Buttweld Fittings

Buttweld Fittings

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 SizemmOutside DiameterODmmSGPAMass (kg)(approx.)90EL SGP
Inside DiameterIDWall ThicknessT
1521.716.12.838.10.08
2027.221.62.838.10.10
2534.027.63.238.10.15
3242.735.73.547.60.25
4048.641.63.557.20.35
5060.552.93.876.20.63
6576.367.94.295.31.12
8089.180.74.2114.31.58
90101.693.24.2133.42.11
100114.3105.34.5152.42.91
125139.8130.84.5190.54.49
150165.2155.25.0228.67.09
200216.3204.75.8304.814.40
*200219.1207.55.8304.814.40
250267.4254.26.6381.025.40
*250273.0259.86.6381.025.40
300318.5304.76.9457.238.10
*300323.8310.06.9457.238.10
350355.6339.87.9533.456.70
400406.4390.67.9609.674.30
450457.2441.47.9685.894.20
500508.0492.27.9762.0117.00
600609.6914.4

90° ELBOWS SHORT RADIUS

Nominal Pipe SizemmOutside DiameterODmmSGPAMass (kg)(approx.)90ES – SGP
Inside DiameterIDWall ThicknessT
2534.027.63.225.40.10
3242.735.73.531.80.17
4048.641.63.538.10.23
5060.552.93.850.80.42
6576.367.94.263.50.74
8089.180.74.276.21.05
90101.693.24.288.91.41
100114.3105.34.5101.61.94
125139.8130.84.5127.02.99
150165.2155.25.0152.144.73
200216.3204.75.8203.29.61
*200219.1207.55.8203.29.61
250267.4254.26.6254.016.90
*250273.0259.86.6254.019.60
300318.5304.76.9304.825.40
*300323.8310.06.9304.825.40
350355.6339.87.9355.637.80
400406.4390.67.9406.4

45° ELBOWS LONG RADIUS

Nominal Pipe SizemmOutside DiameterODmmSGPA Mass (kg)(approx.)45EL – SGP
Inside DiameterIDWall ThicknessTB
1521.716.12.838.115.80.04
2027.221.62.838.115.80.05
2534.027.63.238.115.80.07
3242.735.73.547.619.70.13
4048.641.63.557.223.70.18
5060.552.93.876.231.60.32
6576.367.94.295.339.50.56
8089.180.74.2114.347.30.79
90101.693.24.2133.455.31.06
100114.3105.34.5152.463.11.46
125139.8130.84.5190.578.92.25
150165.2155.25.0228.694.73.54
200216.3204.75.8304.8126.27.20
*200219.1207.55.8304.8126.27.20
250267.4254.26.6381.0157.812.70
*250273.0259.86.6381.0157.812.70
300318.5304.76.9457.2189.419.00
*300323.8310.06.9457.2189.419.00
350355.6339.87.9533.4220.928.40
400406.4390.67.9609.6252.537.10
450457.2441.47.9685.8284.147.10
500508.0492.27.9762.0315.658.30
600609.6914.4378.7

WELDING REDUCERS CONCENTRIC AND ECCENTRIC

Nominal Pipe SizemmOutside DiameterODmmLengthLmmMass(approx.)SGP – kg Nominal Pipe Sizemm Outside DiameterODmmLengthLmm  Mass(approx.)SGP – kg
20 x 1527.2 x 21.7 38.10.057 125 x 65  139.8 x 76.3127.0 1.50 
25 x 2034.0 x 27.250.8 0.110 150 x 125 165.2 x 139.8 139.7 2.55 
25 x 1534.0 x 21.750.8 0.100 150 x 100 165.2 x 114.3 139.7 2.36 
32 x 2542.7 34.050.8 0.154 150 x 90 165.2 x 101.6 139.7 2.27 
32 x 2042.7 x 27.250.8 0.140 150 x 80 165.2 x 89.1 139.7 2.18 
32 x 1542.7 x 21.750.8 0.129 150 x 65 165.2 x 76.3 139.7 2.09 
40 x 3248.6 x 42.763.5 0.232 200 x 150 219.1 x 165.2 152.4 4.17 
40 x 2548.6 x 34.063.5 0.209 200 x 125 219.1 x 139.8 152.4 3.87 
40 x 2048.6 x 27.263.5 0.191 200 x 100 219.1 x 114.3 152.4 3.67 
50 x 4060.5 x 48.676.2 0.364 200 x 90 219.1 x 101.6 152.4 3.57 
50 x 3260.5 x 42.776.2 0.344 250 x 200 273.0 x 219.1 177.8 6.87 
50 x 2560.5 x 34.076.2 0.315 250 x 150 273.0 x 165.2 177.8 6.32 
50 x 2060.5 x 27.276.2 0.293 250 x 150 273.0 x 139.8 177.8 6.06 
65 x 5076.3 x 60.588.9 0.594 300 x 250 323.8 x 273.0 203.2 9.97 
65 x 4076.3 x 48.688.9 0.543 300 x 200 232.8 x 219.1 203.2 9.29 
65 x 3276.3 x 42.788.9 0.518 300 x 150 323.8 x 165.2 203.2 8.69 
65 x 2576.3 x 34.088.9 0.482 300 x 125 323.8 x 139.8203.2 8.39 
80 x 6589.1 x 76.388.9 0.725 350 x 300 355.6 x 323.8  330.2 21.20 
80 x 5089.1 x 60.588.9 0.658 350 x 250  355.6 x 273.0330.2 19.70 
80 x 4089.1 x 48.688.9 0.611 350 x 200 355.6 x 219.1 330.2 18.30 
80 x 3289.1 x 42.788.9 0.587 400 x 350  406.4 x 355.6355.6 20.90 
90 x 80101.6 x 89.1101.60.961 400 x 300406.4 x 323.8355.619.80
90 x 65101.6 x 76.3101.60.899 400 x 250406.4 x 273.0355.618.20
90 x 50101.6 x 60.5101.60.826 450 x 400457.2 x 406.4381.026.30
90 x 40101.6 x 48.6101.60.771 450 x 350457.2 x 355.6381.024.50
100 x 90114.3 x 101.6101.61.170 450 x 300457.2 x 323.8381.023.30
100 x 80114.3 x 89.1101.61.100 500 x 450508.0 x 457.2508.040.00
100 x 65114.3 x 76.3101.6 1.040 500 x 400 508.0 x 406.4 508.037.60 
100 x 50114.3 x 60.5101.60.967 500 x 350508.0 x 355.6508.035.30
125 x 100139.8 x 114.3127.01.740 600 x 500609.6 x 508.0508.0
125 x 90139.8 x 101.6127.01.650 600 x 450609.6 x 457.2508.0
125 x 80139.8 x 89.1127.01.580     

TEES EQUAL AND UNEQUAL

Nominal Pipe SizemmOutside DiameterODmmSGPABMass (kg)(approx.)
Inside DiameterIDWall ThicknessT
1521.716.12.825.425.40.085
2027.221.62.828.628.60.122
2534.027.63.238.138.10.236
3242.735.73.547.647.60.441
4048.641.63.557.257.20.573
5060.552.93.863.563.50.851
6576.367.94.276.276.21.42
8089.180.74.285.785.71.87
90101.693.24.295.395.32.37
100114.3105.34.5104.8104.83.13
125139.8130.84.5123.8123.84.53
150165.2155.25.0142.9142.96.84
200219.1207.55.8177.8177.812.80
250273.0259.86.6215.9215.921.8
300323.8310.06.9254.0254.032.0
350355.6339.87.9279.4279.444.7
400406.4390.67.9304.8304.855.2
450457.2441.47.9342.9342.970.0
500508.0492.27.9381.0381.086.6

WELDING CAPS

Nominal Pipe SizemmOutside DiameterODmmSGPEMass (kg)(approx.)SGP
Inside DiameterIDWall ThicknessT
5060.552.93.838.10.228
6576.367.94.238.10.339
8089.180.74.250.80.507
90101.693.24.263.50.706
100114.3105.34.563.50.877
125139.8130.84.576.21.29
150165.2155.25.088.91.99
200219.1207.55.8101.63.61
250273.0259.86.6127.06.33
300323.8310.06.9152.49.43
350355.6339.87.9165.113.2
400406.4390.67.9177.816.6
450457.2441.47.9203.221.2
500508.0492.27.9228.626.4