API FLANGE, API 6A FLANGE Suppliers

API Flanges Supplier, API Series A and B API Flanges, Alloy Steel API Plate Flanges, Carbon Steel API Flange, Manufacturer of API Flanges, Nickel Alloy 200 API Flange, API Flange Dimensions, MSS SP-44 API Flanges in Mumbai, India.

Hastelloy C22 API Flange, Best Price of Duplex Steel API Flanges, Inconel API PN40 Flanges, Stockholder Of PN6 API Flanges, Copper Nickel API Flanges Exporter, Alloy 20 API Flanges Traders in India.

API Flanges Manufacturer

Rajtilak Metal Is An ISO: 9001, 14001 & OHSAS: 18001 Certified Company. We are One Of The Leading API Flanges Manufacturer, Suppliers & Exporter in India. We offer latest technical advancements and carry well maintained inventory ready for immediate delivery to any location. We are supplying flanges in almost everywhere India and also exporting it to countries like UK, Belgium, Saudi Arabia, Dubai, Singapore, Thailand, etc.

API Flange Manufacturer, Supplies Of API Flanges, API Forged Flange, API Flanges in Forged Steel, Stainless Steel, Carbon Steel C22.8, RST37.2, S235JR, P235GH, P245GH, P250GH, ASTM A105, ASTM A182 F304 (1.4306), F304L(1.4307), F316(1.4404), F316L(1.4404), F321(1.4541) etc.

Stockist of Stainless Steel API PN6 Flanges, API Class 150 API Flange, API Pipe Flanges, Global Supplier of API Flanges, ASTM A182 SS API Flange, API Plate Flanges Dealer in India, API Blind Flanges, API Lapped joint Flanges, API Threaded Flange, API Plate Flange Wholesaler.


Contact Rajtilak Metal For Competitive Quotation And Latest Price On Fittings And Fasteners
Call Us On : +91-22-6743 7342
E-mail Us On : info@rajtilakmetal.com


Standard Specification For API Flanges :

  • Type: slip on flange, blind flange, welded neck flange, threaded flange, lapped joint flange(loose flange), socket welded flange, Orifice Flanges, long welded neck flange
  • Material: Carbon steel: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
  • Standard: ANSI/ASME B16.47 Ser.A, MSS SP-44 Flange
  • Size: 26 inch to 48 inch
  • Pressure: As Per MSS SP-44 Flange
  • Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
  • Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
  • E-catalogue: Available , please visit catalogue of flange
  • Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.

Manufacturing Standards Of API Flangess :

Stainless Steel API Flanges : 
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel API Flanges : 
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel API Flanges : 
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706

Low Temperature Carbon Steel API Flanges : ASTM A350, LF2, LF3

Alloy Steel API Flanges : 
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel API Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200

Nickel Alloy API Flanges : 
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)


Types Of API Flanges :
API Forged Flanges API High Hub Blinds Flanges
API Blind Flanges API Spectacle Blinds Flanges
API Reducing Flanges API Loose Flanges
API Orifice Flanges API RTJ Flanges
API Socket Weld Flanges API Screwed Flanges
API Slip On Flanges API Weld Neck Flanges
API Flat Flanges API Flange Facing Type & Finish
API Lapped Joint Flanges API SORF Flanges
API SWRF Flanges API Groove & Tongue Flanges
API Square Flanges API Long Neck Weld Flanges
API Threaded Flanges API Spades Ring Spacers Flanges
API Weld Neck Flanges Series A or B API Ring Type Joint Flanges
API WNRF Flanges API Weldo / Nipo Flanges
API Expander Flanges  

API Flange, API 6A Flange Dimensions

Flange Size Working Pressure (PSI) Outside Diameter Number of Bolt Holes Diameter of Bolt Holes Length of Bolts API Ring Gasket
1-13/16" 10,000 7-3/8" 8 3/4" 5-1/4" BX-151
1-13/16" 15,000 8-3/16" 8 7/8" 6" BX-151
1-13/16" 20,000 10-1/8" 8 1" 7-3/4" BX-151
2-1/16" 2,000 6-1/2" 8 5/8" 5/8" R-23
2-1/16" 3,000/5,000 8-1/2" 8 7/8" 7/8" R-24
2-1/16" 10,000 7-7/8" 8 3/4" 3/4" BX-152
2-1/16" 15,000 8-3/4" 8 7/8" 7/8" BX-152
2-1/16" 20,000 11-5/16" 8 1-1/8" 1-1/8" BX-152
2-9/16" 2,000 7-1/2" 8 3/4" 5-1/4" R-26
2-9/16" 3,000/5,000 9-5/8" 8 1" 7" R-27
2-9/16" 10,000 9-1/8" 8 7/8" 6-1/4" BX-153
2-9/16" 15,000 10" 8 1" 7" BX-153
2-9/16" 20,000 12-13/16" 8 1-1/4" 9-1/2" BX-153
3-1/8" 2,000 8-1/4" 8 3/4" 5-1/2" R-31
3-1/8" 3,000 9-1/2" 8 7/8" 6-1/4" R-31
3-1/8" 5,000 10-1/2" 8 1-1/8" 7-3/4" R-35
3-1/16" 10,000 10-5/8" 8 1" 7-1/4" BX-154
3-1/16" 15,000 11-5/16" 8 1-1/8" 8" BX-154
3-1/16" 20,000 14-1/16" 8 1-3/8" 10-3/4" BX-154
4-1/16" 2,000 10-3/4" 8 7/8" 6-1/4" R-37
4-1/16" 3,000 11-1/2" 8 1-1/8" 7-1/2" R-37
4-1/16" 5,000 12-1/4" 8 1-1/8" 8-3/8" BX-155
4-1/16" 20,000 17-9/16" 8 1-3/4" 12-3/4" BX-155
5-1/8" 5,000 14-3/4" 8 1-1/2" 10-3/4" R-44
7-1/16" 2,000 14" 12 1" 7-1/2" R-45
7-1/16" 3,000 15" 12 1-1/8" 8-1/2" R-45
7-1/16" 5,000 15-1/2" 12 1-3/8" 11-1/4" R-46
7-1/16" 10,000 18-7/8" 12 1-1/2" 11-3/4" BX-156
7-1/16" 15,000 19-7/8" 16 1-1/2" 13" BX-156
7-1/16" 20,000 24-13/16" 16 2" 17-3/4" BX-156
9" 2,000 16-1/2" 12 1-1/8" 8-1/2" R-49
9" 3,000 18-1/2" 12 1-3/8" 9-1/2" R-49
9" 5,000" 19" 12 1-5/8" 12-1/2" R-50
9" 10,000 21-3/4" 16 1-1/2" 13-1/4" BX-157
9" 15,000 25-1/2" 16 1-7/8" 16" BX-157
11" 2,000 20" 16 1-1/4" 9-1/4" R-53
11" 3,000 21-1/2" 16 1-3/8" 10" R-53
11" 5,000 23" 12 1-7/8" 14-1/4" R-54
11" 10,000 25-3/4" 16 1-3/4" 15-3/8" BX-158
11" 15,000 32" 20 2" 19-1/2" BX-158
13-5/8" 2,000 22" 20 1-1/4" 9-1/2" R-57
13-5/8" 3,000 24" 20 1-3/8" 10-3/4" R-57
13-5/8" 5,000 26-1/2" 16 1-5/8" 12-3/4" BX-160
13-5/8" 10,000 30-1/4" 20 1-7/8" 17-3/4" BX-159
13-5/8" 15,000 34-7/8" 20 2-1/4" 21" BX-159
16-3/4" 2,000 27" 20 1-1/2" 10-3/4" R-65
16-3/4" 3,000 27-3/4" 20 1-5/8" 12-1/4" R-66
16-3/4" 5,000 30-3/8" 16 1-78" 14-3/4" BX-162
16-3/4" 10,000 34-5/16" 24 1-7/8" 17-3/4" BX-162
18-3/4" 5,000 35-5/8" 20 2" 18" BX-163
16-3/4" 10,000 40-15/16" 24 2-1/4" 23" BX-164
20-3/4" 3,000 33-3/4" 20 2" 15-1/4" R-74
21-1/4" 2,000 32" 24 1-5/8" 12-1/2" R-73
21-1/4" 5,000 39" 24 2" 19" BX-165
21-1/4" 10,000 45" 24 2-1/2" 24-3/4" BX-166
26-3/4" 2,000 41" 20 1-3/4" 14-1/4" BX-167
21-1/4" 3,000 43-3/8" 24 2" 17-1/2" BX-168

API 6A Type 6BX 15000PSI Blind / Welding Neck Flange

we are supplier of API 6A flanges like 15000PSI(103.5MPA) API 6A type 6BX blind/Welding Neck Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI (13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI (69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 15000PSI(103.5MPA) type 6BX blind/Welding Neck API 6A Flange

Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H Ring Number
1 13/16" 46.8 210 3 - 5.56 77.77 106 45.3 97.6 71.4 47.6 - 10 160.3 8 26 151
2 1/16" 53.2 220 3 - 5.95 86.23 114 50.8 111.1 82.5 54 - 10 174.6 8 26 152
2 9/16" 65.9 255 3 - 6.75 102.77 133 57.2 128.6 100 57.1 - 10 200 8 29 153
3 1/16" 78.6 290 3 - 7.54 119 154 64.3 154 122.2 63.5 - 10 230.2 8 32 154
4 1/16" 104 360 3 - 8.33 150.62 194 78.6 195.3 158.7 73 - 10 290.5 8 39 155
5 1/8" 131 420 3 9.5 9.53 176.66 225 98.5 244.5 200 81.8 6.4 16 342.9 12 42 169
7 1/16" 180.2 505 6 11.1 11.11 241.83 305 119.1 325.4 276.2 92.1 7.9 16 428.6 16 42 156
9 " 229.4 650 6 12.7 12.7 299.06 381 146.1 431.8 349.2 123.8 14.2 16 552.4 16 51 157
11" 280.2 815 6 14.3 14.29 357.23 454 187.4 584.2 427 235.7 12.7 16 711.2 20 54 158
13 5/8" 346.9 885 6 15.9 15.88 432.64 541 204.8 595.3 528.6 114.3 17.5 25 771.5 20 61 159
18 3/4" 477 1160 6 18.3 18.26 577.9 722 255.6 812.8 730.2 155.6 35.1 25 1016 20 80 164

1. RING NUMBER BX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

API 6A Type 6B 2000PSI Blind / Welding Neck Flange

We are supplier of API 6A flanges like 2000PSI(13.8MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 2000PSI (13.8MPA) type 6B Blind and Welding Neck API 6A Flange

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 165 3 108 82.55 7.9 33.4 25.4 84 127 8 20 81 60.3 53.3 23
2 9/16" 65.9 190 3 127 101.6 7.9 36.6 28.6 100 149.2 8 23 88 73 63.5 26
3 1/8" 81.8 210 3 146 123.83 7.9 39.7 31.8 117 168.3 8 23 91 88.9 78.7 31
4 1/16" 108.7 275 3 175 149.23 7.9 46.1 38.1 152 215.9 8 26 110 114.3 103.1 37
5 1/8" 131 330 3 210 180.98 7.9 52.4 44.5 189 266.7 8 29 122 141.3 122.9 41
7 1/16" 181.8 355 6 241 211.15 7.9 55.6 47.6 222 292.1 12 29 126 168.3 147.1 45
9" 229.4 420 6 302 269.88 7.9 63.5 55.6 273 349.3 12 32 141 219.1 199.1 49
11" 280.2 510 6 356 323.85 7.9 71.5 63.5 343 431.8 16 35 160 273 248.4 53
13 5/8" 346.9 560 6 413 381 7.9 74.7 66.7 400 489 20 35 - - - 57
16 3/4" 426.2 685 6 508 469.9 7.9 84.2 76.2 495 603.2 20 42 - - - 65
21 1/4" 540.5 815 6 635 584.2 9.7 98.5 88.9 610 723.9 24 45 - - - 73

1. RING NUMBER R or RX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

API 6A Type 6BX 2000PSI Blind Flange

We are supplier of API 6A flanges like 2000PSI(13.8MPA) API 6A type 6BX Blind Flange, include type 6B, 6BX with RTJ connection, pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 2000PSI (13.8MPA) type 6BX Blind API 6A Flange

Size OD C E1 G K T J1 J4 R BC N H BX
26 3/4" 1040 6 21.4 768.33 805 126.3 835.8 9.7 16 952.5 20 48 167
30" 1120 6 23 862.3 908 134.2 931.9 17.5 16 1039.8 32 45 303

1. RING NUMBER BX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

API 6A Type 6B 3000PSI Blind / Welding Neck Flange

We are supplier of API 6A flanges like 3000PSI(20.7MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 3000PSI (20.7MPA) type 6B Blind and Welding Neck API 6A Flange

Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.6 60.3 50 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 59.7 27
3 1/8" 81.8 240 3 156 123.83 7.9 46.1 38.1 127 190.5 8 26 109.5 88.9 74.4 31
4 1/16" 108.7 290 3 181 149.23 7.9 52.4 44.4 158.8 235 8 32 122.2 114.3 98 37
5 1/8" 131 350 3 216 180.98 7.9 58.8 50.8 190.5 279.4 8 35 134.9 141.3 122.9 41
7 1/16" 181.8 380 6 241 211.15 7.9 63.5 55.6 235 317.5 12 32 147.6 168.3 147.1 45
9" 229.4 470 6 308 269.88 7.9 71.5 63.5 298.5 393.7 12 39 169.9 219.1 189.7 49
11" 280.2 545 6 362 323.85 7.9 77.8 69.9 368.3 469.9 16 39 192.1 273 237.2 53
13 5/8" 346.9 610 6 419 381 7.9 87.4 79.4 419.1 533.4 20 39 - - - 57
16 3/4" 426.2 705 6 524 469.9 11.2 100.1 88.9 508 616 20 45 - - - 66
20 3/4" 527.8 855 6 648 584.2 12.7 120.7 108 622.3 749.3 20 54 - - - 74

1. RING NUMBER R or RX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

API 6A Type 6B 5000PSI Blind / Welding Neck Flange

We are supplier of API 6A flanges like 5000PSI(34.5MPA) API 6A type 6B Welding Neck Flange Blind Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI(13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 5000PSI (34.5MPA) type 6B Blind and Welding Neck API 6A Flange
Size B OD C K P E T Q X BC N H LN HL JL R/RX
2 1/16" 53.2 215 3 124 95.25 7.9 46.1 38.1 104.8 165.1 8 26 109.5 60.3 43.7 24
2 9/16" 65.9 245 3 137 107.95 7.9 49.3 41.3 123.8 190.5 8 29 112.7 73 54.9 27
3 1/8" 81.8 265 3 168 136.53 7.9 55.6 47.7 133.3 203.2 8 32 125.4 88.9 67.5 35
4 1/16" 108.7 310 3 194 161.93 7.9 62 54 161.9 241.3 8 35 131.8 114.3 88.1 39
5 1/8" 131 375 3 229 193.68 7.9 81 73.1 196.8 292.1 8 42 163.5 141.3 110.3 44
7 1/16" 181.8 395 6 248 211.15 9.7 92.1 82.6 228.6 317.5 12 39 181 168.3 132.6 46
9" 229.4 485 6 318 269.88 11.2 103.2 92.1 292.1 393.7 12 45 223.8 219.1 173.8 50
11" 280.2 585 6 371 323.85 11.2 119.1 108 368.3 482.6 12 51 265.1 273.1 216.7 54

1. RING NUMBER R or RX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH

API 6A Type 6BX 10000PSI Blind / Welding Neck Flange

We are supplier of API 6A flanges like 10000PSI(69.0MPA) API 6A type 6BX blind/Welding Neck Flange, include type 6B, 6BX with RTJ connection pressure rating from 2000PSI (13.8MPA), 3000PSI(20.7MPA), 5000PSI(34.5MPA), 10000PSI(69.0MPA), 15000PSI(103.5MPA), to 20000PSI(138.0MPA), which is precisely engineered in accordance with international quality standards totally.We offer these flanges in various dimensions as per the specifications provided by our clients. To gain optimum client satisfaction, we ensure safe packaging and prompt delivery of the ordered consignment.

Dimension of 10000PSI(69.0MPA) type 6BX blind/Welding Neck API 6A Flange
Size B OD C E1 Q G K T J1 J2 J3 J4 R BC N H BX
1 13/16" 46.8 185 3 - 5.56 77.77 105 42.1 88.9 65.1 48.5 - 10 146.1 8 23 151
2 1/16" 53.2 200 3 - 5.95 86.23 111 44.1 100 74.7 51.6 - 10 158.8 8 23 152
2 9/16" 65.9 230 3 - 6.75 102.77 132 51.2 120.7 92.1 57.2 - 10 184.2 8 26 153
3 1/16" 78.6 270 3 - 7.54 119 152 58.4 142.1 110.2 63.5 - 10 215.9 8 29 154
4 1/16" 104 315 3 - 8.33 150.62 185 70.3 182.6 146.1 73.1 - 10 258.8 8 32 155
5 1/8" 131 360 3 9.5 9.53 176.66 221 79.4 223.8 182.6 81 6.4 10 300 12 32 169
7 1/16" 180.2 480 6 11.1 11.11 241.83 302 103.2 301.6 254 95.3 9.7 16 403.2 12 42 156
9 " 229.4 550 6 12.7 12.7 299.06 359 123.9 374.7 327.1 93.7 9.7 16 476.3 16 42 157
11" 280.2 655 6 14.3 14.29 357.23 429 141.3 450.9 400.1 103.2 14.2 16 565.2 16 48 158
13 5/8" 346.9 770 6 15.9 15.88 432.64 518 168.3 552.5 495.3 114.3 17.5 16 673.1 20 51 159
16 3/4" 426.2 870 6 8.3 8.33 478.33 576 168.3 655.6 601.7 76.2 30.2 19 776.3 24 51 162
18 3/4" 477 1040 6 18.3 18.26 577.9 697 223.1 752.5 674.7 155.6 25.4 16 925.5 24 61 164
21 1/4" 540.5 1145 6 19.1 19.05 647.88 781 241.3 847.7 762 165.1 31.8 21 1022.4 24 67 166

1. RING NUMBER BX, 2. C should be the max value 3. Tolerance and Ring Gasket according to API 6A-20TH


API Flanges Application :
  • API Flanges uses in Oil and Gas Pipeline
  • API Flanges uses in Chemical Industry
  • API Flanges uses in Plumbing
  • API Flanges uses in Oil & Gas Industry
  • API Flanges uses in Water Supply Systems
  • API Flanges uses in Paper & Pulp Industry
  • API Flanges uses in Power Plant
  • API Flanges uses in Fabrication Industry
  • API Flanges uses in General purpose applications
  • API Flanges uses in Food Processing Industry
  • API Flanges uses in Structural Pipe
  • API Flanges uses in Heat Exchangers