12 12 8 8
d 7/8 22.2 7/8 22.2 1 25.4 1 1/8 28.6 1 1/4 31.8 1 1/2 38.1 2 1/8 54
8 A 13 1/2 342.9 15 381 15 381 16 1/2 419 18 1/2 470 19 482.6 21 3/4 552
b 1 1/8 28.6 1 5/8 41.3 1 7/8 47.6 2 3/16 55.6 2 1/2 63.5 3 5/8 92.1 5 127
D2 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9 10 5/8 269.9
D1 11 3/4 298.4 13 330.2 13 330.2 13 3/4 349.2 15 1/2 394.2 15 1/2 394.2 17 1/4 438
n 8 8 12 12 12 12 12 12 12 12 12 12 12 12
d 7/8 22.2 1 25.4 1 1/8 28.6 1 1/4 31.8 1 1/2 38.1 1 3/4 44.5 2 1/8 54
10 A 16 406.4 17 1/2 444.5 17 1/2 444.5 20 508 21 1/2 546 23 584 26 1/2 673
b 1 3/16 30.2 1 7/8 47.6 2 1/8 54 2 1/2 63.5 2 3/4 69.8 4 1/4 108 6 1/2 165
D2 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8 12 3/4 323.8
D1 14 1/4 361.9 15 1/4 387.4 15 1/4 387.4 17 431.8 18 1/2 470 19 482.6 21 1/4 540
n 12 12 16 16 16 16 16 16 16 16 12 12 12 12
d 1 25.4 1 1/8 28.6 1 1/4 31.8 1 3/8 34.9 1 1/2 38.1 2 50.8 2 5/8 66.7

ANSI B16.5 Industrial Pipe Flange Thickness Calculation For Pressure Vessel

ANSI B16.5 Flanges Normal Wall Thickness
NPS Outside Daimeter Sch 10 Sch 20 Sch 30 STD Wall Sch 40 Sch 60 EXT Hvy Sch 80 Sch 100 Sch 120 Sch 140 Sch 160 XX Hvy
½ 0.84 0.083 …….. …….. 0.109 0.109 …….. 0.147 0.147 …….. …….. …….. 0.188 0.294
¾ 1.05 0.083 …….. …….. 0.113 0.113 …….. 0.154 0.154 …….. …….. …….. 0.219 0.308
1 1.315 0.109 …….. …….. 0.133 0.133 …….. 0.179 0.179 …….. …….. …….. 0.25 0.358
1 ¼ 1.66 0.109 …….. …….. 0.14 0.14 …….. 0.191 0.191 …….. …….. …….. 0.25 0.382
1 ½ 1.9 0.109 …….. …….. 0.145 0.145 …….. 0.2 0.2 …….. …….. …….. 0.281 0.4
2 2.375 0.109 …….. …….. 0.154 0.154 …….. 0.218 0.218 …….. …….. …….. 0.344 0.436
2 ½ 2.875 0.12 …….. …….. 0.203 0.203 …….. 0.276 0.276 …….. …….. …….. 0.375 0.552
3 3.5 0.12 …….. …….. 0.216 0.216 …….. 0.3 0.3 …….. …….. …….. 0.438 0.6
3 ½ 4 0.12 …….. …….. 0.226 0.226 …….. 0.318 0.318 …….. …….. …….. …….. 0.636
4 4.5 0.12 …….. …….. 0.237 0.237 …….. 0.337 0.337 …….. 0.438 …….. 0.531 0.674
5 5.563 0.134 …….. …….. 0.258 0.258 …….. 0.375 0.375 …….. 0.5 …….. 0.625 0.75
6 6.625 0.134 …….. …….. 0.28 0.28 …….. 0.432 0.432 …….. 0.562 …….. 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ……..
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ……..
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ……..
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ……..
22 22 0.25 …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ……..
26 26 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
30 30 0.312 0.5 0.625 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
36 36 0.312 0.5 0.625 0.375 0.75 …….. 0.5 …….. …….. …….. …….. …….. ……..
40 40 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

ANSI 150 Flange Dimensions Chart

Nominal Pipe Size
NPS (in.)
Class 150
Diameter of
Flange
(in.)
No.
of
Bolts
Diameter of
Bolts
(in.)
Diameter of
Bolt Holes
(in.)
Bolt
Circle
(in.)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-1/2 4 1/2 0.62 2-3/8
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
1-1/2 5 4 1/2 0.62 3-7/8
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
5 10 8 3/4 0.88 8-1/2
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
10 16 12 7/8 1 14-1/4
12 19 12 7/8 1 17
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
18 25 16 1-1/8 1.25 22-3/4
20 27-1/2 20 1-1/8 1.25 25
24 32 20 1-1/4 1.38 29-1/2

ANSI 300 Flange Dimensions In MM

Nominal Pipe Size(in.)Class 300
Diameter of
Flange
(in.)
No.
of
Bolts
Diameter of
Bolts
(in.)
Diameter of
Bolt Holes
(in.)
Bolt
Circle
(in.)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-3/4 4 1/2 0.62 2-5/8
3/4 4-5/8 4 5/8 0.75 3-1/4
1 4-7/8 4 5/8 0.75 3-1/2
1-1/4 5-1/4 4 5/8 0.75 3-7/8
1-1/2 6-1/8 4 3/4 0.88 4-1/2
2 6-1/2 8 5/8 0.75 5
2-1/2 7-1/2 8 3/4 0.88 5-7/8
3 8-1/4 8 3/4 0.88 6-5/8
3-1/2 9 8 3/4 0.88 7-1/4
4 10 8 3/4 0.88 7-7/8
5 11 8 3/4 0.88 9-1/4
6 12-1/2 12 3/4 0.88 10-5/8
8 15 12 7/8 1 13
10 17-1/2 16 1 1.12 15-1/4
12 20-1/2 16 1-1/8 1.25 17-3/4
14 23 20 1-1/8 1.25 20-1/4
16 25-1/2 20 1-1/4 1.38 22-1/2
18 28 24 1-1/4 1.38 24-3/4
20 30-1/2 24 1-1/4 1.38 27
24 36 24 1-1/2 1.62 32

ANSI 600 Flange Dimensions In MM

Nominal Pipe Size (in.)Class 600
Diameter of
Flange
(in.)
No.
of
Bolts
Diameter of
Bolts
(in.)
Diameter of
Bolt Holes
(in.)
Bolt
Circle
(in.)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-3/4 4 1/2 0.62 2-5/8
3/4 4-5/8 4 5/8 0.75 3-1/4
1 4-7/8 4 5/8 0.75 3-1/2
1-1/4 5-1/4 4 5/8 0.75 3-7/8
1-1/2 6-1/8 4 3/4 0.88 4-1/2
2 6-1/2 8 5/8 0.75 5
2-1/2 7-1/2 8 3/4 0.88 5-7/8
3 8-1/4 8 3/4 0.88 6-5/8
3-1/2 9 8 7/8 1 7-1/4
4 10-3/4 8 7/8 1 8-1/2
5 13 8 1 1.12 10-1/2
6 14 12 1 1.12 11-1/2
8 16-1/2 12 1-1/8 1.25 13-3/4
10 20 16 1-1/4 1.38 17
12 22 20 1-1/4 1.38 19-1/4
14 23-3/4 20 1-3/8 1.5 20-3/4
16 27 20 1-1/2 1.62 23-3/4
18 29-1/4 20 1-5/8 1.75 25-3/4
20 32 24 1-5/8 1.75 28-1/2
24 37 24 1-7/8 2 33

Forged Flange Bolt Chart, View Also ASME B16.5 PDF, ANSI B16.5 Flanges Suppliers In Mumbai, India.

Forged Flange Bolt Chart

Size in InchSize in mmNo of BoltsBolt Size UNCRF Stud LengthISO Stud SizeMachine Bolt Length
1/21541/255M1450
3/42041/265M1450
12541/265M1455
1 1/43241/270M1455
1 1/24041/270M1465
25045/885M1670
2 1/26545/890M1675
38045/890M1675
3 1/29085/890M1675
410085/890M1675
512583/495M2085
615083/4100M2085
820083/4110M2090
10250127/8115M24100
12300127/8120M24100
14350121135M27115
16400161135M27115
18450161 1/8145M30125
20500201 1/8160M30140
24600201 1/4170M33150

ASA B16.5 Flange Pressure Ratings

ANSI B16.5 Flanges Temperature

Flanges

-10°C to 200°C

250°C

300°C

350°C

400°C

425°C

450°C

475°C

6

6

5.5

5

10

10

9

8

7

6

16

16

15

13

11

9

25

25

24

21

17

14

12

9

6

40

40

38

33

28

23

20

15

10

64

64

61

53

44

36

32

24

16

100

100

95

83

70

57

50

37

25

160

160

152

132

112

92

80

60

40