Socket weld flanges are the key element when talking about pipelines, making sure that there is no leakage and providing a smooth and strong connection between the pipe and valve. They could be manufactured with the purpose of being fit onto the pipe directly and, therefore, raise both the sturdiness and integrity of the joint. With different sizes and weight classifications to accommodate different applications, sections and pipe sizes these flanges come in many variants. Another feature that they have is their mechanical properties which help to offer the reliability and durability that is required even in the most intense industrial settings. On our website, you will find a detailed chart or a table in PDF format, which includes the mechanical properties, weights, dimensions, and sizes of socket weld flanges. An efficient piping system depends on a variety of factors, including selecting the proper socket weld flanges. Providing them with the right, updated information through the website will help users make wise decisions when choosing the right socket weld flanges for their unique needs.
| Nominal size | Outside Dia of Flange (D) | Thick of Flange (B) | Dia of Raised Face (G) | Dia of Hub at Base (A) | Length thru Hub (H) | Dia of Bore (ID) | Depth of Socket (F) | No of Holes | Dia of Holes (L) | Dia of Bolts | Dia of Bolt Circle (K) | Approx Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 88.9 | 11.2 | 35.1 | 30.2 | 15.7 | 22.4 | 9.7 | 4 | 15.7 | 1/2 | 60.5 | 0.5 |
| 3/4 | 98.6 | 12.7 | 42.9 | 38.1 | 15.7 | 27.7 | 11.2 | 4 | 15.7 | 1/2 | 69.9 | 1 |
| 1 | 108 | 14.2 | 50.8 | 49.3 | 17.5 | 34.5 | 12.7 | 4 | 15.7 | 1/2 | 79.2 | 1 |
| 1-1/4 | 117.3 | 15.7 | 63.5 | 58.7 | 20.6 | 43.2 | 14.2 | 4 | 15.7 | 1/2 | 88.9 | 1 |
| 1-1/2 | 127 | 17.5 | 73.2 | 65 | 22.4 | 49.5 | 15.7 | 4 | 15.7 | 1/2 | 98.6 | 1 |
| 2 | 152.4 | 19.1 | 91.9 | 77.7 | 25.4 | 62 | 17.5 | 4 | 19.1 | 5/8 | 120.7 | 2 |
| 2-1/2 | 177.8 | 22.4 | 104.6 | 90.4 | 28.4 | 74.7 | 19.1 | 4 | 19.1 | 5/8 | 139.7 | 3 |
| 3 | 190.5 | 23.9 | 127 | 108 | 30.2 | 90.7 | 20.6 | 4 | 19.1 | 5/8 | 152.4 | 4 |
| 3-1/2 | 215.9 | 23.9 | 139.7 | 122.2 | 31.8 | 103.4 | - | 8 | 19.1 | 5/8 | 177.8 | 5 |
| 4 | 228.6 | 23.9 | 157.2 | 134.9 | 33.3 | 116.1 | - | 8 | 19.1 | 5/8 | 190.5 | 6 |
| 5 | 254 | 23.9 | 185.7 | 163.6 | 36.6 | 143.8 | - | 8 | 22.4 | 3/4 | 215.9 | 7 |
| 6 | 279.4 | 25.4 | 215.9 | 192 | 39.6 | 170.7 | - | 8 | 22.4 | 3/4 | 241.3 | 9 |
| 8 | 342.9 | 28.4 | 269.7 | 246.1 | 44.5 | 221.5 | - | 8 | 22.4 | 3/4 | 298.5 | 14 |
| 10 | 406.4 | 30.2 | 323.9 | 304.8 | 49.3 | 276.4 | - | 12 | 25.4 | 7/8 | 362 | 20 |
| 12 | 482.6 | 31.8 | 381 | 365.3 | 55.6 | 327.2 | - | 12 | 25.4 | 7/8 | 431.8 | 29 |
| 14 | 533.4 | 35.1 | 412.8 | 400.1 | 57.2 | 359.2 | - | 12 | 28.4 | 1 | 476.3 | 41 |
| 16 | 596.9 | 36.6 | 469.9 | 457.2 | 63.5 | 410.5 | - | 16 | 28.4 | 1 | 539.8 | 44 |
| 18 | 635 | 39.6 | 533.4 | 505 | 68.3 | 461.8 | - | 16 | 31.8 | 1-1/8 | 577.9 | 59 |
| 20 | 698.5 | 42.9 | 584.2 | 558.8 | 73.2 | 513.1 | - | 20 | 31.8 | 1-1/8 | 635 | 75 |
| 24 | 812.8 | 47.8 | 692.2 | 663.4 | 82.6 | 616 | - | 20 | 35.1 | 1-1/4 | 749.3 | 100 |
| Nominal size | Outside Dia of Flange (D) | Thick of Flange (B) | Dia of Raised Face (G) | Dia of Hub at Base (A) | Length thru Hub (H) | Dia of Bore (ID) | Depth of Socket (F) | No of Holes | Dia of Holes (L) | Dia of Bolts | Dia of Bolt Circle (K) | Approx Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 95.3 | 14.2 | 35.1 | 38.1 | 22.4 | 22.4 | 9.7 | 4 | 15.7 | 1/2 | 66.5 | 1 |
| 3/4 | 117.3 | 15.7 | 42.9 | 47.8 | 25.4 | 27.7 | 11.2 | 4 | 19.1 | 5/8 | 82.6 | 1 |
| 1 | 124 | 17.5 | 50.8 | 53.8 | 26.9 | 34.5 | 12.7 | 4 | 19.1 | 5/8 | 88.9 | 1 |
| 1-1/4 | 133.4 | 19.1 | 63.5 | 63.5 | 26.9 | 43.2 | 14.2 | 4 | 19.1 | 5/8 | 98.6 | 2 |
| 1-1/2 | 155.4 | 20.6 | 73.2 | 69.9 | 30.2 | 49.5 | 15.7 | 4 | 22.4 | 3/4 | 114.3 | 3 |
| 2 | 165.1 | 22.4 | 91.9 | 84.1 | 33.3 | 62 | 17.5 | 8 | 19.1 | 5/8 | 127 | 3 |
| 2-1/2 | 190.5 | 25.4 | 104.6 | 100.1 | 38.1 | 74.7 | 19.1 | 8 | 22.4 | 3/4 | 149.4 | 5 |
| 3 | 209.6 | 28.4 | 127 | 117.3 | 42.9 | 90.7 | 20.6 | 8 | 22.4 | 3/4 | 168.1 | 6 |
| 3-1/2 | 228.6 | 30.2 | 139.7 | 133.4 | 44.5 | 103.4 | - | 8 | 22.4 | 3/4 | 184.2 | 8 |
| 4 | 254 | 31.8 | 157.2 | 146.1 | 47.8 | 116.1 | - | 8 | 22.4 | 3/4 | 200.2 | 10 |
| 5 | 279.4 | 35.1 | 185.7 | 177.8 | 50.8 | 143.8 | - | 8 | 22.4 | 3/4 | 235 | 13 |
| 6 | 317.5 | 36.6 | 215.9 | 206.2 | 52.3 | 170.7 | - | 12 | 22.4 | 3/4 | 269.7 | 18 |
| 8 | 381 | 41.1 | 269.7 | 260.4 | 62 | 221.5 | - | 12 | 25.4 | 7/8 | 330.2 | 26 |
| 10 | 444.5 | 47.8 | 323.9 | 320.5 | 66.5 | 276.4 | - | 16 | 28.4 | 1 | 387.4 | 37 |
| 12 | 520.7 | 50.8 | 381 | 374.7 | 73.2 | 327.2 | - | 16 | 31.8 | 1-1/8 | 450.9 | 52 |
| 14 | 584.2 | 53.8 | 412.8 | 425.5 | 76.2 | 359.2 | - | 16 | 31.8 | 1-1/8 | 514.4 | 75 |
| 16 | 647.7 | 57.2 | 469.9 | 482.6 | 82.6 | 410.5 | - | 20 | 35.1 | 1-1/4 | 571.5 | 86 |
| 18 | 711.2 | 60.5 | 533.4 | 533.4 | 88.9 | 461.8 | - | 24 | 35.1 | 1-1/4 | 628.7 | 113 |
| 20 | 774.7 | 63.5 | 584.2 | 587.2 | 95.3 | 513.1 | - | 24 | 35.1 | 1-1/4 | 685.8 | 143 |
| 24 | 914.4 | 69.9 | 692.2 | 701.5 | 106.4 | 616 | - | 24 | 41.1 | 1-1/2 | 812.8 | 215 |
| Nominal size | Outside Dia of Flange (D) | Thick of Flange (B) | Dia of Raised Face (G) | Dia of Hub at Base (A) | Length thru Hub (H) | Dia of Bore (ID) | Depth of Socket (F) | No of Holes | Dia of Holes (L) | Dia of Bolts | Dia of Bolt Circle (K) | Approx Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 95.3 | 14.2 | 35.1 | 38.1 | 22.4 | 22.4 | 9.7 | 4 | 15.7 | 1/2 | 66.5 | 1 |
| 3/4 | 117.3 | 15.7 | 42.9 | 47.8 | 25.4 | 27.7 | 11.2 | 4 | 19.1 | 5/8 | 82.6 | 1 |
| 1 | 124 | 17.5 | 50.8 | 53.8 | 26.9 | 34.5 | 12.7 | 4 | 19.1 | 5/8 | 88.9 | 2 |
| 1-1/4 | 133.4 | 20.6 | 63.5 | 63.5 | 28.4 | 43.2 | 14.2 | 4 | 19.1 | 5/8 | 98.6 | 2 |
| 1-1/2 | 155.4 | 22.4 | 73.2 | 69.9 | 31.8 | 49.5 | 15.7 | 4 | 22.4 | 3/4 | 114.3 | 3 |
| 2 | 165.1 | 25.4 | 91.9 | 84.1 | 36.6 | 62 | 17.5 | 8 | 19.1 | 5/8 | 127 | 4 |
| 2-1/2 | 190.5 | 28.4 | 104.6 | 100.1 | 41.1 | 74.7 | 19.1 | 8 | 22.4 | 3/4 | 149.4 | 6 |
| 3 | 209.6 | 31.8 | 127 | 117.3 | 46 | 90.7 | 20.6 | 8 | 22.4 | 3/4 | 168.1 | 7 |
| 3-1/2 | 228.6 | 35.1 | 139.7 | 133.4 | 49.3 | 103.4 | - | 8 | 25.4 | 7/8 | 184.2 | 10 |
| 4 | 273.1 | 38.1 | 157.2 | 152.4 | 53.8 | 116.1 | - | 8 | 25.4 | 7/8 | 215.9 | 17 |
| 5 | 330.2 | 44.5 | 185.7 | 189 | 60.5 | 143.8 | - | 8 | 28.4 | 1 | 266.7 | 29 |
| 6 | 355.6 | 47.8 | 215.9 | 222.3 | 66.5 | 170.7 | - | 12 | 28.4 | 1 | 292.1 | 36 |
| 8 | 419.1 | 55.6 | 269.7 | 273.1 | 76.2 | 221.5 | - | 12 | 31.8 | 1-1/8 | 349.3 | 52 |
| 10 | 508 | 63.5 | 323.9 | 342.9 | 85.9 | 276.4 | - | 16 | 35.1 | 1-1/4 | 431.8 | 77 |
| 12 | 558.8 | 66.5 | 381 | 400.1 | 91.9 | 327.2 | - | 20 | 35.1 | 1-1/4 | 489 | 91 |
| 14 | 603.3 | 69.9 | 412.8 | 431.8 | 93.7 | 359.2 | - | 20 | 38.1 | 1-3/8 | 527.1 | 104 |
| 16 | 685.8 | 76.2 | 469.9 | 495.3 | 106.4 | 410.5 | - | 20 | 41.1 | 1-1/2 | 603.3 | 150 |
| 18 | 743 | 82.6 | 533.4 | 546.1 | 117.3 | 461.8 | - | 20 | 44.5 | 1-5/8 | 654.1 | 181 |
| 20 | 812.8 | 88.9 | 584.2 | 609.6 | 127 | 513.1 | - | 24 | 44.5 | 1-5/8 | 723.9 | 231 |
| 24 | 939.8 | 101.6 | 692.2 | 717.6 | 139.7 | 616 | - | 24 | 50.8 | 1-7/8 | 838.2 | 331 |
| Nominal size | Outside Dia of Flange (D) | Thick of Flange (B) | Dia of Raised Face (G) | Dia of Hub at Base (A) | Length thru Hub (H) | Dia of Bore (ID) | Depth of Socket (F) | No of Holes | Dia of Holes (L) | Dia of Bolts | Dia of Bolt Circle (K) | Approx Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 120.7 | 22.4 | 35.1 | 38.1 | 31.8 | 22.4 | 9.7 | 4 | 22.4 | 3/4 | 82.6 | 2 |
| 3/4 | 130 | 25.4 | 42.9 | 44.5 | 35.1 | 27.7 | 11.2 | 4 | 22.4 | 3/4 | 88.9 | 2 |
| 1 | 149.4 | 28.4 | 50.8 | 52.3 | 41.1 | 34.5 | 12.7 | 4 | 25.4 | 7/8 | 101.6 | 4 |
| 1-1/4 | 158.8 | 28.4 | 63.5 | 63.5 | 41.1 | 43.2 | 14.2 | 4 | 25.4 | 7/8 | 111.3 | 4 |
| 1-1/2 | 177.8 | 31.8 | 73.2 | 69.9 | 44.5 | 49.5 | 15.7 | 4 | 28.4 | 1 | 124 | 5 |
| 2 | 215.9 | 38.1 | 91.9 | 104.6 | 57.2 | 62 | 17.5 | 8 | 25.4 | 7/8 | 165.1 | 11 |
| 2-1/2 | 244.3 | 41.1 | 104.6 | 124 | 63.5 | 74.7 | 8 | 19.1 | 28.4 | 1 | 190.5 | 16 |
| 3 | 266.7 | 47.8 | 127 | 133.4 | 73.2 | - | - | 8 | 31.8 | 1-1/8 | 203.2 | 22 |
| 4 | 311.2 | 53.8 | 157.2 | 162.1 | 90.4 | - | - | 8 | 35.1 | 1-1/4 | 241.3 | 33 |
| 5 | 374.7 | 73.2 | 185.7 | 196.9 | 104.6 | - | - | 8 | 41.1 | 1-1/2 | 292.1 | 59 |
| 6 | 393.7 | 82.6 | 215.9 | 228.6 | 119.1 | - | - | 12 | 38.1 | 1-3/8 | 317.5 | 75 |
| 8 | 482.6 | 91.9 | 269.7 | 292.1 | 142.7 | - | - | 12 | 44.5 | 1-5/8 | 393.7 | 118 |
| 10 | 584.2 | 108 | 323.9 | 368.3 | 158.8 | - | - | 12 | 50.8 | 1-7/8 | 482.6 | 197 |
| 12 | 673.1 | 124 | 381 | 450.9 | 180.8 | - | - | 16 | 53.8 | 2 | 571.5 | 263 |
| 14 | 749.3 | 133.4 | 412.8 | 495.3 | - | - | - | 16 | 60.5 | 2-1/4 | 635 | - |
| 16 | 825.5 | 146.1 | 469.9 | 552.5 | - | - | - | 16 | 66.5 | 2-1/2 | 704.9 | - |
| 18 | 914.4 | 162.1 | 533.4 | 596.9 | - | - | - | 16 | 73.2 | 2-3/4 | 774.7 | - |
| 20 | 984.3 | 177.8 | 584.2 | 641.4 | - | - | - | 16 | 79.2 | 3 | 831.9 | - |
| 24 | 1168.4 | 203.2 | 692.2 | 762 | - | - | - | 16 | 91.9 | 3-1/2 | 990.6 | - |
| Physical Properties | Metric | Comments |
|---|---|---|
| Density | 0.190 - 9.01 g/cc | Average value: 7.79 g/cc Grade Count:1432 |
| Porosity | 0.000 - 5.00 % | Average value: 2.97 % Grade Count:15 |
| Particle Size | 0.000 - 300 µm | Average value: 37.9 µm Grade Count:88 |
| Permeability | 0.0150 - 1.00 | Average value: 0.509 Grade Count:4 |
| Thickness | 20.0 - 508 microns | Average value: 86.8 microns Grade Count:14 |
| Mechanical Properties | Metric | Comments |
| Hardness, Brinell | 80.0 - 600 | Average value: 251 Grade Count:564 |
| Hardness, Knoop | 97.0 - 662 | Average value: 301 Grade Count:276 |
| Hardness, Rockwell A | 51.1 - 58.0 | Average value: 54.0 Grade Count:8 |
| Hardness, Rockwell B | 37.0 - 130 | Average value: 86.2 Grade Count:503 |
| Hardness, Rockwell C | 10.0 - 71.0 | Average value: 39.6 Grade Count:447 |
| Hardness, Vickers | 82.0 - 1100 | Average value: 294 Grade Count:339 |
| Tensile Strength, Ultimate | 32.3 - 3100 MPa | Average value: 935 MPa Grade Count:1729 |
| Tensile Strength, Yield | 25.0 - 2500 MPa | Average value: 669 MPa Grade Count:1638 |
| Elongation at Break | 0.000 - 88.0 % | Average value: 26.5 % Grade Count:1583 |
| Elongation at Yield | 0.000 - 62.0 % | Average value: 22.7 % Grade Count:22 |
| Reduction of Area | 0.500 - 88.0 % | Average value: 49.3 % Grade Count:308 |
| Modulus of Elasticity | 2.36 - 310 GPa | Average value: 196 GPa Grade Count:1175 |
| Flexural Yield Strength | 58.0 - 938 MPa | Average value: 479 MPa Grade Count:4 |
| Compressive Yield Strength | 262 - 3000 MPa | Average value: 1080 MPa Grade Count:11 |
| Notched Tensile Strength | 710 - 2230 MPa | Average value: 1740 MPa Grade Count:30 |
| Bulk Modulus | 166 GPa | Average value: 166 GPa Grade Count:14 |
| Poissons Ratio | 0.120 - 0.380 | Average value: 0.282 Grade Count:310 |
| Fatigue Strength | 85.0 - 1070 MPa | Average value: 439 MPa Grade Count:54 |
| Fracture Toughness | 17.6 - 165 MPa-m½ | Average value: 90.9 MPa-m½ Grade Count:9 |
| Machinability | 18.0 - 65.0 % | Average value: 31.7 % Grade Count:126 |
| Shear Modulus | 62.1 - 86.5 GPa | Average value: 77.6 GPa Grade Count:324 |
| Shear Strength | 74.5 - 597 MPa | Average value: 358 MPa Grade Count:5 |
| Izod Impact | 16.3 - 208 J | Average value: 115 J Grade Count:140 |
| Izod Impact Unnotched | 13.6 - 149 J | Average value: 77.8 J Grade Count:13 |
| Charpy Impact | 0.500 - 404 J | Average value: 115 J Grade Count:253 |
| Charpy Impact, Unnotched | 7.46 - 294 J | Average value: 157 J Grade Count:9 |
| Charpy Impact Unnotched | 1.59 - 60.0 J/cm² | Average value: 22.0 J/cm² Grade Count:3 |
| Charpy Impact, Notched | 0.710 - 294 J/cm² | Average value: 137 J/cm² Grade Count:5 |
| Taber Abrasion, mg/1000 Cycles | 3.20 - 30.0 | Average value: 11.3 Grade Count:3 |
| Electrical Properties | Metric | Comments |
| Electrical Resistivity | 0.00000450 - 0.000145 ohm-cm | Average value: 0.0000729 ohm-cm Grade Count:962 |
| Magnetic Permeability | 1.00 - 3000 | Average value: 178 Grade Count:316 |
| Magnetic Coercive Force, Hc | 1.20 - 7.00 Oe | Average value: 2.40 Oe Grade Count:6 |
| Magnetic Saturation Flux Density, Bmax | 11900 - 17000 Gauss | Average value: 15000 Gauss Grade Count:6 |
| Magnetic Remanence, Br | 2500 - 8500 Gauss | Average value: 6000 Gauss Grade Count:6 |
| Curie Temperature | -115 - 732 °C | Average value: 266 °C Grade Count:14 |
| Thermal Properties | Metric | Comments |
| CTE, linear | 7.02 - 21.1 µm/m-°C | Average value: 15.4 µm/m-°C Grade Count:977 |
| Specific Heat Capacity | 0.200 - 0.850 J/g-°C | Average value: 0.478 J/g-°C Grade Count:934 |
| Thermal Conductivity | 10.0 - 34.3 W/m-K | Average value: 16.7 W/m-K Grade Count:567 |
| Melting Point | 1230 - 1530 °C | Average value: 1440 °C Grade Count:580 |
| Solidus | 1230 - 1480 °C | Average value: 1410 °C Grade Count:553 |
| Liquidus | 1360 - 1530 °C | Average value: 1460 °C Grade Count:553 |
| Maximum Service Temperature, Air | 100 - 1400 °C | Average value: 837 °C Grade Count:368 |
| Minimum Service Temperature, Air | -200 - -30.0 °C | Average value: -133 °C Grade Count:26 |
| Optical Properties | Metric | Comments |
| Emissivity (0-1) | 0.7 | Average value: 0.700 Grade Count:4 |
| Processing Properties | Metric | Comments |
| Processing Temperature | 382 - 863 °C | Average value: 767 °C Grade Count:4 |
| Annealing Temperature | 593 - 1200 °C | Average value: 977 °C Grade Count:31 |
| Hot-Working Temperature | 482 - 1290 °C | Average value: 960 °C Grade Count:13 |
Socket weld flanges represent the critical elements in the piping systems, providing the most secured joints for high-pressure applications. On our website you will find a comparison chart in PDF format which contains mechanical specifications, weight, dimensions, sizes and physical properties of socket weld flanges. As it is, this resource is an essential reference for engineers, technicians and those involved in the design and maintenance of pipes. Our diagram is providing you the critical factors from which measurements to be exact till what material to be chosen, on which you can select the right flanges to suit the specific needs of an application. Be it the installation of a new pipeline or updating of existing components our portal has the right information you need to help guide you in making the right decisions and optimize your pipework systems.