Buttweld Fittings
Brochure Downloads
Japanese Industrial Standard – JIS B2311-82.
The standard specifies steel butt-welding pipe fittings which are generally used for ordinary piping in JIS G3452, for steam, water, oil, gas, etc., at relatively low pressures.
Materials : The fittings to this standard are made from materials in accordance with JIS G3452.
Pressure Ratings : The fittings are free from leakage at hydrostatic pressure up to a maximum of 2.5 MPa.
Welding End Preparations : Bevel dimensions and tolerances conform to those shown in the diagram. Fittings with a basic thickness below 4 mm have plain unbeveled ends.
Details of Buttweld Fittings to JIS B2311-82 (SGP – All Sizes are Welded)
90° ELBOWS LONG RADIUS
| Nominal Pipe Sizemm | Outside DiameterODmm | SGP | A | Mass (kg)(approx.)90EL SGP | |
| Inside DiameterID | Wall ThicknessT | ||||
| 15 | 21.7 | 16.1 | 2.8 | 38.1 | 0.08 |
| 20 | 27.2 | 21.6 | 2.8 | 38.1 | 0.10 |
| 25 | 34.0 | 27.6 | 3.2 | 38.1 | 0.15 |
| 32 | 42.7 | 35.7 | 3.5 | 47.6 | 0.25 |
| 40 | 48.6 | 41.6 | 3.5 | 57.2 | 0.35 |
| 50 | 60.5 | 52.9 | 3.8 | 76.2 | 0.63 |
| 65 | 76.3 | 67.9 | 4.2 | 95.3 | 1.12 |
| 80 | 89.1 | 80.7 | 4.2 | 114.3 | 1.58 |
| 90 | 101.6 | 93.2 | 4.2 | 133.4 | 2.11 |
| 100 | 114.3 | 105.3 | 4.5 | 152.4 | 2.91 |
| 125 | 139.8 | 130.8 | 4.5 | 190.5 | 4.49 |
| 150 | 165.2 | 155.2 | 5.0 | 228.6 | 7.09 |
| 200 | 216.3 | 204.7 | 5.8 | 304.8 | 14.40 |
| *200 | 219.1 | 207.5 | 5.8 | 304.8 | 14.40 |
| 250 | 267.4 | 254.2 | 6.6 | 381.0 | 25.40 |
| *250 | 273.0 | 259.8 | 6.6 | 381.0 | 25.40 |
| 300 | 318.5 | 304.7 | 6.9 | 457.2 | 38.10 |
| *300 | 323.8 | 310.0 | 6.9 | 457.2 | 38.10 |
| 350 | 355.6 | 339.8 | 7.9 | 533.4 | 56.70 |
| 400 | 406.4 | 390.6 | 7.9 | 609.6 | 74.30 |
| 450 | 457.2 | 441.4 | 7.9 | 685.8 | 94.20 |
| 500 | 508.0 | 492.2 | 7.9 | 762.0 | 117.00 |
| 600 | 609.6 | – | – | 914.4 | – |
90° ELBOWS SHORT RADIUS
| Nominal Pipe Sizemm | Outside DiameterODmm | SGP | A | Mass (kg)(approx.)90ES – SGP | |
| Inside DiameterID | Wall ThicknessT | ||||
| 25 | 34.0 | 27.6 | 3.2 | 25.4 | 0.10 |
| 32 | 42.7 | 35.7 | 3.5 | 31.8 | 0.17 |
| 40 | 48.6 | 41.6 | 3.5 | 38.1 | 0.23 |
| 50 | 60.5 | 52.9 | 3.8 | 50.8 | 0.42 |
| 65 | 76.3 | 67.9 | 4.2 | 63.5 | 0.74 |
| 80 | 89.1 | 80.7 | 4.2 | 76.2 | 1.05 |
| 90 | 101.6 | 93.2 | 4.2 | 88.9 | 1.41 |
| 100 | 114.3 | 105.3 | 4.5 | 101.6 | 1.94 |
| 125 | 139.8 | 130.8 | 4.5 | 127.0 | 2.99 |
| 150 | 165.2 | 155.2 | 5.0 | 152.14 | 4.73 |
| 200 | 216.3 | 204.7 | 5.8 | 203.2 | 9.61 |
| *200 | 219.1 | 207.5 | 5.8 | 203.2 | 9.61 |
| 250 | 267.4 | 254.2 | 6.6 | 254.0 | 16.90 |
| *250 | 273.0 | 259.8 | 6.6 | 254.0 | 19.60 |
| 300 | 318.5 | 304.7 | 6.9 | 304.8 | 25.40 |
| *300 | 323.8 | 310.0 | 6.9 | 304.8 | 25.40 |
| 350 | 355.6 | 339.8 | 7.9 | 355.6 | 37.80 |
| 400 | 406.4 | 390.6 | 7.9 | 406.4 | – |
45° ELBOWS LONG RADIUS
| Nominal Pipe Sizemm | Outside DiameterODmm | SGP | A | Mass (kg)(approx.)45EL – SGP | ||
| Inside DiameterID | Wall ThicknessT | B | ||||
| 15 | 21.7 | 16.1 | 2.8 | 38.1 | 15.8 | 0.04 |
| 20 | 27.2 | 21.6 | 2.8 | 38.1 | 15.8 | 0.05 |
| 25 | 34.0 | 27.6 | 3.2 | 38.1 | 15.8 | 0.07 |
| 32 | 42.7 | 35.7 | 3.5 | 47.6 | 19.7 | 0.13 |
| 40 | 48.6 | 41.6 | 3.5 | 57.2 | 23.7 | 0.18 |
| 50 | 60.5 | 52.9 | 3.8 | 76.2 | 31.6 | 0.32 |
| 65 | 76.3 | 67.9 | 4.2 | 95.3 | 39.5 | 0.56 |
| 80 | 89.1 | 80.7 | 4.2 | 114.3 | 47.3 | 0.79 |
| 90 | 101.6 | 93.2 | 4.2 | 133.4 | 55.3 | 1.06 |
| 100 | 114.3 | 105.3 | 4.5 | 152.4 | 63.1 | 1.46 |
| 125 | 139.8 | 130.8 | 4.5 | 190.5 | 78.9 | 2.25 |
| 150 | 165.2 | 155.2 | 5.0 | 228.6 | 94.7 | 3.54 |
| 200 | 216.3 | 204.7 | 5.8 | 304.8 | 126.2 | 7.20 |
| *200 | 219.1 | 207.5 | 5.8 | 304.8 | 126.2 | 7.20 |
| 250 | 267.4 | 254.2 | 6.6 | 381.0 | 157.8 | 12.70 |
| *250 | 273.0 | 259.8 | 6.6 | 381.0 | 157.8 | 12.70 |
| 300 | 318.5 | 304.7 | 6.9 | 457.2 | 189.4 | 19.00 |
| *300 | 323.8 | 310.0 | 6.9 | 457.2 | 189.4 | 19.00 |
| 350 | 355.6 | 339.8 | 7.9 | 533.4 | 220.9 | 28.40 |
| 400 | 406.4 | 390.6 | 7.9 | 609.6 | 252.5 | 37.10 |
| 450 | 457.2 | 441.4 | 7.9 | 685.8 | 284.1 | 47.10 |
| 500 | 508.0 | 492.2 | 7.9 | 762.0 | 315.6 | 58.30 |
| 600 | 609.6 | – | – | 914.4 | 378.7 | – |
WELDING REDUCERS CONCENTRIC AND ECCENTRIC
| Nominal Pipe Sizemm | Outside DiameterODmm | LengthLmm | Mass(approx.)SGP – kg | Nominal Pipe Sizemm | Outside DiameterODmm | LengthLmm | Mass(approx.)SGP – kg | |
| 20 x 15 | 27.2 x 21.7 | 38.1 | 0.057 | 125 x 65 | 139.8 x 76.3 | 127.0 | 1.50 | |
| 25 x 20 | 34.0 x 27.2 | 50.8 | 0.110 | 150 x 125 | 165.2 x 139.8 | 139.7 | 2.55 | |
| 25 x 15 | 34.0 x 21.7 | 50.8 | 0.100 | 150 x 100 | 165.2 x 114.3 | 139.7 | 2.36 | |
| 32 x 25 | 42.7 34.0 | 50.8 | 0.154 | 150 x 90 | 165.2 x 101.6 | 139.7 | 2.27 | |
| 32 x 20 | 42.7 x 27.2 | 50.8 | 0.140 | 150 x 80 | 165.2 x 89.1 | 139.7 | 2.18 | |
| 32 x 15 | 42.7 x 21.7 | 50.8 | 0.129 | 150 x 65 | 165.2 x 76.3 | 139.7 | 2.09 | |
| 40 x 32 | 48.6 x 42.7 | 63.5 | 0.232 | 200 x 150 | 219.1 x 165.2 | 152.4 | 4.17 | |
| 40 x 25 | 48.6 x 34.0 | 63.5 | 0.209 | 200 x 125 | 219.1 x 139.8 | 152.4 | 3.87 | |
| 40 x 20 | 48.6 x 27.2 | 63.5 | 0.191 | 200 x 100 | 219.1 x 114.3 | 152.4 | 3.67 | |
| 50 x 40 | 60.5 x 48.6 | 76.2 | 0.364 | 200 x 90 | 219.1 x 101.6 | 152.4 | 3.57 | |
| 50 x 32 | 60.5 x 42.7 | 76.2 | 0.344 | 250 x 200 | 273.0 x 219.1 | 177.8 | 6.87 | |
| 50 x 25 | 60.5 x 34.0 | 76.2 | 0.315 | 250 x 150 | 273.0 x 165.2 | 177.8 | 6.32 | |
| 50 x 20 | 60.5 x 27.2 | 76.2 | 0.293 | 250 x 150 | 273.0 x 139.8 | 177.8 | 6.06 | |
| 65 x 50 | 76.3 x 60.5 | 88.9 | 0.594 | 300 x 250 | 323.8 x 273.0 | 203.2 | 9.97 | |
| 65 x 40 | 76.3 x 48.6 | 88.9 | 0.543 | 300 x 200 | 232.8 x 219.1 | 203.2 | 9.29 | |
| 65 x 32 | 76.3 x 42.7 | 88.9 | 0.518 | 300 x 150 | 323.8 x 165.2 | 203.2 | 8.69 | |
| 65 x 25 | 76.3 x 34.0 | 88.9 | 0.482 | 300 x 125 | 323.8 x 139.8 | 203.2 | 8.39 | |
| 80 x 65 | 89.1 x 76.3 | 88.9 | 0.725 | 350 x 300 | 355.6 x 323.8 | 330.2 | 21.20 | |
| 80 x 50 | 89.1 x 60.5 | 88.9 | 0.658 | 350 x 250 | 355.6 x 273.0 | 330.2 | 19.70 | |
| 80 x 40 | 89.1 x 48.6 | 88.9 | 0.611 | 350 x 200 | 355.6 x 219.1 | 330.2 | 18.30 | |
| 80 x 32 | 89.1 x 42.7 | 88.9 | 0.587 | 400 x 350 | 406.4 x 355.6 | 355.6 | 20.90 | |
| 90 x 80 | 101.6 x 89.1 | 101.6 | 0.961 | 400 x 300 | 406.4 x 323.8 | 355.6 | 19.80 | |
| 90 x 65 | 101.6 x 76.3 | 101.6 | 0.899 | 400 x 250 | 406.4 x 273.0 | 355.6 | 18.20 | |
| 90 x 50 | 101.6 x 60.5 | 101.6 | 0.826 | 450 x 400 | 457.2 x 406.4 | 381.0 | 26.30 | |
| 90 x 40 | 101.6 x 48.6 | 101.6 | 0.771 | 450 x 350 | 457.2 x 355.6 | 381.0 | 24.50 | |
| 100 x 90 | 114.3 x 101.6 | 101.6 | 1.170 | 450 x 300 | 457.2 x 323.8 | 381.0 | 23.30 | |
| 100 x 80 | 114.3 x 89.1 | 101.6 | 1.100 | 500 x 450 | 508.0 x 457.2 | 508.0 | 40.00 | |
| 100 x 65 | 114.3 x 76.3 | 101.6 | 1.040 | 500 x 400 | 508.0 x 406.4 | 508.0 | 37.60 | |
| 100 x 50 | 114.3 x 60.5 | 101.6 | 0.967 | 500 x 350 | 508.0 x 355.6 | 508.0 | 35.30 | |
| 125 x 100 | 139.8 x 114.3 | 127.0 | 1.740 | 600 x 500 | 609.6 x 508.0 | 508.0 | – | |
| 125 x 90 | 139.8 x 101.6 | 127.0 | 1.650 | 600 x 450 | 609.6 x 457.2 | 508.0 | – | |
| 125 x 80 | 139.8 x 89.1 | 127.0 | 1.580 |
TEES EQUAL AND UNEQUAL
| Nominal Pipe Sizemm | Outside DiameterODmm | SGP | A | B | Mass (kg)(approx.) | |
| Inside DiameterID | Wall ThicknessT | |||||
| 15 | 21.7 | 16.1 | 2.8 | 25.4 | 25.4 | 0.085 |
| 20 | 27.2 | 21.6 | 2.8 | 28.6 | 28.6 | 0.122 |
| 25 | 34.0 | 27.6 | 3.2 | 38.1 | 38.1 | 0.236 |
| 32 | 42.7 | 35.7 | 3.5 | 47.6 | 47.6 | 0.441 |
| 40 | 48.6 | 41.6 | 3.5 | 57.2 | 57.2 | 0.573 |
| 50 | 60.5 | 52.9 | 3.8 | 63.5 | 63.5 | 0.851 |
| 65 | 76.3 | 67.9 | 4.2 | 76.2 | 76.2 | 1.42 |
| 80 | 89.1 | 80.7 | 4.2 | 85.7 | 85.7 | 1.87 |
| 90 | 101.6 | 93.2 | 4.2 | 95.3 | 95.3 | 2.37 |
| 100 | 114.3 | 105.3 | 4.5 | 104.8 | 104.8 | 3.13 |
| 125 | 139.8 | 130.8 | 4.5 | 123.8 | 123.8 | 4.53 |
| 150 | 165.2 | 155.2 | 5.0 | 142.9 | 142.9 | 6.84 |
| 200 | 219.1 | 207.5 | 5.8 | 177.8 | 177.8 | 12.80 |
| 250 | 273.0 | 259.8 | 6.6 | 215.9 | 215.9 | 21.8 |
| 300 | 323.8 | 310.0 | 6.9 | 254.0 | 254.0 | 32.0 |
| 350 | 355.6 | 339.8 | 7.9 | 279.4 | 279.4 | 44.7 |
| 400 | 406.4 | 390.6 | 7.9 | 304.8 | 304.8 | 55.2 |
| 450 | 457.2 | 441.4 | 7.9 | 342.9 | 342.9 | 70.0 |
| 500 | 508.0 | 492.2 | 7.9 | 381.0 | 381.0 | 86.6 |
WELDING CAPS
| Nominal Pipe Sizemm | Outside DiameterODmm | SGP | E | Mass (kg)(approx.)SGP | |
| Inside DiameterID | Wall ThicknessT | ||||
| 50 | 60.5 | 52.9 | 3.8 | 38.1 | 0.228 |
| 65 | 76.3 | 67.9 | 4.2 | 38.1 | 0.339 |
| 80 | 89.1 | 80.7 | 4.2 | 50.8 | 0.507 |
| 90 | 101.6 | 93.2 | 4.2 | 63.5 | 0.706 |
| 100 | 114.3 | 105.3 | 4.5 | 63.5 | 0.877 |
| 125 | 139.8 | 130.8 | 4.5 | 76.2 | 1.29 |
| 150 | 165.2 | 155.2 | 5.0 | 88.9 | 1.99 |
| 200 | 219.1 | 207.5 | 5.8 | 101.6 | 3.61 |
| 250 | 273.0 | 259.8 | 6.6 | 127.0 | 6.33 |
| 300 | 323.8 | 310.0 | 6.9 | 152.4 | 9.43 |
| 350 | 355.6 | 339.8 | 7.9 | 165.1 | 13.2 |
| 400 | 406.4 | 390.6 | 7.9 | 177.8 | 16.6 |
| 450 | 457.2 | 441.4 | 7.9 | 203.2 | 21.2 |
| 500 | 508.0 | 492.2 | 7.9 | 228.6 | 26.4 |