
Honesty Steel & Alloys Ltd. is a manufacturer, exporter and supplier of Stainless Steel 316/316L Flanges. We offer multiple flange types, sizes, pressure classes, facing configurations and supply forms for standard and customized requirements.
Our stainless steel flanges are manufactured and supplied according to recognized international standards and customer-specific requirements. ASTM A182 / ASME SA182 is commonly specified for forged stainless steel flanges, while flange dimensions and pressure classes can be supplied to standards such as ASME B16.5, ASME B16.47, EN 1092-1, DIN, BS, JIS and other international specifications, subject to the ordered product.
Stainless Steel 316/316L Weld Neck Flanges are manufactured with a tapered hub that provides a gradual transition from the flange to the pipe. This design makes them suitable for demanding piping applications involving pressure, temperature and cyclic loading. They can be supplied with Raised Face or Ring Type Joint facings according to the applicable specification. SS 316/316L Blind Flanges are used extensively in corrosion-sensitive process piping and equipment. They can be supplied in RF, FF and RTJ configurations according to the applicable standard.
SS 316 Slip-On Flanges provide a practical flange connection for general industrial piping. They are installed over the pipe and welded into position. Their relatively simple installation makes them suitable for many low- and medium-pressure piping applications.
Stainless Steel 316 Socket Weld Flanges are generally used for smaller-diameter piping and provide a compact welded connection. They are suitable for industrial piping systems where the selected flange standard permits this configuration. Stainless Steel 316 Threaded Flanges use an internal thread to connect to externally threaded pipe. They may be selected for applications where welding is not practical, subject to the piping design and service conditions.
| Specification | Details |
|---|---|
| Product | Stainless Steel 316/316L Flanges |
| Material Type | Austenitic Stainless Steel |
| Standards | ASME, ASTM, ANSI, DIN, EN, BS, JIS |
| Common ASTM Specification | ASTM A182 |
| Common ASME Specification | ASME SA182 |
| Pressure Classes | 150, 300, 600, 900, 1500, 2500 |
| Nominal Size | 1/2" (15 NB) to 48" (1200NB) |
| Facing | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Manufacturing | Forged / Machined |
| Connection Types | Blind, Slip-On, Weld Neck, Socket Weld, Threaded, Lap Joint, etc. |
| Flanges Types | Blind Flanges (BLRF), Weld neck Flanges (WNRF), Drawing Flanges, Screwed (Threaded) Flanges, Long weld neck Flanges (LWNRF), Socket-weld Flanges (SWRF), Orifice Flanges, Reducing Flanges, Forged Flanges, Slip-on Flanges (SORF), Large Diameter Flanges, Spacer & Blind Flanges, Industrial Flanges, Spectacle Blind Flanges, Flat Face Flanges, Raised Face (RF) Flanges, Ring Type Joint Flanges (RTJ), Plate Flanges, Custom Flanges, Lap Joint Flanges (SOLJ), etc. |
| Surface | Machined / Polished as required |
| Testing | As per applicable specification |
| Marking | As per customer/specification requirements |
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 316 | S31600 | 1.4401/1.4436 | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | SUS 316 | 316S31/316S33 | - |
| SS 316L | S31603 | 1.4404/1.4435 | Z3CND17‐11‐02/Z3CND18‐14‐03 | X2CrNi18-9 / X2CrNi19-11 | SUS 316L | 316S11/316S13 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 316 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 | – |
| Grade | Density | Melting Point | Tensilee Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|---|
| SS 316/316L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 40 % |
Stainless Steel 316/316L Slip On Flanges
Stainless Steel 316/316L Socket Weld Flanges
Stainless Steel 316/316L Blind Flanges
Stainless Steel 316/316L Weld Neck Flanges
Stainless Steel 316/316L Threaded / Screwed Flanges
Stainless Steel 316/316L Lap Joint Flanges
Stainless Steel 316/316L Long Weld Neck Flanges
Stainless Steel 316/316L Spectacle Blind Flanges
Stainless Steel 316/316L Plate Flanges
Stainless Steel 316/316L Ring Type Joint Flanges
Stainless Steel 316/316L Tongue & Groove Flanges
Stainless Steel 316/316L Reducing Flanges
Stainless Steel 316/316L Nippo Flanges
Stainless Steel 316/316L Orifice Flanges
Stainless Steel 316/316L Square Flanges
Stainless Steel 316/316L Spades Ring Spacers Flanges
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| American Steel Flanges Standard | |
| Standard Code | Standard Name |
| ANSI ASME SA-182 | Forged Flanges |
| ANSI ASME B16.5 | Slip on flange, Welding neck flange, Blind flange, Threaded flange, Lap joint flange, RTJ flange |
| ASME – B 16.47 | Welding neck flange, Blind flange |
| ASME – B 16.36 | Welding neck flange Slip on flange |
| German Steel Flanges Standard | |
| DIN 2527 | Steel Blind Flanges, BLRF |
| DIN 2573 / 2576 | Flat Flange for Welding (Slip On) |
| DIN 2673 | Loose Flanges and Rings for Welding (Slip On Flanges and Plain Collars) |
| DIN 2641 / 2642 | Lapped / Loose (Lap Joint) Flanges Plain Collars |
| DIN 28115 | Long Neck Welding Flanges |
| DIN PN10, PN16 | SS 316 PN10 Flanges, 316 SS DIN PN 10 Flanges, 316 SS PN16 Flange |
| DIN PN20, PN25 | SS 316 PN20 Flanges, 316 SS DIN PN 25 Flanges |
| DIN PN40, PN50 | SS 316 PN40 Flanges, 316 SS DIN PN 50 Flanges |
| Japanese Steel Flanges Standard | |
| JIS B2220 | Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL) |
| JIS B2291 | Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL) |
| JIS 5K, 10K | SS 316 5K SORF Flanges, 316 SS 10K SOFF Flanges |
| JIS 16K, 20K | SS 316 16K Blind Flanges, 316 SS 20K BLRF Flanges |
| JIS 30K, 40K | SS 316 30K Slip on Flanges, 316 SS 40K Blind Flanges |
| Italian Flanges Standard | |
| UNI FLANGES | Plan flanges (2276, 2277, 2278, 6083, 6084) Welding neck (2280, 2281, 2282, 2283, 2284, 2285, 2286) Lapped flanges (6088, 6089, 6090, 2999, 2300) Blind flanges (6091, 6092, 6093, 6094, 6095, 6096, 6097) threaded flanges (2253, 2254) |
| British Standard Pipe Flanges Standard | |
| BS 10 Table D | SS 316 BS 10 Table D Flanges, 316 Table D Pipe Flange |
| BS 10 Table E | SS 316 BS 10 Table E Flanges, 316 Table E Pipe Flange |
| BS 10 Table F | SS 316 BS 10 Table E Flanges, 316 Stainless Steel Table E Flanges |
| BS 10 Table H | SS 316 BS 10 Table E Flanges, Stainless Steel 316 Table E Pipe Flanges |
| Pipe Normal Diam. | O.D. Flange | Thk. of Flange Min | Diam. of Hub | Diameter of Raised Face | Length Hub. Y | Thread Length | Diam.of Bolt Circle | Diam. of Bolt Holes | Number of Bolts | Diam. of Bolts (inch) | KG | LB | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | dn | O | C | X | G | Y | T | BC | BH | BN | BD | ||
| 1/2″ | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 60.50 | 15.80 | 4 | 1/2″ | 0.4 | 0.9 |
| 3/4″ | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 69.90 | 15.80 | 4 | 1/2″ | 0.7 | 1.5 |
| 1″ | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 79.30 | 15.80 | 4 | 1/2″ | 0.8 | 1.8 |
| 1-1/4″ | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 88.90 | 15.80 | 4 | 1/2″ | 1.2 | 2.6 |
| 1-1/2″ | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 98.60 | 15.80 | 4 | 1/2″ | 1.5 | 3.3 |
| 2″ | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 120.70 | 19.10 | 4 | 5/8″ | 2.3 | 5.1 |
| 2-1/2″ | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 139.70 | 19.10 | 4 | 5/8″ | 3.7 | 8.1 |
| 3″ | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 152.40 | 19.10 | 4 | 5/8″ | 4.1 | 9 |
| 3-1/2″ | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 177.80 | 19.10 | 8 | 5/8″ | 5.1 | 11.2 |
| 4″ | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 190.50 | 19.10 | 8 | 5/8″ | 5.9 | 13 |
| 5″ | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 215.90 | 22.40 | 8 | 3/4″ | 7 | 15.4 |
| 6″ | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 241.30 | 22.40 | 8 | 3/4″ | 8.4 | 18.5 |
| 8″ | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 298.50 | 22.40 | 8 | 3/4″ | 13 | 28.6 |
| 10″ | 250 | 406.50 | 30.20 | 316.80 | 323.90 | 49.30 | 49.30 | 362.00 | 25.40 | 12 | 7/8″ | 18 | 39.5 |
| 12″ | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 431.80 | 25.40 | 12 | 7/8″ | 29 | 64 |
| 14″ | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 476.30 | 28.50 | 12 | 1″ | 39 | 86 |
| 16″ | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 539.80 | 28.50 | 16 | 1″ | 47 | 103 |
| 18″ | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 577.90 | 31.80 | 16 | 1 1/8″ | 57 | 126 |
| 20″ | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 635.00 | 31.80 | 20 | 1 1/8″ | 76 | 167 |
| 24″ | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 749.30 | 35.10 | 20 | 1 1/4″ | 97 | 214 |
| Nominal Size | Outside Diameter (OD) |
Min. Thickness (T) |
RF Dia. (R) |
No. of Bolt Holes | Diameter of Holes | Bolt Circle (BC) |
SO Bore ID (SB) |
WN Bore ID (WB) |
Dia. Hub Base (HB) |
Dia. of Hub Top (HT) |
SO LTH (SL) |
WN LTH (WL) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1⁄2 | 3.50 | 0.38 | 1.38 | 4 | 0.62 | 2.38 | 0.88 | 0.62 | 1.19 | 0.84 | 0.56 | 1.81 |
| 3⁄4 | 3.88 | 0.44 | 1.69 | 4 | 0.62 | 2.75 | 1.09 | 0.82 | 1.50 | 1.05 | 0.56 | 2.00 |
| 1 | 4.25 | 0.50 | 2.00 | 4 | 0.62 | 3.12 | 1.36 | 1.05 | 1.94 | 1.32 | 0.62 | 2.12 |
| 11⁄4 | 4.62 | 0.56 | 2.50 | 4 | 0.62 | 3.50 | 1.70 | 1.38 | 2.31 | 1.66 | 0.75 | 2.19 |
| 11⁄2 | 5.00 | 0.62 | 2.88 | 4 | 0.62 | 3.88 | 1.95 | 1.61 | 2.56 | 1.90 | 0.81 | 2.38 |
| 2 | 6.00 | 0.69 | 3.62 | 4 | 0.75 | 4.75 | 2.44 | 2.07 | 3.06 | 2.38 | 0.94 | 2.44 |
| 21⁄2 | 7.00 | 0.81 | 4.12 | 4 | 0.75 | 5.50 | 2.94 | 2.47 | 3.56 | 2.88 | 1.06 | 2.69 |
| 3 | 7.50 | 0.88 | 5.00 | 4 | 0.75 | 6.00 | 3.57 | 3.07 | 4.25 | 3.50 | 1.12 | 2.69 |
| 31⁄2 | 8.50 | 0.88 | 5.50 | 8 | 0.75 | 7.00 | 4.07 | 3.55 | 4.81 | 4.00 | 1.19 | 2.75 |
| 4 | 9.00 | 0.88 | 6.19 | 8 | 0.75 | 7.50 | 4.57 | 4.03 | 5.31 | 4.50 | 1.25 | 2.94 |
| 5 | 10.00 | 0.88 | 7.31 | 8 | 0.88 | 8.50 | 5.66 | 5.05 | 6.44 | 5.56 | 1.38 | 3.44 |
| 6 | 11.00 | 0.94 | 8.50 | 8 | 0.88 | 9.50 | 6.72 | 6.07 | 7.56 | 6.63 | 1.50 | 3.44 |
| 8 | 13.50 | 1.06 | 10.62 | 8 | 0.88 | 11.75 | 8.72 | 7.98 | 9.69 | 8.63 | 1.69 | 3.94 |
| 10 | 16.00 | 1.12 | 12.75 | 12 | 1.00 | 14.25 | 10.88 | 10.02 | 12.00 | 10.75 | 1.88 | 3.94 |
| 12 | 19.00 | 1.19 | 15.00 | 12 | 1.00 | 17.00 | 12.88 | 12.00 | 14.38 | 12.75 | 2.12 | 4.44 |
| 14 | 21.00 | 1.31 | 16.25 | 12 | 1.12 | 18.75 | 14.14 | 13.25 | 15.75 | 14.00 | 2.19 | 4.94 |
| 16 | 23.50 | 1.38 | 18.50 | 16 | 1.12 | 21.25 | 16.16 | 15.25 | 18.00 | 16.00 | 2.44 | 4.94 |
| 18 | 25.00 | 1.50 | 21.00 | 16 | 1.25 | 22.75 | 18.18 | 17.25 | 19.88 | 18.00 | 2.62 | 5.44 |
| 20 | 27.50 | 1.62 | 23.00 | 20 | 1.25 | 25.00 | 20.20 | 19.25 | 22.00 | 20.00 | 2.81 | 5.62 |
| 22 | 29.50 | 1.75 | 25.25 | 20 | 1.38 | 27.25 | 22.22 | 21.25 | 24.25 | 22.00 | 3.07 | 5.82 |
| 24 | 32.00 | 1.81 | 27.25 | 20 | 1.38 | 29.50 | 24.25 | 23.25 | 26.12 | 24.00 | 3.19 | 5.94 |
| Size in Inch | Size in mm | No of Bolts | Outer Dia. | Hub OD | ISO Stud Size | Flange Length | RF Height | Flange Thick. | RF Dia. | PCD | Hole Size | Socket Bore | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | C | D | F | B | E | G | H | ||||||
| 1/2 | 15 | 4 | 90 | 30 | M14 | 14 | 2 | 9.6 | 34.9 | 60.3 | 5/8 | 22.2 | 0.8 |
| 1 | 25 | 4 | 110 | 49 | M14 | 16 | 2 | 12.7 | 50.8 | 79.4 | 5/8 | 34.5 | 0.9 |
| 3/4 | 20 | 4 | 100 | 38 | M14 | 14 | 2 | 11.2 | 42.9 | 69.9 | 5/8 | 27.7 | 0.9 |
| 1 1/4 | 32 | 4 | 115 | 59 | M14 | 19 | 2 | 14.3 | 63.5 | 88.9 | 5/8 | 43.2 | 1.4 |
| 2 | 50 | 4 | 150 | 78 | M16 | 24 | 2 | 17.5 | 92.1 | 120.7 | 3/4 | 61.9 | 2.3 |
| 1 1/2 | 40 | 4 | 125 | 65 | M14 | 21 | 2 | 15.9 | 73 | 98.4 | 5/8 | 49.5 | 1.4 |
| 2 1/2 | 65 | 4 | 180 | 90 | M16 | 27 | 2 | 20.7 | 104.8 | 139.7 | 3/4 | 74.6 | 3.2 |
| 3 | 80 | 4 | 190 | 108 | M16 | 29 | 2 | 22.3 | 127 | 152.4 | 3/4 | 90.7 | 3.7 |
| 4 | 100 | 8 | 230 | 135 | M16 | 32 | 2 | 22.3 | 157.2 | 190.5 | 3/4 | 116.1 | 5.9 |
| 3 1/2 | 90 | 8 | 215 | 122 | M16 | 30 | 2 | 22.3 | 139.7 | 177.8 | 3/4 | 103.4 | 5 |
| 5 | 125 | 8 | 255 | 164 | M20 | 35 | 2 | 22.3 | 185.7 | 215.9 | 7/8 | 143.8 | 6.8 |
| 8 | 200 | 8 | 345 | 246 | M20 | 43 | 2 | 27 | 269.9 | 298.5 | 7/8 | 221.5 | 13.7 |
| 10 | 250 | 12 | 405 | 305 | M24 | 48 | 2 | 28.6 | 323.8 | 362 | 1 | 276.2 | 19.5 |
| 6 | 150 | 8 | 280 | 192 | M20 | 38 | 2 | 23.9 | 215.9 | 241.3 | 7/8 | 170.7 | 8.6 |
| 12 | 300 | 12 | 485 | 365 | M24 | 54 | 2 | 30.2 | 381 | 431.8 | 1 | 327 | 29 |
| 24 | 600 | 20 | 815 | 663 | M33 | 81 | 2 | 46.1 | 692.2 | 749.3 | 1 3/8 | 616 | 100 |
| 16 | 400 | 16 | 595 | 457 | M27 | 62 | 2 | 35 | 469.9 | 539.8 | 1 1/8 | 410.5 | 54 |
| 18 | 450 | 16 | 635 | 505 | M30 | 67 | 2 | 38.1 | 533.4 | 577.9 | 1 1/4 | 461.8 | 59 |
| 14 | 350 | 12 | 535 | 400 | M27 | 56 | 2 | 33.4 | 412.8 | 476.3 | 1 1/8 | 359.2 | 41 |
| 20 | 500 | 20 | 700 | 559 | M30 | 71 | 2 | 41.3 | 584.2 | 635 | 1 1/4 | 513.1 | 75 |
| Size in Inch | Size in mm | ISO Stud Size | RF Height | Outer Dia. | RF Dia. | Hole Size | PCD | No of Bolts | Bolt Size UNC | Flange Thickness | RF Stud Length | Weight in kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | A | C | E | B | ||||||||
| 1/2 | 15 | M20 | 7 | 135 | 34.9 | 7/8 | 88.9 | 4 | 3/4 | 30.2 | 120 | 3.2 |
| 3/4 | 20 | M20 | 7 | 140 | 42.9 | 7/8 | 95.2 | 4 | 3/4 | 31.8 | 125 | 3.7 |
| 1 | 25 | M24 | 7 | 160 | 50.8 | 1 | 108 | 4 | 7/8 | 35 | 140 | 5 |
| 1 1/4 | 32 | M27 | 7 | 185 | 63.5 | 1 1/8 | 130.2 | 4 | 1 | 38.1 | 150 | 7.8 |
| 1 1/2 | 40 | M30 | 7 | 205 | 73 | 1 1/4 | 146 | 4 | 1 1/8 | 44.5 | 170 | 10.5 |
| 2 | 50 | M27 | 7 | 235 | 92.1 | 1 1/8 | 171.4 | 8 | 1 | 50.9 | 180 | 18 |
| 2 1/2 | 65 | M30 | 7 | 265 | 104.8 | 1 1/4 | 196.8 | 8 | 1 1/8 | 57.2 | 195 | 25.5 |
| 3 | 80 | M33 | 7 | 305 | 127 | 1 3/8 | 228.6 | 8 | 1 1/4 | 66.7 | 220 | 39 |
| 4 | 100 | M39 | 7 | 355 | 157.2 | 1 5/8 | 273 | 8 | 1 1/2 | 76.2 | 255 | 61.5 |
| 5 | 125 | M45 | 7 | 420 | 185.7 | 1 7/8 | 323.8 | 8 | 1 3/4 | 92.1 | 300 | 102 |
| 6 | 150 | M52 | 7 | 485 | 215.9 | 2 1/8 | 368.3 | 8 | 2 | 108 | 345 | 157 |
| 8 | 200 | M52 | 7 | 550 | 269.9 | 2 1/8 | 438.2 | 12 | 2 | 127 | 380 | 241 |
| 10 | 250 | M64 | 7 | 675 | 323.8 | 2 5/8 | 539.8 | 12 | 2 1/2 | 165.1 | 490 | 470 |
| 12 | 300 | M72 | 7 | 760 | 381 | 2 7/8 | 619.1 | 12 | 2 3/4 | 184.2 | 540 | 575 |
| NPS Of SWRF | Outer Diameter | Diameter of RF | Minimum Thickness | Hub Diameter | Bore Diameter | Socket Depth | Bolt Circle Diameter | Bolt Holes Diameter | Flanges Bolt Number |
|---|---|---|---|---|---|---|---|---|---|
| (NPS) | (O) | (R) | (tf) | (X) | (B1) | (B2) | (D) | (W) | (I) |
| 1/2 | 90 | 34.9 | 9.6 | 30 | 22.2 | 15.8 | 10 | 60.3 | 15.9 |
| 3/4 | 100 | 42.9 | 11.2 | 38 | 27.7 | 20.9 | 11 | 69.9 | 15.9 |
| 1 | 110 | 50.8 | 12.7 | 49 | 34.5 | 26.6 | 13 | 79.4 | 15.9 |
| 1 1/4 | 115 | 63.5 | 14.3 | 59 | 43.2 | 35.1 | 14 | 88.9 | 15.9 |
| 1 1/2 | 125 | 73.0 | 15.9 | 65 | 49.5 | 40.9 | 16 | 98.4 | 15.9 |
| 2 | 150 | 92.1 | 17.5 | 78 | 61.9 | 52.5 | 17 | 120.7 | 19.1 |
| 2 1/2 | 180 | 104.8 | 20.7 | 90 | 74.6 | 62.7 | 19 | 139.7 | 19.1 |
| 3 | 190 | 127.0 | 22.3 | 108 | 90.7 | 77.9 | 21 | 152.4 | 19.1 |
| Size in MM | Inner Diameter | Outer Diameter | Center to Center | Wall Thickness | Width Of Web | Thickness Of Web | Hole Diameter |
|---|---|---|---|---|---|---|---|
| 15 | 16 | 45 | 60 | 3 | 38 | 2 | 15.875 |
| 20 | 21 | 54 | 70 | 3 | 38 | 2 | 15.875 |
| 25 | 27 | 64 | 80 | 3 | 38 | 2 | 15.875 |
| 32 | 42 | 73 | 90 | 6.4 | 38 | 4 | 15.875 |
| 40 | 48 | 83 | 100 | 6.4 | 38 | 4 | 15.875 |
| 50 | 61 | 102 | 120 | 6.4 | 51 | 4 | 19.05 |
| 65 | 73 | 107 | 140 | 6.4 | 51 | 4 | 19.05 |
| 80 | 89 | 133 | 150 | 6.4 | 64 | 4 | 19.05 |
| 90 | 102 | 159 | 175 | 9.7 | 64 | 5 | 19.05 |
| 100 | 114 | 172 | 190 | 9.7 | 64 | 5 | 19.05 |
| 130 | 141 | 194 | 215 | 9.7 | 76 | 5 | 22.225 |
| 150 | 168 | 219 | 240 | 12.7 | 76 | 7 | 22.225 |
| 200 | 219 | 276 | 300 | 12.7 | 76 | 10 | 22.225 |
| 250 | 273 | 337 | 360 | 15.7 | 102 | 12 | 25.4 |
| 300 | 324 | 406 | 430 | 19.1 | 102 | 15 | 25.4 |
| 350 | 356 | 448 | 475 | 19.1 | 108 | 15 | 28.575 |
| 400 | 406 | 511 | 540 | 22.4 | 108 | 17 | 28.575 |
| 450 | 457 | 546 | 580 | 25.4 | 114 | 20 | 31.75 |
| 500 | 508 | 603 | 635 | 28.4 | 121 | 22 | 31.75 |
| 600 | 610 | 714 | 750 | 31.8 | 140 | 24 | 34.925 |
| Flange | Tolerance Table | |
|---|---|---|
| D | Inside Diameter (I.D.) |
|
| K | Length of hub |
|
| B | Diameter of contact face |
|
| A | O.D. (Outside Diameter) |
|
| J | Diameter of hub at base |
|
| P | Drilling |
|
| Eccentricity of bolt circle with respect to facing |
|
|
| H | Diameter of hub at point of welding |
|
| C | Thickness |
|
| ASME/ ANSI B16.5 | Pressure Rating | ||||||
|---|---|---|---|---|---|---|---|
| Temperature °F | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
| -20 to 100 | 275 | 720 | 960 | 1440 | 2160 | 3600 | 6000 |
| 200 | 230 | 600 | 800 | 1200 | 1800 | 3000 | 5000 |
| 300 | 205 | 540 | 720 | 1080 | 1620 | 2700 | 4500 |
| 400 | 190 | 495 | 660 | 995 | 1490 | 2485 | 4140 |
| 500 | 170 | 465 | 620 | 930 | 1395 | 2330 | 3880 |
| 600 | 140 | 435 | 580 | 875 | 1310 | 2185 | 3640 |
| 650 | 125 | 430 | 575 | 860 | 1290 | 2150 | 3580 |
| 700 | 110 | 425 | 565 | 850 | 1275 | 2125 | 3540 |
| 750 | 95 | 415 | 555 | 830 | 1245 | 2075 | 3460 |
| 800 | 80 | 405 | 540 | 805 | 1210 | 2015 | 3360 |
| 850 | 65 | 395 | 530 | 790 | 1190 | 1980 | 3300 |
| 900 | 50 | 390 | 520 | 780 | 1165 | 1945 | 3240 |
| 950 | 35 | 380 | 510 | 765 | 1145 | 1910 | 3180 |
| 1000 | 20 | 320 | 430 | 640 | 965 | 1605 | 2675 |
| 1050 | 20 | 310 | 410 | 615 | 925 | 1545 | 2570 |
| 1100 | 20 | 255 | 345 | 515 | 770 | 1285 | 2145 |
| 1150 | 20 | 200 | 265 | 400 | 595 | 995 | 1655 |
| 1200 | 20 | 155 | 205 | 310 | 465 | 770 | 1285 |
| 1250 | 20 | 115 | 150 | 225 | 340 | 565 | 945 |
| 1300 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
| 1350 | 20 | 60 | 80 | 125 | 185 | 310 | 515 |
| 1400 | 20 | 50 | 65 | 95 | 145 | 240 | 400 |
| 1450 | 15 | 35 | 45 | 70 | 105 | 170 | 285 |
| 1500 | 10 | 25 | 35 | 55 | 80 | 135 | 230 |