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Steber Steel Solutions

Flange Manufacturer in India

Flange

Flange Quick Overview
Size 1/2" - 48"
Standards ASME B16.47, MSS SP44, ASME B16.5, ASME B16.36
Pressure Class 150 -2500
Production Method Heat treated , Machined ,Forged
Schedule SCH 10 To SCH 160
Types Slip On, Blind, Weld Neck, Threaded
MTC EN 10204 Type 3.1/ 3.2

Manufacturer Of Forged Steel Flanges For Oil And Gas Pipelines

Slip on Flange

Slip on Flange

Blind Flanges

Blind Flanges

Weld Neck Flange

Weld Neck Flange


Table of Contents


Flange Specification

Flanges Sizes

  • NPS: 1/2″ to 48″
  • SCH: Sch 5 to XXS
  • Class:150 to 2500#

Sizes

Pipe Flange Standards

  • ASME SA 182 | ASTM A105
  • MSS SP44
  • ASME B16.47 Series A & B
  • ASME B16.5
Standards

SORF Flange Threads

  • NPT
  • FNPT, MNPT
  • BSPT
  • BSPP
Threads

Grooved Flange Testing

  • Hardness test
  • Pressure
  • Tensile
  • PMI

Testing

Forged Flanges Face Types

  • RTJ
  • RF
  • FF
  • T&G
Face Types

Blind Flange Origin

  • European
  • American
  • Janpanese
  • Korean

Origin

Flange Types

  • Blind
  • Weld Neck
  • Socket Weld
  • Slip On
  • Plate Flanges
  • Lap Joint Flange
Types

Spectacle Blind Flanges Process

  • Rolling
  • Casting
  • Forging
  • Cutting

Process

Weld Neck Flange Finish

  • Mirror
  • Smooth
  • Serrated
  • Spiral/Concentric


Finish

Stainless Steel Flat Flange DIN Standards

  • DIN 2573
  • DIN 2501
  • DIN 2543
  • DIN 2633


Standards

SS Slip on Flange Markings

  • Grade
  • ASTM standard
  • Origin of material
  • Pressure class
  • Manufacturers logo

Markings

Stainless Steel Ring Flange Pressure Class

  • 150 Lbs
  • 600 Lbs
  • 2500 Lbs
  • 1500 Lbs
  • 900 Lbs
  • 300 Lbs
Pressure Class

Available Stock Of Flanges In Different Material

Flange Manufacturer In India Has Ready Stock In Different Materials

ANSI B 16.5 Class 150 Flange Dimension Chart

Flange Supplier In India Provides Custom Dimensions Upon Request

ANSI B 16.5 Class 150 Flange Dimension Chart
Size T O R X Bolt
Circle Dia.		 L2 B2 H L3 r D B3
1/2 0.44 3.50 1.38 1.19 2.38 1.88 0.62 0.84 0.62 0.12 0.38 0.90
1 0.56 4.25 2.00 1.94 3.12 2.19 1.05 1.32 0.69 0.12 0.50 1.38
1-1/2 0.68 5.00 2.88 2.56 3.88 2.44 1.61 1.90 0.88 0.25 0.62 1.97
2 0.75 6.00 3.62 3.06 4.75 2.50 2.07 2.38 1.00 0.31 0.69 2.46
3 0.94 7.50 5.00 4.25 6.00 2.75 3.07 3.50 1.19 0.38 0.81 3.60
4 0.94 9.00 6.19 5.31 7.50 3.00 4.03 4.50 1.31 0.44 0.94 4.60
6 1.00 11.00 8.50 7.56 9.50 3.50 6.07 6.63 1.56 0.50 1.06 6.75
10 1.19 16.00 12.75 12.00 14.25 4.00 10.02 10.75 1.94 0.50 1.31 10.92
14 1.38 21.00 16.25 15.75 18.75 5.00 13.25 14.00 3.12 0.50 1.63 14.18
18 1.56 25.00 21.00 19.88 22.75 5.50 17.25 18.00 3.81 0.50 1.94 18.20
22 1.81 29.50 25.25 24.25 27.25 5.88 21.25 22.00 4.25 0.50 2.38 22.25

ANSI B16.47 Series A Class 300 Flanges

Flange Manufacturer In India Offers Flanges From Pressure Ratings #150-2500

ANSI B16.47 Series A Class 300 Flanges
NPS   Thick   Drilling Weight
OD Blind Weld Neck OD RF Dia Bevel LTH Dia at Base Dia Holes Blind
O C C R A Y X    
26 38.25 3.31 3.12 29.50 26.00 7.25 28.38 1.75 1078
30 43.00 3.75 3.62 33.75 30.00 8.25 32.56 1.88 1543
32 45.25 3.94 3.88 36.00 32.00 8.75 34.69 2.00 1795
36 50.00 4.38 4.12 40.25 36.00 9.50 39.00 2.12 2436
38 46.00 4.25 4.25 40.50 38.00 7.12 39.12 1.62 2001
42 50.75 4.69 4.69 44.75 42.00 7.88 43.25 1.75 2688
44 53.25 4.88 4.88 47.00 44.00 8.12 45.25 1.88 3079
48 57.75 5.25 5.25 51.25 48.00 8.81 49.38 2.00 3896
50 60.25 5.50 5.50 53.50 50.00 9.12 51.38 2.12 4442
54 65.25 6.00 6.00 57.75 54.00 9.94 55.50 2.38 5684
56 67.25 6.06 6.06 59.75 56.00 10.25 57.62 2.38 6098
60 71.25 6.44 6.44 64.00 60.00 10.75 61.62 2.38 7274

Supplier Of Threaded Flanges in ASME B16.5 And B16.36 Standards

Standards Of Threaded Flange

  • ASME B16.36
  • ASME B16.48
  • BS 3293
  • Awwa C207
  • Australian flange
  • Japanese standard flange
  • ASME B16.5
  • ASME B16.47
  • EN 1092-1/2
  • MSS SP 44
  • ISO flange
  • Korean flange

Weight Chart Of Pipe Flanges

Flange Manufacturer In India Offers Accurate Weight Chart Of Flanges

NPS
(Inches)		 WEIGHT (KG)
WeldNeck
Socket Weld		 BLIND
3/4 0.7 0.6 0.6
1 1 0.8 0.9
1 1/2 1.7 1.3 1.5
2 2.6 2.1 2.4
3 4.9 3.9 4.9
3 1/2 6.1 4.8 6.2
5 8.6 6.1 8.6
6 10.6 7.5 11.3
10 24 16.5 28.6
14 48.4 34.6 58.1
16 60.6 44.8 76.1
20 84.5 61.9 122.0

Manufacturer of Weld Neck Flange and Plate Flanges in Raised face

Forged Steel Flange Face Types

  • Raised Face
  • Flat Face
  • Ring Type Joint
  • Lap Joint
  • Tounge Groove
  • Male Female

Dimension Chart Of Blind Flange

Dimension Chart Of Blind Flange
DN k D b d2 holes no KG
10 70 100 20 14 4 1.04
25 100 140 24 18 4 2.54
40 125 170 26 22 4 3.97
65 170 220 30 26 8 7.43
100 210 265 36 30 8 13.31
150 290 355 44 33 12 29.43
200 360 430 52 36 12 52.66
300 500 585 68 42 16 128.05
350 560 655 74 48 16 174.53
Burr Free Blind Flanges For High Pressure Applications

Applications Of Blind Flanges

  • Textile machinery
  • Water waste projects
  • Modern architecture
  • Pharmaceutical processing industry
  • Medical Gas Pipeline Systems
  • Oil and gas industry
  • Fluid piping
Manufacturer Of Heavy Weight Pipe Flanges for High Temperature Pipelines

How To Install And Maintain Pipe Weld Flanges?

How To Install And Maintain Pipe Weld Flanges?

Various Types Of Flanges

Socket Weld Flange

Socket Weld Flange

Threaded Flange

Threaded Flange

Exhaust Flange

Exhaust Flange

Plate Flange

Plate Flange

Flat Flange

Flat Flange

Lap Joint Flanges

Lap Joint Flanges

Orifice Flanges

Orifice Flanges

Ring Type Joint Flange

Ring Type Joint Flange

Spectacle Blind Flanges

Spectacle Blind Flanges

Blank Flange

Blank Flange

Closet Flange

Closet Flange

Companion Flange

Companion Flange

Puddle Flange

Puddle Flange

RTJ Flange

RTJ Flange

Raised Face Flange

Raised Face Flange

Flat Face Flange

Flat Face Flange

Loose Flange

Loose Flange

BLRF Flange

BLRF Flange

WNRF Flange

WNRF Flange

Dimension Chart Of Class 400 Weld Neck Flanges

ANSI B16.47 Series A Class 300 Flanges
NPS   Thick   Weight
ODia Weld Neck Dia at Base LTH Dia Bevel OD RF Weld Neck
O C X Y A R  
28 40.75 3.75 30.81 8.12 28.00 31.50 785
32 45.25 4.25 35.00 9.12 32.00 36.00 1065
36 50.00 4.50 39.38 9.88 36.00 40.25 1340
38 47.50 4.88 39.50 8.12 38.00 40.75 935
42 52.00 5.25 43.62 8.81 42.00 45.00 1190
44 54.50 5.50 45.62 9.18 44.00 47.25 1375
48 59.50 6.00 49.88 10.12 48.00 51.50 1790
50 61.75 6.19 52.00 10.56 50.00 53.62 1950
54 67.00 6.69 56.12 11.38 54.00 57.88 2565
56 69.00 6.88 58.25 11.75 56.00 60.12 2710
60 74.25 7.31 62.38 12.56 60.00 64.38 3820

Class 600 Blind Flanges Dimension Table

NPS   Thickness   Drilling Weight
Odia Blind LTH Odia
RF		 Dia
Holes		 Bolt
Circle		 Blind
O C Y R      
26 40.00 4.94 8.75 29.50 2.00 36.00 1759
30 44.50 5.50 9.75 33.75 2.12 40.25 2423
34 49.00 6.06 10.62 38.00 2.38 44.50 3237
38 50.00 6.12 10.00 41.50 2.38 45.75 3404
40 52.00 6.38 10.38 43.75 2.38 47.75 3838
44 57.25 7.00 11.38 48.25 2.62 52.50 5105
46 59.50 7.31 11.81 50.25 2.62 54.75 5758
50 65.75 8.00 12.94 54.50 3.12 60.00 7695
52 67.75 8.25 13.25 56.50 3.12 62.00 8426
56 73.00 8.88 14.25 60.75 3.38 66.75 10529
60 78.50 9.56 15.31 65.25 3.62 71.75 13108

Class 1500 Threaded Flange Dimensions

Supplier Of Flange Offers Wide Range Of Sizes For Customer Needs

ANSI B16.47 Series A Class 300 Flanges
DN D d1 k b P d3 r f d2 KG
10 100 17.2 70 20 4 40 2 2 14 1.08
20 130 26.9 90 22 7 52 2 2 18 2.00
25 140 33.7 100 24 7 60 3 2 18 2.54
40 170 48.3 125 26 7 80 3 3 22 3.87
50 195 60.3 145 28 7 95 3 3 26 5.42
80 230 88.9 180 32 7 130 3 3 26 8.21
100 265 114 210 36 7 158 3 3 30 12.1
150 355 165 290 44 7 225 3 3 33 25.1

Flat Face Flanges Dimensions Chart

Flange Manufacturer In India Provides Flanges With Multiple Faces Such As raised, Flat, Ring Type Joint Face

Flat Face Flanges Dimensions Chart
DN Pipe OD D d4 Kφ t f d2 No. of Holes KG
10 17.2 90 40 60 - 2 14 4 0.72
20 26.9 105 58 75 18 2 14 4 1.24
32 42.4 140 78 100 18 2 18 4 2.03
50 60.3 165 102 125 20 3 18 4 3.20
80 88.9 200 138 160 24 3 18 8 5.88
100 114.3 235 162 190 24 3 23 8 7.54
150 168.3 300 218 250 28 3 27 8 14.50
175 193.7 350 260 295 32 3 30 12 22.10
250 273 450 345 385 38 3 33 12 43.80
350 355.6 580 465 510 46 4 36 16 89.50
500 508 755 615 670 52 4 42 20 172.00

Long Weld Neck Flange Dimensions

DN D a j s b h m r k f KG
25 115 38 24 7 16 120 50 8 85 2 1,7
32 140 51 35 8 16 120 62 8 100 2 2,8
40 150 57 41 8 16 120 70 8 110 3 3,2
50 165 70 54 8 18 120 85 8 125 3 4,2
65 185 89 73 8 18 170 104 8 145 3 6,8
80 200 102 86 8 20 170 118 8 160 3 7,8
100 220 121 101 10 20 170 138 8 180 3 9,7
125 250 146 126 10 22 170 164 10 210 3 11,6
150 285 171 151 10 22 170 188 10 240 3 14
200 340 224 204 10 22 170 246 10 295 3 20,4

Tolerance Chart Of Slip On Flange

Flange Supplier In India Provides Excellent Tolerance Chart Of Flange

Tolerances ( mm)mm Thickness()
+8.0, -0.0 mm 50 < tf ≤ 75 mm
+5.0, -0.0 mm 25 < tf ≤ 50 mm
+3.0, -0.0 mm tf ≤ 25 mm
+10.0, -0.0 mm tf > 75 mm 0

What Are The Challenges Faced If Flange Size Is Big?

  • Improper alignment of connected components
  • leads to leakage
  • loss of system integrity
  • structural damage or failure

Schedule Chart Of Pipe Flange

NPS Sch 10 Sch 30 Sch 40 EXT Hvy Sch 100 Sch 140 XX Hvy
½ 0.083 - 0.109 0.147 - - 0.294
1 0.109 - 0.133 0.179 - - 0.358
1 ½ 0.109 - 0.145 0.2 - - 0.4
2 0.109 - 0.154 0.218 - - 0.436
3 0.12 - 0.216 0.3 - - 0.6
4 0.12 - 0.237 0.337 - - 0.674
6 0.134 - 0.28 0.432 - - 0.864
10 0.165 0.307 0.365 0.5 0.719 1 1
14 0.25 0.375 0.438 0.5 0.938 1.25 -
18 0.25 0.438 0.562 0.5 1.156 1.562 -
22 0.25 - - 0.5 - - -
30 0.312 0.625 - 0.5 - - -
40 - - - 0.5 - - -
48 - - - 0.5 - - -

Forged Steel Flange Pressure Ratings

Temp (F) 300# 150# 400# 900# 600# 2500# 1500#
-20 to 100 740 285 985 2220 1480 6170 3705
300 655 230 870 1965 1310 5450 3270
500 605 170 805 1810 1205 5025 3015
650 550 125 730 1650 1100 4575 2745
750 505 95 675 1520 1015 4230 2535
850 320 65 425 955 640 2655 1595
900 230 50 305 690 460 1915 1150
1000 85 20 115 255 170 715 430

Weld Neck Flanges HSN Code

Materials HS Code
Stainless Steel 73072100
Inconel Alloy 73079190
Alloy Steel 72052100
Carbon Steel 73079190
Titanium 810890
Copper Nickel 74112200

What Is Function Of Forged Steel Flanges?

  • Connect Pipes Securely
  • Help Distribute Pressure
  • Helps With Inspection and Maintenance
  • Handle Extreme Temperatures
  • Join Different Materials

Pipe Flanges Bolt Hole Diameter & Number

No of bolt Dia of bolt (in mm)
12 25.4
16 34.9
16 28.6
20 38.1
20 34.9
12 73

Reducing Flange Gasket Materials

  • Metallic Gaskets
  • Composite Gaskets
  • Non-metallic Gaskets
  • Sheet Flange Gaskets
  • Ring Flange Gaskets
  • Corrugated Flange Gaskets
  • PTFE (Polytetrafluoroethylene)
  • Spiral wound gaskets

Manufacturing Process Of Forged Steel Flanges

Dimension Chart Of Blind Flange

Finish Types Of Threaded Flanges

  • Stock Finish
  • Serrated Finish
  • Spiral Serrated
  • Concentric Serrated
  • Smooth Finish
  • Mirror Finish

How To Select Right Type Of Flange For Application ?

  • Operating Conditions
  • Pipe Size and Material
  • Installation and Maintenance
  • Sealing Requirements
  • Application Specifics

Supplied Flanges to Following Countries

Country Name Flag Country Name Flag
Dubai Dubai Morocco Morocco
Ethiopia Ethiopia Egypt Egypt
Ghana Ghana Zambia Zambia
Tanzania Tanzania UAE UAE
South Africa South Africa Tunisia Tunisia
Angola Angola Kenya Kenya
Nigeria Nigeria Algeria Algeria