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BS 1387
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BS 1387 

 


BS 1387-1985 Steel Tubes and Tubulars Suitable for Screwing to BS 21 Pipe Threads

Nominal Pipe Size Wall Thickness  Outside Diameter Unit Weight of galvanized pipe (kg) Screw Thread
Max. Min. Plain End Screwed and Socketed
DN NPS L M H L M H L M H L M H L M H Threads Total length
15 1/2 2.0 2.6 3.2 21.4 21.7 21.7 21.0 21.1 21.1 0.99 1.27 1.50 1.00 1.28 1.51 14 11.4-15
20 3/4 2.3 2.6 3.2 26.9 27.2 27.2 26.4 26.6 26.6 1.44 1.63 1.94 1.45 1.64 1.95 14 12.7-16.3
25 1 2.6 3.2 4.0 33.8 34.2 34.2 33.2 33.4 33.4 2.06 2.50 3.03 2.08 2.52 3.05 11 14.5-19.1
32 1-1/4 2.6 3.2 4.0 42.5 42.9 42.9 41.9 42.1 42.1 2.64 3.22 3.92 2.67 3.25 3.95 11 16.8-21.4
40 1-1/2 2.9 3.2 4.0 48.4 48.8 48.8 47.8 48.0 48.0 3.35 3.70 4.51 3.39 3.74 4.55 11 16.8-21.4
50 2 2.9 3.6 4.5 60.2 60.8 60.8 59.6 59.8 59.8 4.23 5.21 6.36 4.30 5.28 6.44 11 21.1-25.7
65 2-1/2 3.2 3.6 4.5 76.0 76.6 76.6 75.2 75.4 75.4 5.90 6.65 8.15 6.03 6.77 8.28 11 23.2-30.2
80 3 3.2 4.0 5.0 88.7 89.5 89.5 87.9 88.1 88.1 6.94 8.64 10.58 7.11 8.81 10.78 11 26.3-33.3
100 4 3.6 4.5 5.4 113.9 114.9 114.9 113.0 113.3 - 10.06 12.59 14.88 10.32 12.90 15.18 11 32.3-39.3
125 5 - 5.0 5.4 - 140.6 140.6 - 138.7 - - 17.06 18.31 - 17.58 18.82 11 36.6-43.6
150 6 - 5.0 5.4 - 166.1 166.1 - 164.1 - - 20.25 21.79 - 20.87 22.40 11 36.6-43.6

 L=Light M=Medium H=Heavy


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