+91-22-67521137
Contact Person

Gautam Mehta

+91-22-23898841

Factory Address:

Plot No. 749/77/5, G.I.D.C. Estate, Makarpura, Vadodara -390010.

Stainless Steel Flanges manufacturer in India

Refer ASTM A182 Flanges and PN16 Stainless Steel Forged Flanges dimensions and weight chart




Table Of Content:



Stainless Steel Flange Specification


Specification Stainless Steel Flanges
Face Type RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove.
Forging Methods Casting/ Forging/ Rolling/ Cutting
Schedule SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Dimensions And Standard EN 1092-1/ EN 1092-2/ API/ ISO/ JIS/ GOST/ PN
Manufacturer Length NPS 1⁄₂" To NPS 48”
EN Standard 6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
DIN Standard PN6/ PN10/ PN16/ PN25/ PN40/ PN64
JIS Standard 5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Other Standard B16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard 6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Supporting Material Gasket/ Ring Joint/ Flange Bolts
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production Technique Forged/ Heat treated and machined
Manufacturer of Forged/ Threaded/ Screwed / Plate
Most common types of SS Flange Weld Neck Ring Flanges (WNRF)
Blind Ring Flanges (BLRF)
Threaded Ring Flanges
Lap Joint Ring Flanges (LJRF)
Slip-On Ring Flanges (SORF)
Socket Weld Ring Flanges (SWRF)
Ring Type Joint Flanges (RTJF)
Manufacturer Pressure Class Class 150 (lb) up to 24"
Class 300 (lb) up to 20"
Class 600 (lb) up to 20"
Class 900 (lb) up to 16"
Class 1500 (lb) up to 10"
Class 2500 (lb) up to 8"
Flange Test Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flange Equipment Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
Application Bitumen upgraders
Heavy oil refineries.
Nuclear power (mostly seamless).
Petrochemicals and acids.
  • Price stability can be seen in Stainless Steel Flanges Manufacturer In India
  • ASTM A182 Flanges Material have high corrosion resistance, particularly to stress corrosion cracking
  • Very little or no maintenance material
  • PN16 Stainless Steel Forged Flanges are suitable for harsh conditions.
  • Buy from SS Flange manufacturers in India for factory price
  • A largest Manufacturer, Source, Stock, Stockholder, Traders, Wholesaler, Distributor, Suppliers, Dealer, Distributor, Importer, Exporter, Fabricator & Stockist in Asia & Middle East.

Flange Forging Companies In India









Stainless Steel Flanges Grade


Stainless Steel 304 Flanges

Stainless Steel 304L Flanges

Stainless Steel 304H Flanges

Stainless Steel 310 Flanges

Stainless Steel 316 Flanges

Stainless Steel 316L Flanges

Stainless Steel 321 Flanges

Stainless Steel 347 Flanges

Stainless Steel 410 Flanges

Type Of SS Flange


Stainless Steel Slip On Flange

Stainless Steel Weld Neck Flange

Stainless Steel Blind Flange

Stainless Steel Plate Flange

Stainless Steel Orifice Flange

RTJ Flange

Stainless Steel Reducing Flange

Spectacle Blind Flanges

ASTM A182 Flange Pressure Rating



Stainless Steel Forged Flanges Weight Chart


Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 150 Flanges ½  1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
1½  3 3 3 3 4 4
2    5 5 5 5 5 6
2½  8 8 8 8 7 10
3    9 9 9 9 9 11.5
3½  11 12 11 11 13 12
4    13 13 13 13 17 16.5
5    15 15 15 15 20 21
6    19 19 19 19 27 26
8    30 30 30 30 47 42
10    43 43 43 43 70 54
12    64 64 64 64 123 88
14    90 90 90 105 140 114
16    106 98 98 140 180 140
18    130 130 130 160 220 165
20    165 165 165 195 285 197
22    185 185 185 245 355 225
24    220 220 220 275 430 268
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 300 Flanges ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1    3 3 3 3 4 4
1¼ 4.5 4.5 4 4.5 6 5
1½  6.5 6.5 6 6.5 7 7
2    7 7 7 7 8 9
2½  10 10 10 10 12 12
3    13 14 13 14.5 16 18
3½  17 17 17 17 21 20
4    23.5 24 22 24 28 26.5
5    29 31 28 28 37 36
6    39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 400 Flanges ½  2 2 2 2 2 3
¾ 3 3 3 3 3 3.5
1 3.5 3.5 3.5 3.5 4 4
1¼ 4.5 4.5 4.5 4.5 6 4.5
1½  6.5 6.5 6.5 6.5 8 8
2    8 8 8 8 10 10
2½  12 12 12 11 15 14
3    15 15 15 14 20 18
3½  21 21 21 20 29 26
4    26 26 26 25 33 35
5    31 31 31 29 44 43
6    44 44 44 42 61 57
8    67 67 67 64 100 89
10    91 91 91 110 155 125
12    130 130 130 152 226 175
14    191 191 191 210 310 233
16    253 253 253 280 398 295
18  &nbspnbsp; 310 310 310 345 502 360
20    378 378 378 420 621 445
22    405 405 405 455 720 505
24    539 539 539 615 936 640
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 600 Flanges ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1    4 4 4 4 4 4
1¼ 5 5 5 5 6 6
1½  7 7 7 7 8 8
2    9 9 9 9 10 12
2½  13 13 13 12 15 18
3    16 16 16 15 20 23
3½  21 21 21 20 29 26
4    37 37 37 36 41 42
5    63 63 63 63 68 68
6    80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 900 Flanges ½  6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 7.5 7.5 7.5 7.5 9 8.5
1¼ 10 10 10 10 10 10
1½  14 14 14 14 14 14
2    22 22 22 21 25 24
2½  31 31 31 25 32 31
3    36 36 36 29 35 36
4    53 53 53 51 54 53
5    83 83 83 81 87 86
6    110 110 110 105 115 110
8    172 172 172 190 200 187
10    245 245 245 277 290 268
12    326 326 326 371 415 372
14    400 400 400 415 520 562
16    459 459 459 488 619 685
18    647 647 647 670 880 924
20    792 792 792 868 1107 1164
24    1480 1480 1480 1659 2099 2107
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 1500 Flanges ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1    8 8 8 8 9 9
1¼ 10 10 10 10 10 10
1½  14 14 14 14 14 14
2    25 25 25 25 25 25
2½  36 36 36 35 35 36
3    48 48 48 47 48 48
4    73 73 73 75 73 73
5    132 132 132 140 140 132
6    165 165 165 170 160 165
8    260 260 260 286 302 275
10 436 436 436 485 510 455
12 667 667 667 749 775 690
14 940 940 940 890 975 940
16 1250 1250 1250 1250 1300 1250
18 1625 1625 1625 1475 1750 1625
20 2050 2050 2050 1775 2225 2050
24 2825 2825 2825 2825 3625 3325
Pressure Class Nominal Size Of Pipe  (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 2500 Flanges ½  …. 7 …. 7 7 8
¾ …. 9 …. 8 10 9
1 …. 12 …. 12 12 13
1¼ …. 18 …. 17 18 20
1½  …. 25 …. 24 25 28
2    …. 38 …. 37 39 42
2½  …. 55 …. 53 56 52
3    …. 83 …. 80 86 94
4    …. 127 …. 122 133 146
5    …. 210 …. 204 223 244
6    …. 323 …. 314 345 378
8    …. 485 …. 471 533 576
10    …. 925 …. 897 1025 1068
12    …. 1300 …. 1262 1464 1608

Vishal Steel Have Expert Engineer








PN16 Stainless Steel Flanges Dimensions


Flanges Size inches Flanges Size millimeter Outer Diameter (O.D.) inches Outer Diameter (O.D.) millimeter Inner Diameter (I.D.) inches Inner Diameter (I.D.) millimeter Ø B.H.C. In inches Ø B.H.C. In millimeter Ø B.H. inches Ø B.H. millimeter # B.H. Thickness inches Thickness millimeter Weight lbs Weight Kilogram
8.0 200 13.39 340 8.72 221.50 11.61 295 0.870 22 12 1.020 26 21.0 9.5
10.0 250 15.94 405 10.88 276.40 13.97 355 1.020 26 12 1.140 29 31.0 14.1
12.0 300 18.11 460 12.88 327.20 16.14 410 1.020 26 12 1.260 32 42.7 19.4
14.0 350 20.47 520 14.19 360.40 18.50 470 1.020 26 16 1.380 35 62.3 28.3
15.0 400 22.83 580 16.19 411.20 20.67 525 1.180 30 16 1.500 38 80.5 36.5
17.0 450 25.20 640 18.19 462.00 23.03 585 1.180 30 20 1.650 42 110.3 50.1
19.0 500 28.15 715 20.19 512.80 25.59 650 1.300 33 20 1.810 46 141.5 64.2
24.0 600 33.07 840 24.19 614.40 30.32 770 1.420 36 20 2.050 52 213.5 96.9

2 Inch Stainless Steel Flange Application






  • Steel Tube Flange For Specialty Chemicals
  • DN80 Steels Flange For Power Generation
  • Stainless Steel Puddle Flange For Condensers
  • ASTM SA182 Flange For Chemical Equipment
  • SS Pipe Flanges For Gas Processing
  • PN16 Stainless Steels Flanges For Pulp and Paper Industry
  • ASTM A182 Flanges For Sea Water Equipment
  • SS Pipe Flange For Pharmaceutical Equipment
  • 4 Inch Steel Flange For Off-Shore Oil Drilling Companies
  • 2 Inch Steel Flange For Petrochemicals
  • Stainless Steels Pipe Flange For Heat Exchangers
  • Stainless Steels Forged Flanges For Pharmaceuticals

Global Client Reference list & delivery schedule of Stainless Steel Flanges


Location Days Clients
India 7
  • Indian oil corporation, India
  • L&T India
  • Essar India
  • BHEL India
  • NTPC India
  • WIPRO India
Malaysia 15
  • Saag Oil & Gas Sdn Bhd (Malaysia), Block C1, Petaling Jaya, Malaysia, 19-5, 47301 Petaling Jaya, Selangor, Malaysia
  • Malaysian Oil & Gas Services Council, Malaysia, Persiaran Petronas, Kuala Lumpur City Centre, 50088 Kuala Lumpur, Malaysia
  • Synergy Oil & Gas Engineering Sdn Bhd, Malaysia, B-07-02, Skypark @, Jalan USJ 25/1, One City, 47600 Subang Jaya, Selangor, Malaysia
  • Hablem Oil & Gas (M) Sdn Bhd, Malaysia, Lot K-7162 (Ground Floor), Bandar Seri Kerteh, 24300 Kerteh, Terengganu, Malaysia
United Arab Emirates (UAE) 15
  • Hexa Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE)
  • Al Masaood Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE)
Dubai 15
  • SPEC Oil & Gas FZCO- Dubai, Sheikh Mohammad Bin Zayed Rd - Dubai - United Arab Emirates (UAE)
  • Dragon Oil LLC -Dubai, Umm Al Hurair 2, Building 16, Executive Office Building- Dubai, UAE
  • Lazer Clean Middle East L.L.C, Dubai - United Arab Emirates (UAE)
  • Esterpol DIP, Dubai Investments Park 2 - Dubai - United Arab Emirates (UAE)
Indonesia 20
  • Pacific Oil & Gas Indonesia. PT- Indonesia, RT.14/RW.20, Kebon Melati, Central Jakarta City, Jakarta 10230, Indonesia
  • GE Oil & Gas- Indonesia, Batu Ampar, Batam City, Riau Islands 29444, Indonesia
  • Medco E&P Indonesia TUGU- Indonesia, Jawa Barat 16750, Indonesia
  • Mubadala Petroleum - Indonesia, DKI Jakarta, Daerah Khusus Ibukota Jakarta 12310, Indonesia
Singapore 15
  • Pacific Oil & Gas -Singapore, 1 Raffles Pl, Singapore 048624
  • Repsol Oil & Gas SEA Pte. Ltd. -Singapore, tower 2 Marina Bay Financial Centre, Singapore 018983
  • BP Singapore Pte Ltd -Singapore, 7 Straits View, #26-01 Marina One East Tower, Singapore 018936
  • Cosmo Oil International Pte Ltd -Singapore, 6 Battery Rd, Singapore 049909
UK 40
  • Solutia UK Ltd, Corporation Rd, Newport NP19 4XF, United Kingdom (UK)
  • Stepan UK Ltd, Bridge House, Bridge Street, Stalybridge SK15 1PH, United Kingdom (UK)
  • Univar UK Ltd, Block K/Leslie Caerphilly CF83 1BQ, United Kingdom (UK)
Australia 40
  • Scott Chemicals Australia Pty Ltd, 21/296 Bay Rd, Cheltenham VIC 3192, Australia
  • Wildcat Chemicals Australia, 15 Magnesium St, Narangba QLD 4504, Australia
  • Knight Equipment Australia PTY Ltd., Unit 3/1B Kleins Rd, Northmead NSW 2152, Australia
Italy 30
  • Ecolab Production Italy, Via A. Grandi, 9, 20089 Rozzano MI, Italy
  • Sabic Italia Spa, Via S. Clemente, 1, 20122 Milano MI, Italy
  • TEVA Pharmaceutical Industries (Italy), Via Terrazzano, 77, 20017 Rho MI, Italy
Germany 32
  • Evonik Industries AG, Rößlerstraße 1, 64293 Darmstadt, Germany
  • DEA German Petroleum AG, Überseering 40, 22297 Hamburg, Germany
  • Oiltanking GmbH Germany, Saarstraße 14, 63450 Hanau, Germany
Kuwait 12
  • Kuwait National Petroleum Company, Hamad Al Zuwayer St, Ahmadi, Kuwait
  • Kuwait Oil Tanker Company, Kuwait
  • Kuwait Drilling Company, Kuwait City, Kuwait
Oman 12
  • Oman Oil Service Station, Seeb, Oman
  • CC Energy Development S.A.L Oman, 3026 As Saruj St, Muscat, Oman
Qatar 15
  • SPIE Oil & Gas Services Doha LLC (Qatar), Cat Building, Al Saad - 4th Floor، Doha, Qatar
  • Qatar Petroleum Oil Refinery, Mesaieed, Qatar

Gaskets For Stainless Steel Flanges


(Normal Size Of Pipes) In Inch (I.D.) Inner Daimeter Gasket
 (O.D.) Outer Daimeter Gasket
Class 150#/ LB Class 300#/ LB Class 400#/ LB Class 600#/ LB Class 900#/ LB
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

Class 600 Stainless Steel Flanges Dimensions



Normal Pipe Size Flange
Diameter
('O')		 Diameter of
(B.C.)
'A'		 Diameter of (B.H.)
'D'		 Holes
Number		 Flanges Wall Thickness
'C'		 Diameter (Flanges) at Weld Bevel (Flanges) Diameter of Hub
'E'		 Length Of Through Hub Bore ('B') Diameter of
(RF)
R		 Depth of
Socket Weld
F		 Threading
Length
SORF/ SWRF
(Y)		 WNRF
(Y)		 Lap Joit
(Y)		 SORF/ SWRF
(B) 		Lap Joit
(B)
1/2'' 15 95.2 66.7 15.9 4 14.3 21.3 38.1 22.2 52.4 22.2 22.3 22.9 34.9 9.5 15.9
3/4'' 20 117.5 82.5 19.0 4 15.9 26.7 47.6 25.4 57.1 25.4 27.7 28.2 42.9 11.1 15.9
1'' 25 123.8 88.9 19.0 4 17.5 33.5 54.0 27.0 61.9 27.0 34.5 35.0 50.8 12.7 17.5
1 32 133.3 98.4 19.0 4 20.6 42.2 63.5 28.6 66.7 28.6 43.2 43.7 63.5 14.3 20.6
1 40 155.6 114.3 22.2 4 22.2 48.3 69.8 31.7 69.8 31.7 49.5 50.0 73.0 15.9 22.2
2'' 50 165.1 127.0 19.0 8 25.4 60.4 84.1 36.5 73.0 36.5 62.0 62.5 92.1 17.5 25.4
2 65 190.5 149.2 22.2 8 28.6 73.1 100.0 41.3 79.4 41.3 74.7 75.4 104.8 19.0 28.6
3'' 80 209.5 168.3 22.2 8 31.8 88.9 117.5 46.0 82.5 46.0 90.7 91.4 127.0 - 30.2
3 90 228.5 184.2 22.2 8 34.9 101.6 133.4 49.3 85.7 49.3 103.4 104.1 140.0 - 31.7
4'' 100 273.0 215.9 25.4 8 38.1 114.3 152.4 54.0 101.6 54.0 116.1 116.8 157.2 - 33.3
5'' 125 330.2 266.7 28.6 8 44.4 141.2 188.9 60.3 114.3 60.3 143.8 144.5 185.7 - 36.5
6'' 150 355.6 292.1 28.6 12 47.6 168.4 222.2 66.7 117.5 66.7 170.7 171.4 215.9 - 39.7
8'' 200 419.1 349.2 31.7 12 55.6 219.2 273.0 76.2 133.3 76.2 221.5 222.2 269.9 - 44.4
10'' 250 508.0 431.8 34.9 16 63.5 273.0 342.9 85.7 152.4 111.2 276.3 277.4 323.8 - 49.2
12'' 300 558.8 488.9 34.9 20 66.7 323.8 400.0 92.1 155.6 117.3 327.1 328.2 381.0 - 55.6
14'' 350 603.2 527.0 38.1 20 69.9 355.6 431.8 93.7 165.1 127.0 359.1 360.2 412.7 - 57.1
16'' 400 685.8 603.2 41.3 20 76.2 406.4 495.3 106.4 177.8 139.7 410.5 411.2 469.9 - 63.5
18'' 450 742.9 654.0 44.4 24 82.6 457.2 546.1 117.5 184.1 152.4 461.8 462.3 533.4 - 68.3
20'' 500 812.8 723.9 44.4 24 88.9 508.0 609.6 127.0 190.5 165.1 513.1 514.3 584.2 - 73.0
24'' 600 939.8 838.2 50.8 24 101.6 609.6 717.5 139.7 203.2 184.1 615.9 615.9 692.1 - 82.5


Custom Stainless Steel Flanges Manufacturer



  • what is custom?
  • WE manufacture custom flanges to meet our customer specifications.
  • Give us your engineering drawings and We will get you the custom flanges
  • Wide Range of materials :
  • Carbon Steels
  • High Strength Steels
  • 304, 304L, 316, 316L
  • Rating
  • ASME Class 150 lbs. to Class 3,000 lbs.
  • Finishing Services
  • Painting
  • Plating
  • Diameter
  • Up to 72 inch
  • Surface Finish
  • 16 Ra
  • Tolerance
  • ± 0.0005 in.

Forged Stainless Steel Flanges Test Certificates

  • 100% Radiography Test Report
  • Raw Materials Certificate
  • Third Party Inspection Repor
  • EN 10204/3.1B,

Large Diameter Stainless Steel Flanges



Size : NPS 26 through NPS 60



Table E Stainless Steel Flange Dimensions



Normal Bore Size (NBS) (D) (K) (L) (A) (C) (N1) (N2) (B) (H1) (H2) (R1) (R2) (Flanges Holes)
½" 15 95.3 66.8 14.5 21.3 6.4 27.0 33.3 22.4 9.5 22.2 6.4 1.6 4
¾" 20 101.6 73.2 14.5 26.7 6.4 33.3 38.1 27.7 11.1 22.2 6.4 1.6 4
1" 25 114.3 82.6 14.5 33.5 7.2 42.9 47.6 34.6 11.1 22.2 6.4 1.6 4
1 ¼" 32 120.7 87.4 14.5 42.2 7.9 49.2 55.6 43.2 11.1 25.4 6.4 1.6 4
1 ½" 40 133.4 98.6 14.5 48.3 8.7 58.7 61.9 49.5 12.7 28.6 6.4 1.6 4
2" 50 152.4 114.3 17.5 60.5 9.5 69.9 74.6 62.0 12.7 28.6 6.4 1.6 4
2 ½" 65 165.1 127.0 17.5 73.2 10.3 82.6 90.5 74.7 15.9 31.8 6.4 1.6 4
3" 80 184.2 146.1 17.5 88.9 11.1 101.6 106.4 90.7 15.9 34.9 6.4 1.6 4
3 ½" 88 203.2 165.1 17.5 101.6 11.9 114.3 119.1 103.4 17.5 34.9 6.4 1.6 4
4" 100 215.9 177.8 17.5 114.3 12.7 130.2 133.4 116.1 19.1 41.3 9.5 3.2 4
5" 125 254.0 209.6 17.5 141.2 14.3 152.4 160.3 143.8 19.1 44.5 9.5 3.2 8
6" 150 279.4 235.0 17.5 168.4 17.5 184.2 185.7 171.7 19.1 47.6 9.5 3.2 8
8" 200 336.6 292.1 17.5 219.2 19.1 241.3 241.3 221.5 22.2 50.8 9.5 3.2 8
10" 250 406.4 355.6 22.2 273.1 22.2 292.1 298.5 276.4 27.0 63.5 9.5 3.2 8
12" 300 457.2 406.4 22.2 323.9 25.4 342.9 349.3 325.9 28.6 69.9 9.5 4.8 12
14" 350 527.1 469.9 25.4 355.6 28.6 406.4 - 359.2 - 73.0 9.5 4.8 12

Stainless Steel Square Flange Dimensions



European Standards Of Stainless Steel Pipe Flange

European standard EN 1092: Stainless Pipe Flanges and Their Joints (Circular Flanges for Pipes/ Valves/ Fittings and Accessories/ PN designated)


  • Steel flanges, PN 2.5 to PN 400



Manufacturer of DN80 Stainless Steel Flange for petrochemical plants, check DIN standards of SS Pipe Flange


DIN Standards For Stainless Steel Flanges



SS Pipe Flange Class Ratings


ASME B16.5 Piping class ratings based on PN rating
SS Flange Class 150 300 400 600 900 1500 2500
SS Flange Pressure Nominal, (PN) 20 50 68 100 150 250 420

Stainless Steel Flanges manufacturer in India offers 2 Inch, 4 Inch Tube Flange at factory price in Mumbai, ASTM SA182 Flanges available in various face such as Raised, RTJ, Flat, Tongue and Groove according to EN 1092-1


DN80 Stainless Steel Flange Dimensions



3" NB (DN80) Flange Dimensions Table

3" (Inch) Diameter Of Flange In MM PCD In MM Number of Bolt Holes Bolts Diameter In Metric/ MM Holes Diameter In MM Raised Face (RF) Diameter In MM Raised Face (RF) Height In MM
PN6 190 150 4 M16 18 128 3
PN10 200 160 8 M16 18 138 3
PN16 200 160 8 M16 18 138 3
PN25 200 160 8 M16 18 138 3
PN40 200 160 8 M16 18 138 3
PN64 215 170 8 M20 22 138 3
Table D 7 1/4" (184) 5 3/4" (146) 4 5/8" (16) 11/16" (17)    
Table E 7 1/4" (184) 5 3/4" (146) 4 5/8" (16) 11/16" (17)    
Table F 8" (203) 6 1/2" (165) 8 5/8" (16) 11/16" (17)    
Table H 8" (203) 6 1/2" (165) 8 5/8" (16) 11/16" (17) 5" (127) 1/16" (2)
ANSI 125/150 7 1/2" (191) 6" (152) 4 5/8" (16) 3/4" (19) 5" (127) 1/16" (2)
ANSI 300 8 1/4" (210) 6 5/6" (168) 8 3/4" (19) 7/8" (22) 5" (127) 1/16" (2)

Stainless Steel Forged Flanges Value Added Services

  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Hardness Test
  • Chemical Equipment
  • Pitting Resistance Test
  • Positive Material Identification – PMI Testing
  • Micro and MacroTest
  • Flattening Test
  • Mechanical Testing Such as Tensile of Area

Stainless Steel Puddle Flange Dimensions



SS Flange Price List


Type Of Flange Size In Inch SCH Class Grade Price In INR (India) Per Piece
Stainless Steel Blind Flange 3/4 40 150 ASTM A182 F304 120.00
1 40 150 - 143.00
Blind 1-1/2 40 150 - 234.00
Stainless Steel Weld Neck Flange 2 STD 150 - 310.00
- 4 STD 300 - 650.00
Weld Neck 6 80 300 - 987.00
Stainless Steel Slip On Flange 2 40 150 - 187.00
- 3 40 150 - 347.00
Slip On 8 80 300 ASTM A182 F304 1200.00

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Looking for Large Diameter Stainless Steel Flanges? Buy directly from SS Flange manufacturer in Mumbai, we produce Class 150-2500 Stainless Pipe Flanges in plate, forging and casting methods

Advantages Of Forged Stainless Steel Flanges




Forging Process Of Stainless Steel Flanges



Marking On Stainless Steel Flanges



  • size
  • item
  • specification and number
  • pressure rating, with unit
  • OD
  • WT, with unit
  • bore when applicable
  • std schedule when applicable,
  • material specification
  • 6"
  • FLANGE
  • RFWN
  • ASME B16.5 #150
  • 6" OD x 0.250"
  • 152.4 Unit
  • Bore 15.500"
  • SCH10S
  • ASTM A182 F304



Face Types Of Forged Stainless Flanges




Stainless Steel Flanges Wall Thickness


Normal Size Of Pipe Outer Diameter (O.D.) 10 Schedule 20 Schedule 30 Schedule STD Wall 40 Schedule 60 Schedule EXT Hvy 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 Schedule 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 - - - - - -

  • SS Pipe Flanges Dimensions in inches And Weight in pounds.
  • Wall thicknesses are identical to steel (SS) Sche 10S in size through 12″ Inch, and to Sch 10 sizes 14 Inch″, Or larger.
  • Standard Wall thick. are identical to steels flanges Sch 40S in size though 10″ inch.
  • Extra Heavy Wall thick. (WT) are identical to flange Sch 80S in sizes through 8″ inch.
  • Other sizes or thick. types of steels flanges can be provided to meet applications.
  • SS Flange manufacturer and Stocked in and carbon steels, or variety of other metals and alloy steels.

Manufacturer of Stainless Steel Pipe Flange in Plate ASTM A240 (Forging) or ASTM A351 (Casting) as per ANSI/ ASME B16.5 specification, check SS Flange price in India

4 Inch Stainless Steel Flange Documentation

  • Raw Material Test Reports
  • Fumigation Certificates
  • Fumigation Certificates
  • Guarantee Letter
  • QAP (Quality Assurance Plan)
  • NABL approved Laboratory Test Reports
  • Heat Treatment Charts
  • Commercial Invoice which includes HS Code

SS Flange Standard


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

Stainless Steel Pipe Flange 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

ASTM SA182 Flange Packaging







ASTM A182 SS Flange Tolerance


Type Of ASME/ ANSI B16.5 2 Inch Stainless Flange Diameter Tolerance Chart
(A) (Outer Diameter)
  • When Outer Diameter is 24 Inch or less: ±1/16" (1.6 mm)
  • When Outer Diameter is over 24": ±1/8" (3.2 mm)
(D) (Inner Diameter)
  • 10 Inches and smaller: ±1/32" (0.8 in mm)
  • 12 Inches thru 18": +1/8" (3.2 in mm)
  • 20 Inches and larger: -1/16" (1.6 in mm)
(B) Contact Face
  • 1/16" (RF): ±1/32" (0.8 mm)
  • 1/4" (RF), Tongue And Groove (male And female): ±1/64" (0.4 mm)
(J) Hub At Base Dai.
  • When hub base is 24 inches or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
(H) Diameter of hub at point of welding
  • 5 inch or smaller: +3/32" (2.4 mm), -1/32" (0.8 millimeter)
  • 6 inch or larger: +5/32" (4.0 millimeter), -1/32 (0.8 mm)
(P) Drilling
  • (B.C.): ±1/16" (1.6 mm)
  • (B.H.) spacing: ±1/32" (0.8 mm)
  Eccentricity of (bc) with respect to facing
  • 2 1/2" or smaller ±1/32" (0.8 mm) max.
  • 3" or larger ±1/16" (1.6 mm) max.
(C) (W.T.)
  • 18 inch or smaller: ±1/8" (3.2 mm), -0"
  • 20 inch or larger: ±3/16" (4.8 mm), -0"
(K) hub Length
  • 10 Inch or smaller: ±1/16" (1.6 millimeter)
  • 12 Inch or larger: ±1/8" (3.2 millimeter)

Steel Flanges Production Process



Stainless Steel Flange HS Code


HS Code For SS Pipe Flanges Des Of Item Policy
73072100 4 Inch Stainless Steel Flange Free

Stainless Steel Flange Machine







  • Tee Beveling Machine
  • CNC Lath
  • Oil Fired Heat Treatment Furnace
  • Hydraulic Press 300 Tons Capacity
  • Radial Driling Machine
  • Elbow Beveling Machine
  • Conventional Machine
  • Tee Cold Forming Machines
  • Elbow Cold Forming Machines
  • Heat Treatment For Forged Fittings
  • Hydraulic Press 150 Tons Capacity
  • Portable Temperature Indicator

Different Types Of SS Flanges


Stainless Steel Pipe Flanges

SS Flanges

SS Pipe Flanges

Steel Flange

Stainless Flange

Stainless Pipe Flanges

Stainless Steels Floor Flange

Steel Tank Flange

Forged Stainless Steel Flanges

Flange SS

Stainless Steels Threaded Flange

Stainless Steels Forged Flanges

Van Stone Flange Stainless Steels

Forged Stainless Flanges

SS Threaded Pipe Flange

Stainless Floor Flange

4 Inch Stainless Steel Flange

2 Inch Stainless Steel Flange

Stainless Steel Backing Flange

Stainless Steel Sink Flange

Stainless Steels Duct Flange

Steel Tube With Flange

SS Flange 2 Inch

Pn16 Stainless Steel Flanges

6 Inch Steel Pipe Flange

SS Threaded Flange

Stainless Steel Companion Flange

Stainless Steel Flange Bolt Torque


SS Pipe Flange Size Inch SS Pipe Flange Size MM (Maximum) Radial Projection
No Deeper Than the Bottom In Millimeter Deeper Than the Bottom In Millimeter
1/2 15 3.0 1.5
3/4 20 3.0 1.5
1 25 3.0 1.5
1 1/4 32 3.0 1.5
1 1/2 40 3.0 1.5
2 50 3.0 1.5
2 1/2 65 3.0 1.5
3 80 4.5 1.5
3 1/2 90 6.0 3.0
4 100 6.0 3.0
5 125 6.0 3.0
6 150 6.0 3.0
8 200 8.0 4.5
10 250 8.0 4.5
12 300 8.0 4.5
14 350 8.0 4.5
16 400 10.0 4.5
18 450 12.0 6.0

Stainless Steel Flange Bore Size


Loose (Lap Joint) And SORF (Slip On) Flange Bores

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

Counter Bores, NPT (Threaded) Flange

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

Counter Bores, Welding (Weld Neck) Flange

ANSI B16.5 Size ASME B16.5 Tolerance
1/2 ≤ Normal Size Of Pipe ≤ 3 ±0.25 mm (±0.010 in.)

Vishal Steel Is Prominent Stainless Steel Flanges Suppliers In South And North America, Europe And West Africa:

Forged Stainless Steel Flanges

Saudi Arabia (KSA), Dubai, Hong Kong, China.

Stainless Steel Forged Flanges

Germany, Oman, Malaysia, Poland, Qatar.

Stainless Steel Pipe Flange

Iran, Brazil, United Arab Emirates (UAE).

2 Inch Stainless Steel Flange

Netherlands, USA, United States, Canada.

4 Inch Stainless Steel Flange

Singapore, Vietnam, Mexico, Denmark.

ASTM A182 Flanges

Thailand, Finland, Russia, Belgium.

Stainless Pipe Flanges

Egypt, Philippines, South Korea, Italy.

Steel Tube Flange

Spain, Jakarta, Australia, Jordan.

PN16 Stainless Steel Flanges

France, Taiwan, Kuwait, Portugal.

SS Flange Bolt Chart



Stainless Flange Heat Treatment Process


Name Of Grade Types Of Heat Treatment Austenitizing & Solutioning Cooling Quenching Tempering
Types Of Treat temperature (Temp.), minimum. (°F) Media Cool Temp.
Stainless Steel 304 Flanges Solution 1900 [1040] Liquid 500 [260] B
treat and
quench
Stainless Steel 304L Flanges Solution 1900 [1040] Liquid 500 [260] B
treat and
quench
Stainless Steel 316 Flanges Solution 1900 [1040] Liquid 500 [260] B
treat and
quench
Stainless Steel 316L Flanges Solution 1900 [1040] Liquid 500 [260] BB
treat and
quench
Stainless Steel 321 Flanges Solution 1900 [1040] Liquid 500 [260]
treat and
quench
Stainless Steel 347 Flanges Solution 1900 [1040] liquid 500 [260] B
treat and
quench

Stainless Pipe Flanges Equivalent


Name Of STANDARD JIS STANDARD BS STANDARD WERKSTOFF Number UNS Number GOST STANDARD AFNOR STANDARD EN STANDARD
Stainless Steel 304 Flanges SUS 304 304S31 1.4301 S30400 08Х18Н10 Z7CN18‐09 X5CrNi18-10
Stainless Steel 304L Flanges SUS 304L 3304S11 1.4306 / 1.4307 S30403 03Х18Н11 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11
Stainless Steel 316 Flanges SUS 316 316S31 / 316S33 1.4401 / 1.4436 S31600 – Z7CND17‐11‐02 X5CrNiMo17-12-2 / X3CrNiMo17-13-3
Stainless Steel 316L Flanges SUS 316L 316S11 / 316S13 1.4404 / 1.4435 S31603 03Ch17N14M3 / 03Ch17N14M2 Z3CND17‐11‐02 / Z3CND18‐14‐03 X2CrNiMo17-12-2 / X2CrNiMo18-14-3
Stainless Steel 321 Flanges SUS 321 – 1.4541 S32100 – – X6CrNiTi18-10
Stainless Steel 347 Flanges SUS 347 – 1.4550 S34700 08Ch18N12B – X6CrNiNb18-10

ASTM A182 Flanges Chemical Composition


ASTM A182 Flanges Composition, %
Grade Carbon Manganese Phosphorus Sulfur Silicon Nickel
Stainless Steel 304 Flanges 0.08 2.0 0.045 0.03 1.0 8.0
11.0
Stainless Steel 304L Flanges 0.03 2.0 0.045 0.03 1.0 8.0
13.0
Stainless Steel 310 Flanges 0.25 2.0 0.045 0.03 1.0 19.0
22.0
Stainless Steel 316 Flanges 0.08 2.0 0.045 0.03 1.0 10.0
14.0
Stainless Steel 316L Flanges 0.03 2.0 0.045 0.03 1.0 10.0
15.0
Stainless Steel 321 Flanges 0.08 2.0 0.045 0.03 1.0 9.0
12.0
Stainless Steel 347 Flanges 0.08 2.0 0.045 0.03 1.0 9.0
13.0

ASTM A182 Mechanical Properties


Grade Name UNS No. Tensile Properties
(ksi) (minimum)		 Yield Properties
(ksi) (minimum)		 Elongation Properties
(minimum)		 Hardnes Properties
(Brinell) (maximum)		 Hardness
(Rockwell B) (maximum)
Stainless Steel 304 Flanges S30400 75 30 40% in 2″ 183 88
Stainless Steel 304L Flanges S30403 70 30 40% in 2″ 183 88
Stainless Steel 316 Flanges S31600 75 30 40% in 2″ 217 95
Stainless Steel 316L Flanges S31603 70 25 35% in 2″ 217 95
Stainless Steel 321 Flanges S32100 75 30 40% in 2″ 183 88
Stainless Steel 347 Flanges S34700 75 30 40% in 2″ 183 88

Manufacturing Process Of Stainless Steel Flanges



ASTM/ASME Group 2-2.3 Materials


Designation Type Of Forgings Type Of Cast Type Of Plates
16Cr 12Ni 2Mo ASTM A182
Grade F316L		 ... A240
Grade 316L
18Cr 13Ni 3Mo ASTM A182
Grade F317L		 ... ...
18Cr 8Ni ASTM A182
Grade F304L (1)		 ... ASTM A240
Grade 304L (1)

ASTM/ASME Group 2-2.3 Materials Pressure-Temperature Ratings


Working pressure by (Class), BAR

Temperature In (°C) Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
-29 TO 38 15.9 41.4 55.2 82.7 124.1 206.8 344.7
50 15.3 40 53.4 80 120.1 200.1 333.5
100 13.3 34.8 46.4 69.6 104.4 173.9 289.9
150 12 31.4 41.9 62.8 94.2 157 261.6
200 11.2 29.2 38.9 58.3 87.5 145.8 243
250 10.5 27.5 36.6 54.9 82.4 137.3 228.9
300 10 26.1 34.8 52.1 78.2 130.3 217.2
325 9.3 25.5 34 51 76.4 127.4 212.3
350 8.4 25.1 33.4 50.1 75.2 125.4 208.9
375 7.4 24.8 33 49.5 74.3 123.8 206.3
400 6.5 24.3 32.4 48.6 72.9 121.5 202.5
425 5.5 23.9 31.8 47.7 71.6 119.3 198.8
450 4.6 23.4 31.2 46.8 70.2 117.1 195.1

Types Of Piping Materials