Loose Flanges
UNS N08904 Loose Flanges, DIN 1.4301 Loose Flanges, UNS S30400 Loose Flanges, 2507 Super Duplex Loose Flanges, ASME SA182 Duplex 2205 Loose Flanges, ASTM A182 SS 304 Loose Flanges.

About Loose Flanges
NISSAN STEEL Manufacturer supplier of SS, High nickel and Duplex / Super duplex Flanges, for enquiry contact on email: sales@nissansteel.com, export@nissansteel.com, nissansteels@gmail.com
Inconel 625 Loose Flanges Exporter, 2507 Super Duplex Loose Flanges Supplier, ASME SA182 Duplex 2205 Loose Flanges Stockist.
Specification of Loose Flanges
Size Chart | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Loose Flange |
Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Loose Flange |
JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Loose Flange |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar Loose Flange |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar Loose Flange |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Loose Flange |
Most common types of Loose Flange | Forged / Threaded / Screwed / Plate |
Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
Dimensions Standard Of Loose Flanges

Class 150 Loose Flange Dimensions
Nominal Bore Loose Flanges | Dia. (D) | Thick. (E) | Dia. (B) | Dia. (A) | Height (H) | Nbr | Holes | Dia. (C) |
1/2″ | 90 | 11.2 | 30 | 22.9 | 16 | 4 | 15.87 | 60.3 |
3/4″ | 100 | 12.7 | 38 | 28.2 | 16 | 4 | 15.87 | 69.9 |
1″ | 110 | 14.3 | 49 | 34.9 | 17 | 4 | 15.87 | 79.4 |
1 1/4″ | 115 | 15.9 | 59 | 43.7 | 21 | 4 | 15.87 | 88.9 |
1 1/2″ | 125 | 17.5 | 65 | 50.0 | 22 | 4 | 15.87 | 98.4 |
2″ | 150 | 20.7 | 78 | 62.5 | 25 | 4 | 19.05 | 120.7 |
2 1/2″ | 180 | 22.3 | 90 | 75.4 | 29 | 4 | 19.05 | 139.7 |
3″ | 190 | 23.9 | 108 | 91.4 | 30 | 4 | 19.05 | 152.4 |
3 1/2″ | 215 | 23.9 | 122 | 104.1 | 32 | 8 | 19.05 | 177.8 |
4″ | 230 | 23.9 | 135 | 116.8 | 33 | 8 | 19.05 | 190.5 |
5″ | 255 | 23.9 | 164 | 144.4 | 36 | 8 | 22.22 | 215.9 |
6″ | 280 | 25.4 | 192 | 171.4 | 40 | 8 | 22.22 | 241.3 |
8″ | 345 | 28.6 | 246 | 222.2 | 44 | 8 | 22.22 | 298.5 |
10″ | 405 | 30.2 | 305 | 277.4 | 49 | 12 | 25.40 | 362.0 |
12″ | 485 | 31.8 | 365 | 328.2 | 56 | 12 | 25.40 | 431.8 |
14″ | 535 | 35.0 | 400 | 360.2 | 79 | 12 | 28.57 | 476.3 |
16″ | 595 | 36.6 | 457 | 411.2 | 87 | 16 | 28.57 | 539.8 |
18″ | 635 | 39.7 | 505 | 462.3 | 97 | 16 | 31.75 | 577.9 |
20″ | 700 | 42.9 | 559 | 514.4 | 103 | 20 | 31.75 | 635.0 |
24″ | 815 | 47.7 | 663 | 616.0 | 111 | 20 | 34.92 | 749.3 |
Class 300 Loose Flange Dimensions
Nominal Bore Loose Flanges | Dia. (D) | Thick. (E) | Dia. (B) | Dia. (A) | Height (H) | Nbr | Holes | Dia. (C) |
1/2″ | 95 | 14.3 | 38 | 22.9 | 22 | 4 | 15.87 | 66.7 |
3/4″ | 115 | 15.9 | 48 | 28.2 | 25 | 4 | 19.05 | 82.6 |
1″ | 125 | 17.5 | 54 | 34.9 | 27 | 4 | 19.05 | 88.9 |
1 1/4″ | 135 | 19.1 | 64 | 43.7 | 27 | 4 | 19.05 | 98.4 |
1 1/2″ | 155 | 20.7 | 70 | 50.0 | 30 | 4 | 22.22 | 114.3 |
2″ | 165 | 22.3 | 84 | 62.5 | 33 | 8 | 19.05 | 127.0 |
2 1/2″ | 190 | 25.4 | 100 | 75.4 | 38 | 8 | 22.22 | 149.2 |
3″ | 210 | 28.6 | 117 | 91.4 | 43 | 8 | 22.22 | 168.3 |
3 1/2″ | 230 | 30.2 | 133 | 104.1 | 44 | 8 | 22.22 | 184.2 |
4″ | 255 | 31.8 | 146 | 116.8 | 48 | 8 | 22.22 | 200.0 |
5″ | 280 | 35.0 | 178 | 144.4 | 51 | 8 | 22.22 | 235.0 |
6″ | 320 | 36.6 | 206 | 171.4 | 52 | 12 | 22.22 | 269.9 |
8″ | 380 | 41.3 | 260 | 222.2 | 62 | 12 | 25.40 | 330.2 |
10″ | 445 | 47.7 | 321 | 277.4 | 95 | 16 | 28.57 | 387.4 |
12″ | 520 | 50.8 | 375 | 328.2 | 102 | 16 | 31.75 | 450.8 |
14″ | 585 | 54.0 | 425 | 360.2 | 111 | 20 | 31.75 | 514.4 |
16″ | 650 | 57.2 | 483 | 411.2 | 121 | 20 | 34.29 | 571.5 |
18″ | 710 | 60.4 | 533 | 462.3 | 130 | 24 | 34.29 | 628.6 |
20″ | 775 | 63.5 | 587 | 514.4 | 140 | 24 | 34.29 | 685.8 |
24″ | 915 | 69.9 | 702 | 616.0 | 152 | 24 | 41.27 | 812.8 |
Class 600 Loose Flange Dimensions
Nominal Bore Loose Flanges | Dia. (D) | Thick. (E) | Dia. (B) | Dia. (A) | Height (H) | Nbr | Holes | Dia. (C) |
1/2″ | 95 | 14.3 | 38 | 23.6 | 22 | 4 | 15.87 | 66.7 |
3/4″ | 115 | 15.9 | 48 | 29.0 | 25 | 4 | 19.05 | 82.6 |
1″ | 125 | 17.5 | 54 | 35.8 | 27 | 4 | 19.05 | 88.9 |
1 1/4″ | 135 | 20.7 | 64 | 44.4 | 29 | 4 | 19.05 | 98.4 |
1 1/2″ | 155 | 22.3 | 70 | 50.6 | 32 | 4 | 22.22 | 114.3 |
2″ | 165 | 25.4 | 84 | 63.5 | 37 | 8 | 19.05 | 127.0 |
2 1/2″ | 190 | 28.6 | 100 | 76.2 | 41 | 8 | 22.22 | 149.2 |
3″ | 210 | 31.8 | 117 | 92.2 | 46 | 8 | 22.22 | 168.3 |
3 1/2″ | 230 | 35.0 | 133 | 104.9 | 49 | 8 | 25.40 | 184.2 |
4″ | 275 | 38.1 | 152 | 117.6 | 54 | 8 | 25.40 | 215.9 |
5″ | 330 | 44.5 | 189 | 144.4 | 60 | 8 | 28.57 | 266.7 |
6″ | 355 | 47.7 | 222 | 171.4 | 67 | 12 | 28.57 | 292.1 |
8″ | 420 | 55.6 | 273 | 222.2 | 76 | 12 | 31.75 | 349.2 |
10″ | 510 | 63.5 | 343 | 276.2 | 111 | 16 | 34.92 | 431.8 |
12″ | 560 | 66.7 | 400 | 328.6 | 117 | 20 | 34.92 | 489.0 |
14″ | 605 | 69.9 | 432 | 360.4 | 127 | 20 | 38.10 | 527.0 |
16″ | 685 | 76.2 | 495 | 411.2 | 140 | 20 | 41.27 | 603.2 |
18″ | 745 | 82.6 | 546 | 462.0 | 152 | 20 | 44.45 | 6654.0 |
20″ | 815 | 88.9 | 610 | 512.8 | 165 | 24 | 44.45 | 723.9 |
24″ | 940 | 101.6 | 718 | 614.4 | 184 | 24 | 50.80 | 838.2 |
Price Of Loose Flanges
Stainless Steel Flanges | USD $2.05 - $10.06 / Piece (FOB Price) on request |
High Nickel Alloys Flanges | USD $8.10 - $20.20 / Piece (FOB Price) on request |
Duplex & Super Duplex Flange | USD $10.20 - $35.50 / Piece (FOB Price) on request |
Cupro Nickel Flanges | USD $5.19 - $10.48 / Piece (FOB Price) on request |
Carbon Steel Flanges | USD $2.08 - $7.10 / Piece (FOB Price) on request |
Application Of Loose Flanges

We make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers.
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Oil & Gas Industries
- Sugar Industries
Testing Of Loose Flanges
We known for its accurate and perfect dimensions. We thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.
- Eddy Current Examining
- Hydrostatic Analysis
- Pitting Protection Test
- Power Generation Industries
- Positive Material Recognition

Packing Of Loose Flanges

We uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:
- Wooden Boxes
- Wooden Pallets
- Shrink-Wrapped
- Carton Boxes
- Wooden crates
UNS N08904 Loose Flanges Weight Calculator, DIN 1.4301 Loose Flanges Catalogue, 2507 Super Duplex Loose Flanges At Factory Price, ASME SA182 SS 316 Loose Flanges Price Per Kg, Inconel 625 Loose Flanges At Factory Price, UNS S30400 Loose Flanges Price List In India, ASME SA182 Duplex 2205 Loose Flanges At Factory Price.
DIN 1.4301 Loose Flanges Stockist in Ahmedabad, Hastelloy C276 Loose Flanges Stockist in Pimpri-Chinchwad, UNS S30400 Loose Flanges Manufacturer in Mumbai, ASME SA182 Duplex 2205 Loose Flanges Stockist in Chennai, UNS N08904 Loose Flanges Supplier in Hyderabad, ASME SA182 SS 316 Loose Flanges Supplier in Coimbatore, ASTM A182 SS 304 Loose Flanges Manufacturer in Bengaluru.
UNS S30400 Loose Flanges Manufacturer in Singapore, 2507 Super Duplex Loose Flanges Supplier in Qatar, UNS N08904 Loose Flanges Exporter in Kuwait, UNS N06625 Loose Flanges Exporter in South Africa, Inconel 625 Loose Flanges Exporter in Indonesia, ASME SA182 Duplex 2205 Loose Flanges Stockist in UAE, DIN 1.4301 Loose Flanges Stockist in Malaysia.
Types of Flanges
- Forge Flange
- Blind Flange
- Slip On Flange
- Weldneck Flange
- Lap Joint Flange
- Threaded Flange
- Socketweld Flange
- Long Weld Neck Flange
- Weldo / Nipo Flange
- Orifice Flange
- Reducing Flange
- Flat Flange
- Loose Flange
- RTJ Flanges
- SORF Flanges
- Square Flanges
- SWRF Flanges
- Expander Flanges
- WNRF Flanges
- Ring Type Joint Flanges
- Groove & Tongue Flanges
- Spectacle Blind Flanges
- Weld Neck Flanges A / B Flanges
- Spades Ring Spacers Flanges
- Screwed Flanges
- Forging Facing Flanges
- Flanges Bolts