+91-22-67521137

How do you verify the authenticity of the carbon steel flanges manufacturer?

  • Research on the manufacturer along with their company background, years of operation and reputation in the industry.
  • Check if the manufacturer holds relevant certifications and complies with industry standards.
  • Look for customer reviews and feedback about the products and services offered by the given carbon steel flanges manufacturer in India.
  • Visit the facility to assess its production capabilities and quality control processes.
  • Verify their business registration and other legal documents to ensure their legitimacy.

How do carbon steel pipe flanges compare to other flanges materials in terms of cost?

Carbon steel pipe flanges are more cost effective than flanges made from other materials like stainless steel or exotic alloys. CS pipe flanges is widely available and has a lower material cost which makes CS socket weld flanges a popular choice for different applications.


Low Temperature Carbon Steel Slip On and Blind Flange supplier in Mumbai


Carbon Steel Flanges

Check Normalized Carbon Steel Weld Neck Flanges and Reducing flange dimensions as per ANSI B16.47 Series A, ASME B16.5, EN 1092-2/ EN 1092-1


What are the 5 common complaints of buyers about carbon steel forged flanges?

  • Carbon steel forged flanges not meeting the required dimensions, pressure ratings or material specifications.
  • Surface defects, rough finishes or scratches on the flanges.
  • Issues with the quality of welds.
  • Fluctuations in the quality of the batches lead to inconsistency in the performance of the forged CS raised face flange.
  • CS Flanges corroding prematurely or not performing well in corrosive environments.

What is the role of pressure in the performance of a CS flange?

Pressure plays a crucial role in the performance of CS pipe flanges. It provides a secure and leak tight connection between two sections of piping or equipment. CS flanges manufacturer in India focus on the ability of the flange to withstand pressure. This will help maintain the integrity and safety of the system.


Carbon Steel Slip On Flange

Carbon Steel Slip On Flange

Carbon Steel Weld Neck Flange

Carbon Steel Weld Neck Flange

Carbon Steel Blind Flange

Carbon Steel Blind Flange

Carbon Steel Flanges



Carbon Steel Flange Specifications

Carbon Steel Flange Specifications

Types Of Coatings For CS Flange

There are several types of coatings to protect carbon steel pipe flange from rusting or corrosion:

  • Alloy material coated (Lined or Clad)
  • Anti-rust painting
  • Oil Varnished
  • Electric zinc coated (White or yellow zinc)

Carbon Steel Pipe Flange Types


CS Backing Flanges

CS Backing Flanges

  • Heat treatment :
  • Normalizing & quenching
  • Tempering & Stress relieving
  • Solution Annealing
CS Companion Flange

CS Companion Flange

  • Testing methods :
  • Magnetic particle test
  • Liquid penetrant test
  • Hardness test
Carbon Steel Stub End Flange

Carbon Steel Stub End Flange

  • Documentation :
  • Raw material test reports
  • Guarantee letter
  • Heat treatment chart
Carbon Steel Flange Flat Face

Carbon Steel Flange Flat Face

  • Value Added Services :
  • Chemical analysis
  • Mechanical testing
  • Flattening test
Carbon Steel Raised Face Flange

Carbon Steel Raised Face Flange

  • Sizes :
  • 1/2" to 24" Inch
  • 12.7 to 609.6 MM
  • DN15 To DN1200
CS Tongue and Groove Flange

CS Tongue and Groove Flange

  • Application :
  • Power generation
  • Pharmaceuticals
  • Petrochemicals
Carbon Steel Socket Weld Flange

Carbon Steel Socket Weld Flange

  • Available machineries :
  • CNC Lath
  • Hydraulic press
  • Cold forming machines
Carbon Steel Lap Joint Flanges

Carbon Steel Lap Joint Flanges

  • International Standard :
  • JIS/ AWWA
  • DIN/ API
  • EN/ BS
CS Threaded Flange

CS Threaded Flange

  • Surface Finish :
  • Mill Finishes
  • Bright annealed
  • Mechanically polished
Carbon Steel Plate Flange

Carbon Steel Plate Flange

  • Wall Thickness :
  • Schedule 10/ SCH 20
  • Schedule 40/ SCH 80
  • Schedule 120/ SCH 180
Carbon Steel Orifice Flange

Carbon Steel Orifice Flange

  • Testing methods :
  • Proof test
  • Tensile test
  • Impact test
CS RTJ Flange

CS RTJ Flange

  • JIS Standard :
  • 5K/ 10K/ 16K
  • 20K/ 30K
  • 40K/ 63K
CS Reducing Flange

CS Reducing Flange

  • Facing Finish :
  • Stock finish
  • Spiral serrated
  • Smooth finish
Carbon Steel Spectacle Blind Flanges

Carbon Steel Spectacle Blind Flanges

  • Suitable Gasket :
  • SOFT gaskets
  • Hard gaskets
  • Composite gaskets
Carbon Steel Forged Flanges

Carbon Steel Forged Flanges

  • Flange Bolts :
  • High strength bolts
  • Medium strength bolts
  • Low strength bolts
Carbon Steel Pipe Flanges

Carbon Steel Pipe Flanges

  • Temperature Consideration :
  • High Temperature = 200°C (400°F)
  • Low Temperature = -29 °C (−20°F)
Low Temperature Carbon Steel Flanges

Low Temperature Carbon Steel Flanges

  • Advantages :
  • Simple assembly
  • Attachment without welding
  • High pressures
Normalized Carbon Steel Flanges

Normalized Carbon Steel Flanges

  • DIN Standard :
  • PN6/ PN10
  • PN16/ PN25
  • PN40/ PN64
Killed Carbon Steel Flanges

Killed Carbon Steel Flanges

  • Flange Dimensions :
  • OD/ thickness/ pipe size
  • Bolt circle diameter
  • Nominal bore size
Flange CS

Flange CS

  • Coating :
  • Anti-rust paint
  • Zinc plated
  • Oil black paint
Carbon Flange

Carbon Flange

  • Equipment :
  • Pushing Machine
  • Press machine
  • Bending machine
Van Stone Flange Carbon Steel

Van Stone Flange Carbon Steel

  • Production Technique :
  • Forged
  • Heat treated
  • Machined
CS Pipe Flange

CS Pipe Flange

  • Test Certificates :
  • EN 10204/3.1B
  • Raw materials certificate
  • Third party inspection report

Carbon Steel Flanges Grades


Torque Values Of Carbon Steel Flange


Size MM (Maximum) Radial Projection
No Deeper Than the Bottom In Millimeter Deeper Than the Bottom In Millimeter
15 3.0 1.5
20 3.0 1.5
25 3.0 1.5
32 3.0 1.5
40 3.0 1.5
50 3.0 1.5
65 3.0 1.5
80 4.5 1.5
90 6.0 3.0
100 6.0 3.0
125 6.0 3.0
150 6.0 3.0
200 8.0 4.5
250 8.0 4.5
300 8.0 4.5
350 8.0 4.5
400 10.0 4.5
450 12.0 6.0

Carbon Steel Flanges Price List


Type Of FlangeSize In Inch SCHClass GradePrice In INR (India) Per Piece
Blind Flange3/440150ASTM A105 Flange120.00
-140150-143.00
-1-1/240150-234.00
-240150-387.00
Blind440150-534.00
Weld Neck Flange2STD150-310.00
-4STD300-650.00
-680300-987.00
-880300-1342.00
Weld Neck1080300-1983.00
Slip On Flange240150-187.00
-340150-347.00
-480300-543.00
-680300-950.00
Slip On880300ASTM A105 Flange1387.00

  • You will find the low cost in comparison to other Carbon Steel Flanges manufacturers
  • Ready stock of CS Flanges available for USA, Europe, UAE, China and Malaysia in standard sizes and pressure class, give a call for custom sizes, get a free sample now!

Gasket For Carbon Steel Flange


(Normal Size Of Pipes) In Inch (O.D.) Outer Daimeter Gasket
Class 150 Class 300
1/2 1.875 2.125
3/4 2.25 2.625
1 2.625 2.875
1 1/4 3 3.25
1 1/2 3.375 3.75
2 4.125 4.375
2 1/2 4.875 5.125
3 5.375 5.875
4 6.875 7.125
5 7.75 8.50
6 8.75 9.875
8 11 12.125
10 13.375 14.25
12 16.125 16.625

Manufacturer of Killed Carbon Steel Forged Flanges and Low CS Plate, Backing, Companion, Threaded, Stub End Flange in Mumbai, view pressure rating and Carbon Steel Blind Flange price in India


Low Temperature Carbon Steel Flange Rating

maximum pressure for Low Temperature Carbon Steel Flange In (PSI)

ASME B16.34 ANSI Pressure Rating
Temp in (°F) Class 150 Class 300 Class 600 Class 1500 Class 2500
-20 to 100 290 750 1500 3750 6250
200 260 750 1500 3750 6250
300 230 730 1455 3640 6070
400 200 705 1410 3530 5880
500 170 665 1330 3325 5540
600 140 605 1210 3025 5040
650 125 590 1175 2940 4905
700 110 570 1135 2840 4730
750 95 505 1010 2520 4200
800 80 410 825 2060 3430
850 65 270 535 1340 2230
900 50 170 345 860 1430
950 35 105 205 515 860
1000 20 50 105 260 430

Carbon Steel Forged Flanges Sizes


Normal Pipe Size

DN

1/2

15

3/4

20

1

25

1 1/4

32

 1 1/2

40

2

50

2 1/2

65

3

80

4

100


Carbon Steel Blind Flange Dimensions


Carbon Steel Blind Flange Dimensions

NPS in Inch WT Of (B)
RF Diameter Of
(C)
(D)
(Bolts Circle Diameter)
# Pipe Flange Bolts
Holes (B.H.)
Bolt Holes Diameter
Weight In Kilogram
1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4 1/2 1-11/16 2-3/4 4 5/8 2
1 9/16 2 3-1/8 4 5/8 2
1-1/2 11/16 2-7/8 3-7/8 4 5/8 3
2 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2 7/8 4-1/8 5-1/2 4 3/4 7
3 15/16 5 6 4 3/4 9
3-1/2 15/16 5-1/2 7 8 3/4 13
4 15/16 6-3/16 7-1/2 8 3/4 17
5 15/16 7-5/16 8-1/2 8 7/8 20
6 1 8-1/2 9-1/2 8 7/8 27
8 1-1/8 10-5/8 11-3/4 8 7/8 47
10 1-3/16 12-3/4 14-1/4 12 1 67
12 1-1/4 15 17 12 1 123
14 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18 1-9/16 21 22-3/4 16 1-1/4 217
20 1-11/16 23 25 20 1-1/4 283
24 1-7/8 27-1/4 29-1/2 20 1-3/8 415

Weight Of Carbon Steel Flanges


NPS Slip On (SORF) Socket Weld (SWRF) Blind (BLRF) Weld Neck (WNRF)
½ 1 2 2 2
¾ 2 2 2 2
1 2 2 2 3
3 3 3 3
1½  3 3 4 4
2 5 5 5 6
2½  8 8 7 10
3 9 9 9 11.5
3½  11 11 13 12
4 13 13 17 16.5
5 15 15 20 21
6 19 19 27 26
8 30 30 47 42
10 43 43 70 54
12 64 64 123 88
14 90 90 140 114
16 106 98 180 140
18 130 130 220 165
20 165 165 285 197
22 185 185 355 225
24 220 220 430 268

Carbon Steel Slip On Flanges Dimensions


Carbon Steel Slip On Flanges Dimensions

NPS (Inner Daimeter) (Outer Diameter) (Bolts Circle) Raised Face (RF) Hight For (H) Raised Face WT Thick1 B.C. For
(Bolts Holes)
B.H. Number
(Bolt Hole)
1/2 0.88 3.50 2.38 .063 1.19 .62 .38 .62 4
3/4 1.09 3.88 2.75 .063 1.50 .62 .44 .62 4
1 1.36 4.25 3.12 .063 1.94 .69 .50 .62 4
1-1/4 1.70 4.62 3.50 .063 2.31 .81 .56 .62 4
2 2.44 6.00 4.75 .063 3.06 1.00 .69 .75 4
2-1/2 2.94 7.00 5.50 .063 3.56 1.12 .82 .75 4
3 3.57 7.50 6.00 .063 4.25 1.19 .88 .75 4
4 4.57 9.00 7.50 .063 5.31 1.31 .88 .75 8
5 5.66 10.00 8.50 .063 6.44 1.44 .88 .88 8
6 6.72 11.00 9.50 .063 7.56 1.56 .94 .88 8
8 8.72 13.50 11.75 .063 9.69 1.75 1.06 .88 8
10 10.88 16.00 14.25 .063 12.00 1.94 1.13 1.00 12
12 12.88 19.00 17.00 .063 14.38 2.19 1.19 1.00 12
16 16.16 23.50 21.25 .063 18.00 2.50 1.38 1.12 16
18 18.18 25.00 22.75 .063 19.88 2.69 1.50 1.25 16
20 20.20 27.50 25.00 .063 22.00 2.88 1.63 1.25 20
22 22.22 29.50 27.25 .063 24.25 3.13 1.75 1.38 20
24 24.25 32.00 29.50 .063 26.12 3.25 1.82 1.38 20

Looking for CL150 Raised/ Flat Face Ulma Carbon Steel Flanges manufacturers in India? A complete range of Class 300/ 600 RF CS Lap Joint, Tongue and Groove Flange in India, buy RTJ/ RF CS Socket Weld Flange, Spades/ Ring Spacers, Spectacle Blinds and Carbon Steel Orifice Flange in Mumbai at factory price

Carbon Steel Flange Thickness


NPS Outer Diameter (O.D.) 10 Schedule STD Wall 40 Schedule EXT Hvy 80 Schedule 160 Schedule
½ 0.84 0.083 0.109 0.109 0.147 0.147 0.188
¾ 1.05 0.083 0.113 0.113 0.154 0.154 0.219
1 1.315 0.109 0.133 0.133 0.179 0.179 0.25
1 ¼ 1.66 0.109 0.14 0.14 0.191 0.191 0.25
1 ½ 1.9 0.109 0.145 0.145 0.2 0.2 0.281
2 2.375 0.109 0.154 0.154 0.218 0.218 0.344
2 ½ 2.875 0.12 0.203 0.203 0.276 0.276 0.375
3 3.5 0.12 0.216 0.216 0.3 0.3 0.438
3 ½ 4 0.12 0.226 0.226 0.318 0.318 -
4 4.5 0.12 0.237 0.237 0.337 0.337 0.531
5 5.563 0.134 0.258 0.258 0.375 0.375 0.625
6 6.625 0.134 0.28 0.28 0.432 0.432 0.719
8 8.625 0.148 0.322 0.322 0.5 0.5 0.906

Manufacturing Sch 80Carbon Steel Pipe Flanges for petrochemical industry in USA, Europe, UAE, and Malaysia, 100% PMI EN 10204 3.1 Normalized and Killed CS Flanges with MTC/ MTR reports

EN 1092-1 Carbon Steel PN16 Flange Dimensions


EN 1092-1 Carbon Steel PN16 Flange Dimensions
Rated
Diameter
Pipe Flanges Screws
(d1) (k) (D) (b) (d2) (Bolt holes (B.H.))
10 18,0 60 90 14 14 4
15 22,0 65 95 14 14 4
20 27,5 75 105 16 14 4
25 34,5 85 115 16 14 4
32 43,5 100 140 18 18 4
40 49,5 110 150 18 18 4
50 61,5 125 165 20 18 4
65 77,5 145 185 20 18 4
80 90,5 160 200 20 18 8
100 116,0 180 220 22 18 8
125 141,5 210 250 22 18 8
150 170,5 240 285 24 22 8
200 221,5 295 340 26 22 12
250 276,5 355 405 29 26 12
300 327,5 410 460 32 26 12
350 359,0 470 520 35 26 16
400 411,0 525 580 38 30 16
450 462,0 585 640 42 30 20
500 513,5 650 715 46 33 20
600 616,5 770 840 55 36 20
700 714,2 840 910 63 36 24
800 815,8 950 1025 74 39 24
900 917,4 1050 1125 82 39 28
1000 1019,0 1170 1255 90 42 28

Carbon Steel Flanges Pressure And Temperature Ratings

maximum pressure In (bars)

ANSI B16.5 Pressure Rating as per ASME B16.5
Temp in C° Class 150# Class 300# Class 600# Class 1500# Class 2500#
-29 / 38 19.6 51.1 102.1 255.3 425.5
50 19.2 50.1 100.2 250.6 417.7
100 17.7 46.6 93.2 233 388.3
150 15.8 45.1 90.2 225.4 375.6
200 13.8 43.8 87.6 219 365
250 12.1 41.9 83.9 209.7 349.5
300 10.2 39.8 79.6 199.1 331.8
325 9.3 38.7 77.4 193.6 322.6
350 8.4 37.6 75.1 187.8 313
375 7.4 36.4 72.7 181.8 303.1
400 6.5 34.7 69.4 173.6 289.3
425 5.5 28.8 57.5 143.8 239.7
450 4.6 23 46 115 191.7
475 3.7 17.4 34.9 87.2 145.3
500 2.8 11.8 23.5 58.8 97.9

Carbon Steel Van Stone Flange Dimensions


Carbon Steel Van Stone Flange Dimensions

Forged Carbon Steel Flanges Bolt Chart

Size in mm Number of Bolts Raised Face Stud Length ISO Stud Size
15 4 55 M14
20 4 65 M14
25 4 65 M14
32 4 70 M14
40 4 70 M14
50 4 85 M16
65 4 90 M16
80 4 90 M16
90 8 90 M16
100 8 90 M16
125 8 95 M20
150 8 100 M20
200 8 110 M20
250 12 115 M24
300 12 120 M24
350 12 135 M27
400 16 135 M27
450 16 145 M30
500 20 160 M30
600 20 170 M33

Carbon Steel Pipe Flanges Marking


Carbon Steel Pipe Flanges Marking
  • size
  • item
  • specification and number
  • pressure rating, with unit
  • OD
  • WT, with unit
  • bore when applicable
  • std schedule when applicable,
  • material specification
  • 4"
  • FLANGE
  • WNRF
  • ASME B16.5 #30
  • 6" OD x 0.250"
  • 152.4 Unit
  • Bore 15.500"
  • SCH10S
  • ASTM A350 LF2

Carbon Steel Weld Neck Flange Dimensions


Carbon Steel Weld Neck Flange Dimensions

NPS in Inches (O.D.) Outer Diameter Weld Neck Thickness Hub O.D. Weld Neck OD Welding Neck Length RF Diameter RF Height
(A) (B) (C) (D) (E) (G) (H)
1/2 90 9.6 30 21.3 46 34.9 2
3/4 100 11.2 38 26.7 51 42.9 2
1 110 12.7 49 33.4 54 50.8 2
1 1/4 115 14.3 59 42.2 56 63.5 2
1 1/2 125 15.9 65 48.3 60 73 2
2 150 17.5 78 60.3 62 92.1 2
2 1/2 180 20.7 90 73 68 104.8 2
3 190 22.3 108 88.9 68 127 2
3 1/2 215 22.3 122 101.6 70 139.7 2
4 230 22.3 135 114.3 75 157.2 2
5 255 22.3 164 141.3 87 185.7 2
6 280 23.9 192 168.3 87 215.9 2
8 345 27 246 219.1 100 269.9 2
10 405 28.6 305 273 100 323.8 2
12 485 30.2 365 323.8 113 381 2
14 535 33.4 400 355.6 125 412.8 2
16 595 35 457 406.4 125 469.9 2
18 635 38.1 505 457.2 138 533.4 2
20 700 41.3 559 508 143 584.2 2
24 815 46.1 663 610 151 692.2 2

Killed Carbon Steel Flanges Face Types


Killed Carbon Steel Flanges Face Types

  • Type A: Flat Face (FF)
  • Type B: Raised Face (RF)
  • Type C: Tongue Face (TF)
  • Type D: Grooved Face (GF)
  • 1Type E: Spigo
  • Type F: Recess
  • Type G: Ring Recess
  • Type H: O-Ring Groove

CS SORF Flange Standard


CS SORF Flange Standard
  • BS 4504
  • ASME B16.5
  • EN 1092-1
  • AWWA C207
  • JIS
  • ISO
  • ANSI B16.5
  • MSS SP-44
  • EN 1092-2 PN16
  • DIN

Carbon Flange Chemical Composition


Carbon Steel Flanges Chemical Composition
Elements Composition, %
Cr [Chromium] ≤0.30
Mn [Manganese] 0.60-1.05
P [Phosphorus] ≤0.35
Carbon [C] ≤0.35
V [Vanadium] ≤0.08
Si [Silicon] 0.10-0.35
Cu [Copper} ≤0.40
Ni [Nickel] ≤0.40
S [Sulfur] ≤0.40
Mo [Molybdenum] ≤0.12

Low Temp Flanges Mechanical Properties


Property ASTM A105 Flanges ASTM A350 LF2 Flanges
Tensile Strength (Minimum), psi 70,000 70,000-95,000
Elongation (%) 22 22
Reduction of Area (%) 30 30
Hardness, maximum 187 15/12 ft-lbs
Tensile Strength (Minimum), N/mm² 485 485-655
Yield Strength (Minimum), psi 36,000 36,000
Yield Strength (Minimum), N/mm² 250 250
CVN at -50℉ 20/16 joules

Can custom thicknesses be ordered for carbon steel slip on flange?

You can order carbon steel slip on flange in custom thickness from reputed manufacturers like Vishal Steel. They offer full customization of the slip on killed CS flanges which will meet your specific application requirements.


How does the ASME B16.5 standard affect the design of carbon steel weld neck flange?

  • ASME B16.5 specifies the dimensions and tolerances for carbon steel weld neck flanges.
  • The standard provides pressure-temperature ratings.
  • ASME B16.5 lists the acceptable materials that ensure the compatibility of normalized CS flanges with the intended application.
  • The standard outlines the facing and finish requirements for flange surfaces.

What are the testing requirements for carbon steel blind flange?

  • Verify the CS forged flange dimensions and ensure it adheres to the specified standards.
  • Examine the carbon steel blind flange surface for any visible defects.
  • Obtain material test reports to validate the CS flanges grade and composition.
  • Perform pressure testing to ensure the ability of the carbon steel flat face flange to withstand the intended pressure rating.
  • Depending on requirements, non destructive testing methods may be performed to detect internal defects or surface irregularities.

What are the most common manufacturing methods for carbon flanges?

  • Forged carbon flanges are produced by heating the material and shaping it using pressure to form the desired shape.
  • Machined carbon steel companion flanges are made by removing material from a larger piece to achieve the final shape.
  • Welded flanges are fabricated by joining multiple pieces of low carbon flanges by various welding processes.
  • Cast carbon steel stub end flanges are made by pouring molten metal into a mold to solidify into the desired shape.

Carbon Steel Flange Forging Factory In India


Carbon Steel Flange Forging Factory In India
Carbon Steel Flange Forging Factory In India
Carbon Steel Flange Forging Factory In India
Carbon Steel Flange Forging Factory In India
Carbon Steel Flange Forging Factory In India
Carbon Steel Flange Forging Factory In India

Carbon Steel Forged Flanges Application

  • Specialty Chemicals
  • Power Generation
  • Condensers
  • Chemical Equipment
  • Gas Processing
  • Pulp and Paper Industry
  • Sea Water Equipment
  • Pharmaceutical Equipment
  • Off-Shore Oil Drilling Companies
  • Petrochemicals
  • Heat Exchangers
  • Pharmaceuticals

Vishal Steel Have Expert Engineer

SS Flange Expert Engineer
SS Flange Expert Engineer
SS Flange Expert Engineer
SS Flange Expert Engineer
SS Flange Expert Engineer
SS Flange Expert Engineer