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Steel Tubes according BS 1387
Dimensions and weights of steel tubes
according BSi - BS 1387:1985 Specification for screwed and socketed
steel tubes and tubulars and for plain end steel tubes suitable
for welding or for screwing to BS 21 pipe threads
Dimensions and weight of steel tubes
according the British Standard - BS 1387:1985 "Specification for
screwed and socketed steel tubes and tubulars and for plain end
steel tubes suitable for welding or for screwing to BS 21 pipe
threads" can be found in the table below:
| Nominal bore |
Outside diameter
|
Thickness
|
Mass
|
|
Light
|
Medium/
Heavy
|
Light
|
Medium
|
Heavy
|
Light
|
Medium
|
Heavy
|
|
in
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
kg/m
|
kg/m
|
kg/m
|
|
1/4
|
8
|
13.60
|
13.90
|
1.80
|
2.30
|
2.90
|
0.515
|
0.641
|
0.765
|
|
3/8
|
10
|
17.10
|
17.40
|
1.80
|
2.30
|
2.90
|
0.670
|
0.839
|
1.020
|
|
1/2
|
15
|
21.40
|
21.70
|
2.00
|
2.60
|
3.20
|
0.947
|
1.210
|
1.440
|
|
3/4
|
20
|
26.90
|
27.20
|
2.30
|
2.60
|
3.20
|
1.380
|
1.560
|
1.870
|
|
1
|
25
|
33.80
|
34.20
|
2.60
|
3.20
|
4.00
|
1.980
|
2.410
|
2.940
|
|
1 1/4
|
32
|
42.50
|
42.90
|
2.60
|
3.20
|
4.00
|
2.540
|
3.100
|
3.800
|
|
1 1/2
|
40
|
48.40
|
48.80
|
2.90
|
3.20
|
4.00
|
3.230
|
3.570
|
4.380
|
|
2
|
50
|
60.20
|
60.80
|
2.90
|
3.60
|
4.50
|
4.080
|
5.030
|
6.190
|
|
2 1/2
|
65
|
76.00
|
76.60
|
3.20
|
3.60
|
4.50
|
5.710
|
6.430
|
7.930
|
|
3
|
80
|
88.70
|
89.50
|
3.20
|
4.00
|
5.00
|
6.720
|
8.370
|
10.300
|
|
4
|
100
|
113.90
|
114.90
|
3.60
|
4.50
|
5.40
|
9.750
|
12.200
|
14.500
|
|
5
|
125
|
|
140.60
|
|
5.00
|
5.40
|
|
16.600
|
17.900
|
|
6
|
150
|
|
166.10
|
|
5.00
|
5.40
|
|
19.700
|
21.300
|
The standard is applicable to tubes
of nominal size DN8 to DN150 in light, medium and heavy thickness.
- The BS
1387:1985 specification for screwed and socket steel tubes
and for plain end steel tubes suitable for welding or for
screwing to BS 21 pipe threads.
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