We design and supply superior quality steel pipes
for various water, air and gas transport applications.
Made of high quality material, these are high in
performance and have found various uses in different
industrial applications. These pipelines are meant for
the movement of water, oil & natural gas at a very high
pressure. Buried high pressure oil and gas pipelines are
tested for strength by pressurizing them to at least
125% of their maximum operating pressure (MAOP).
Since many long distance transmission pipelines are
designed to have a steel hoop stress of 80% of specified
minimum yield (SMYS) at MAOP, this means that the steel
is stressed to SMYS and above during the testing. Leak
testing is performed by balancing changes in the
measured pressure in the test section against the
theoretical pressure changes calculated from changes in
the measured temperature of the test section.
For Water, Gas and
Air Pipeline conforming to IS: 1239
N.B.
&Series
Outside Diameter
Wall thickness
Nominal Mass of
Galvanized Steel Tubes
Socket
Plain
end
Screwed
& Socketed
mm
inch
Min. mm
Max. mm
mm
SWG
Kg
/mtrs.
mtrs
/tonne
Kg/ Mtrs
Mtrs
/tonne
No.of Pipes per bundle
Min. Outer dia. mm
Min. Length mm
15 L
M
H
1/2
1/2
1/2
21.0
21.0
21.0
21.4
21.8
21.8
2.00
2.60
3.20
14
12
10
0.947
1.210
1.440
1056
826
694
0.956
1.220
1.450
1046
820
690
165
132
110
27.0
37.0
20 L
M
H
3/4
3/4
3 / 4
26.4
26.5
26.5
26.9
27.3
27.3
2.30
2.60
3.20
13
12
10
1.380
1.560
1.870
725
641
535
1.390
1.570
1.880
719
637
532
112
98
84
32.5
39.0
25 L
M
H
1
1
1
33.2
33.3
33.3
33.8
34.2
34.2
2.60
3.20
4.00
12
10
8
1.980
2.410
2.930
505
415 341
2.000
2.430
2.950
500
412 339
80
65
55
39.5
46.0
32 L
M
H
1 ¼
1 ¼
1 ¼
41.9
42.0
42.0
42.5
42.9
42.9
2.60
3.20
4.00
12
10
8
2.540
3.100
3.790
394
323 264
2.570
3.130
3.820
389
319
262
60
51
42
49.0
51.0
40 L
M
H
1 ½
1 ½
1 ½
47.8
47.9
47.9
48.4
48.8
48.8
2.90
3.20
4.00
11
10
8
3.230
3.560
4.370
310
281
229
3.270
3.600
4.410
306
278
227
48
45
36
56.0
51.0
50 L
M
H
2
2
2
59.6
39.7
59.7
60.2
60.8
60.8
2.90
3.60
4.50
11
9
7
4.080
5.030
6.190
245
199
162
4.150
5.100
6.260
241
196
160
39
30
27
68.0
60.0
65L
M
H
2 ½
2 ½
2 1/2
75.2
75.3
75.3
76.0
76.6
76.6
3.20
3.60
4.50
10
9
7
5.710
6.410
7.930
175
156
126
5.830
6.540
8.050
172
153
124
27
24
20
84.0
69.0
80 L
M
H
3
3
3
87.9
88.0
88.0
88.7
89.5
89.5
3.20
4.00
4.80
10
8
6
6.720
8.360
9.900
149
120
101
6.890
8.530
10.400
145
117
96
23
19
16
98.0
75.0
100 L
M
H
4
4
4
113.0
113.1
113.0
113.9
115.0
115.0
3.60
4.50
5.40
9
7
5
9.750
12.200
14.500
103
82
69
10.000
12.500
14.800
100
80
68
16
13
11
124.0
87.0
125 M
H
5
5
138.5
138.5
140.8
140.8
4.80 5.40
6
5
15.900 17.900
63
56
16.400
18.400
61 54
10
9
151.0
96.0
150M
H
6
6
163.9
163.9
166.5
166.5
4.80
5.40
6
5
18.900
21.300
53
47
19,500
21,900
51
46
8
7
178.0
96.0
L=Light, M = Medium, H=
Heavy
Tolerances
a) Outside Diameter Maximum
Deviation Upto & including
21.3mm #9; Above 21.3mm
Light Tubes+ Not limited -8%
Medium and+ Not limited
Heavy Tubes -10%
Weight
Single tube +10% (Light
series)
Single tube (Medium& Heavy
series) ± 10%
For Quality per Load of 10
tonnes minimum (Light
series) ± 5%
For Quantity per Load of 10
tonnes minimum (Medium &
heavy series) ± 7.5%
Length
4 to 7 meters unless
otherwise specified
For water steel pipes and sewage
conforming to IS: 3589/2001
Outside Diameter OD
Nominal Bore
Wall Thickness
Calculated Weight (Plain
end)
mm
mm
mm
Kg./ mtr.
Mtrs./tonne approx.
168.3
150
2.6
10.6
94
3.2
12.0
83
4.0
16.2
62
4.5
18.2
55
219.1
200
2.6
13.9
72
3.6
19.1
52
4.5
23.8
42
6.3
33.1
30
273.0
250
3.6
23.9
42
4.0
26.5
38
5.0
33.0
30
6.3
41.1
24
323.9
300
4.0
31.8
31
4.5
35.4
28
5.6
44.0
23
7.1
55.5
18
355.6
350
4.0
34.7
29
5.0
43.2
23
5.6
48.3
21
8.0
68.6
15
Tolerances
Outer Dia
± 0.75%
Thickness
± 10%
Length
4 to 7 meter
Notes
Thickness as stated above
are commonly used. However,
pipes of other thickness can
also be manufactured and
supplied to meet customers'
requirement. Pipes can be
supplied in grades FE-330,
FE-410 and FE-450.
