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Pipes
Technical Data of Black and Galvanized Pipes Specification IS: 1239 (Part - I) (Equivalent to BS: 1387-1985)
NB and
Series
|
Outside Diameter
|
Wall Thickness
|
Nominal Weight
|
Black Pipes
Plain End
|
Galvanized Pipes
Screwed and Socketed
|
mm
|
mm
|
mm
|
mm
|
SWG
|
kg/m
|
mts/ton
|
kg/m
|
mts/ton
|
15L
|
21.0
|
21.4
|
2.0
|
14
|
0.95
|
1052
|
0.96
|
1046
|
M
|
21.0
|
21.8
|
2.6
|
12
|
1.21
|
826
|
1.22
|
820
|
H
|
21.0
|
21.8
|
3.2
|
10
|
1.44
|
694
|
1.45
|
690
|
20L
|
26.4
|
26.9
|
2.3
|
13
|
1.38
|
725
|
1.39
|
719
|
M
|
26.5
|
27.3
|
2.6
|
12
|
1.56
|
641
|
1.57
|
637
|
H
|
26.5
|
27.3
|
3.2
|
10
|
1.87
|
535
|
1.88
|
532
|
25L
|
33.2
|
33.8
|
2.6
|
12
|
1.98
|
505
|
2.00
|
500
|
M
|
33.3
|
34.2
|
3.2
|
10
|
2.41
|
415
|
2.43
|
411.5
|
H
|
33.3
|
34.2
|
4.0
|
8
|
2.93
|
341
|
2.95
|
339
|
32L
|
41.9
|
42.5
|
2.6
|
12
|
2.54
|
394
|
2.57
|
389
|
M
|
42.0
|
42.9
|
3.2
|
10
|
3.10
|
322
|
3.13
|
319
|
H
|
42.0
|
42.9
|
4.0
|
8
|
3.79
|
264
|
3.82
|
262
|
40.L
|
47.8
|
48.4
|
2.9
|
11
|
3.23
|
310
|
3.27
|
306
|
M
|
47.8
|
48.8
|
3.2
|
10
|
3.56
|
281
|
3.60
|
278
|
H
|
47.9
|
48.8
|
4.0
|
8
|
4.37
|
229
|
4.41
|
227
|
50L
|
59.6
|
60.2
|
2.9
|
11
|
4.08
|
245
|
4.15
|
241
|
M
|
59.7
|
60.8
|
3.6
|
9
|
5.03
|
199
|
5.10
|
196
|
H
|
59.7
|
60.8
|
4.5
|
7
|
6.19
|
161
|
6.26
|
160
|
65L
|
75.2
|
76.0
|
3.2
|
10
|
5.71
|
175
|
5.83
|
171.5
|
M
|
75.3
|
76.6
|
3.6
|
9
|
6.42
|
156
|
6.54
|
153
|
H
|
75.3
|
76.6
|
4.5
|
7
|
7.93
|
126
|
8.05
|
124
|
80L
|
87.9
|
88.7
|
3.2
|
10
|
6.72
|
149
|
6.89
|
145
|
M
|
88.0
|
89.5
|
4.0
|
8
|
8.36
|
120
|
8.53
|
117
|
H
|
88.0
|
89.5
|
4.5
|
6
|
9.90
|
101
|
10.40
|
96
|
100L
|
113.0
|
113.9
|
3.6
|
9
|
9.75
|
102
|
10.00
|
100
|
M
|
113.1
|
115.0
|
4.5
|
7
|
12.20
|
82
|
12.50
|
80
|
H
|
113.1
|
115.0
|
5.4
|
5
|
14.50
|
69
|
14.80
|
67.5
|
125M
|
138.5
|
140.8
|
4.8
|
6
|
15.90
|
63
|
16.40
|
61
|
H
|
138.5
|
140.8
|
5.4
|
5
|
17.90
|
56
|
18.40
|
54
|
150M
|
163.9
|
166.5
|
4.8
|
6
|
18.90
|
53
|
19.50
|
51
|
H
|
163.9
|
166.5
|
5.4
|
5
|
21.30
|
47
|
21.90
|
46
|
Thickness and mass are applicable for black and galvanized steel tubes as per clause 8.1.1 of IS: 1239 (part-I) 1990
A Thickness
|
Tolerance
|
B Weight
|
Tolerance
|
Light Tube
|
+ not limited - 8%
|
Single tube (light series)
|
+10%-8%
|
Medium and Heavy tubes
|
+ no limited-10%
|
Single tube (Medium Heavy series)
|
+10%
|
For quantities per load of 10 tons minimum (Light series)
|
±5%
|
| For quantities per load of 10 tons minimum (Medium and Heavy Series) |
±7.5% |
Length Tolerance
Unless otherwise specified 4 to 7 mts. Can also supplied in fix length ± 5cm.
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