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PIPES

Technically a tube is used to transport fluids or gases. However, pipe and tube are often used interchangeably in steel lexicon, with a given label applied primarily as a matter of historical use.

Pipes are normally available like ERW, Galvanized and Seamless

ERW and Galvanised pipes are used for erection, drainage, water supply, structural and mechanical uses, pilings, handling of coal and other solids in pulverised and powdery conditions. Seamless and Alloy pipes, mainly used in high temperature service, e.g. design of boilers, super heaters and heat exchangers are supplied in mainly low, medium or high alloy grades according to ASTM; BE or DIN Specification.

ERW & GI PIPES

Specification for Mild Steel Tubes and Tubulars
Conforming to IS - 1289 (Part I) :1990
Nominal Bore (NB)
Class
Outside Diameter
Thickness
SWG
Mass of Black Tubes
Black Plain End
Calculated weights of Galvanized tubes
Galvanized S&S
mm
Inches
 
mm
mm
mm
 
Kg/m
Kg/m
Mtrs/Ton
Ft/Ton
Pes/Bdle
Kg/m
Kg/m
Mtrs/Ton
Ft/Ton
Pes/Bdle
15
(½")

L
M
H

21.40
21.80
21.80

21.00
21.00
21.00

2.00
2.60
3.20

14
12
10

0.947
1.21
1.44

0.956
1.22
1.45

1056
826
694

0.956
1.22
1.45

176
138
116

0.999
1.264
1.494

1.008
1.274
1.504

992
785
665

3255
2575
2182

165
131
111
20
(¾")

L
M
H

26.90
27.30
27.30

26.40
26.50
26.50

2.30
2.60
3.20

13
12
10

1.38
1.56
1.87

1.39
1.57
1.88

725
641
535

2379
2103
1755

121
107
89

1.441
1.622
1.923

1.451
1.632
1.933

689
613
517

2260
2011
1696

115
102
86
25
1"
L
M
H
33.80
34.20
34.20
33.20
33.30
33.30
2.60
3.20
4.00
12
10
8
1.98
2.41
2.93
2.00
2.43
2.95
505
415
341
1657
1362
1119
84
69
57
2.062
2.495
3.028
2.082
2.515
3.048
480
398
328
1575
1306
1076
80
66
65
32
1¼"
L
M
H
42.50
42.90
42.90
41.90
42.00
42.00
2.60
3.20
4.00
12
10
8
2.54
3.10
3.79
2.57
3.13
3.82
394
323
264
1293
1060
866
66
54
44
2.641
3.207
3.887
2.671
3.237
3.917
374
309
255
1227
1014
837
62
52
43
40
1½"
L
M
H
48.40
48.80
48.80
47.80
47.90
47.90
2.90
3.20
4.00
11
10
8
3.23
3.56
4.37
3.27
3.60
4.41
310
281
229
1017
922
751
52
47
38
3.358
3.681
4.485
3.398
3.721
4.525
294
269
221
965
883
725
49
45
37
50
2"
L
M
H

60.20
60.80
60.80

59.60
59.70
59.70
2.90
3.60
4.50
11
9
7
4.08
5.03
6.19
4.15
5.10
6.26
245
199
162
804
653
531
41
33
27
4.225
5.166
6.349
4.295
5.236
6.419
233
191
156
764
627
512
39
32
26
65
2½"
L
M
H
76.00
76.60
76.60
75.20
75.30
75.30
3.20
3.60
4.50
10
9
7
5.71
6.42
7.93
5.83
6.54
8.05
175
156
126
574
512
413
29
26
21
5.898
6.621
8.095
6.018
6.741
8.215
166
148
122
545
486
400
28
25
20
80
3"
L
M
H
88.70
89.50
89.50
87.90
88.00
88.00
3.20
4.00
4.80
10
8
6
6.72
8.36
9.90
6.89
8.53
10.40
149
120
101
489
394
331
25
20
17
6.925
8.586
10.109
7.122
8.756
10.609
140
114
97
459
374
318
23
19
16
100
4"
L
M
H
113.90
115.00
115.00
113.90
113.10
113.10
3.60
4.50
5.40
9
7
5
9.75
12.20
14.50
10.00
12.50
14.80
103
82
69
338
269
226
17
14
12
10.276
12.758
15.252
10.586
13.258
15.552
94
75
64
308
246
210
16
13
11
125
5"
M
H
140.80
140.80
138.50
138.50
4.80
5.40
6
5
15.90
17.90
16.40
18.40
63
56
207
184
11
9
16.649
18.619
17.149
19.119
58
52
190
171
10
9
8
150
6"
M
H
166.50
166.50
163.90
163.90
4.80
5.40
6
5
18.90
21.30
19.50
21.90
53
47
174
154
9
8
19.7
22.322
20.300
22.923
49
44
161
144
8
7
                                 

Seamless Pipes
Nominal Size
Outside Diameter
Wall Thickness
Sched. No
Nominal Weight
in
mm
in
mm
in
mm
 
(Kg/m)
½"
15
0.840
21.3
.109
.147
.188
.294
2.8
2.7
4.78
7.5
40
80
160
-
1.26
1.62
1.94
2.54
¾"
20
1.050
26.7
.113
.154
.218
.308
2.9
3.9
5.56
7.6
40
80
160
-
1.68
2.19
2.89
3.63
1"
25
1.315
33.4
.133
.179
.250
.358
3.4
4.5
6.35
9.1
40
80
160
-
2.50
3.23
4.24
5.45
1¼"
32
1.660
42.2
.140
.191
.250
382
3.6
4.9
6.35
9.7
40
80
160
-
3.38
4.46
5.61
7.75
1½"
40
1.90
48.3
.145
.200
.281
.400
3.7
5.1
7.1
10.2
40
80
160
-
4.05
5.40
7.23
9.54
2"
50
2.375
60.3
.154
.218
.344
.436
3.9
5.5
8.7
11.1
40
80
160
-
5.43
7.47
11.10
13.44
2½"
65
2.875
73.0
.203
.276
.375
.552
5.2
7.0
9.5
14.0
40
80
160
-
8.62
11.40
14.90
20.39
3"
80
3.500
88.9
.188
.216
.300
.438
.600
4.8
5.5
7.6
11.1
15.2
-
40
80
160
-
9.87
11.28
15.25
21.3
27.65
3½"
90
4.000
101.0
.188
.226
.318
4.8
5.7
8.1
-
40
80
11.35
13.58
18.62
4"
100
4.500
114.3
.156
.188
.219
.237
.337
.438
.531
.674
4.0
4.8
5.6
6.0
8.6
11.1
13.5
17.7
-
-
-
40
80
120
160
-
10.79
12.88
14.88
16.06
22.29
28.25
33.51
40.98
5"
125
5.563
141.3
.258
.375
.500
.625
.750
6.6
9.5
12.7
15.9
19.0
40
80
120
160
-
21.78
30.92
40.42
49.05
57.37
6"
150
6.625
168.3
.280
.432
.562
.719
.864

7.1
11.0
14.43
18.3
21.9

40
80
120
160
-
28.23
42.52
54.20
67.47
79.11
8"
200
8.825
219.1
.250
.277
.322
.408
.500
.594
.719
.812
.875
.908
6.4
7.0
8.2
10.3
12.7
15.1
18.3
20.6
22.2
23.0
20
30
40
60
80
100
120
140
-
160
33.28
36.76
42.49
53.07
64.57
75.79
90.32
100.68
107.77
111.18
10"
250
10.750
273.0
.250
.279
.307
.365
.500
.594
.719
.844
1.00
1.125
6.4
7.1
7.8
9.3
12.7
15.1
15.3
21.4
25.4
28.6
20
-
30
40
60
80
100
120
140
160
41.73
46.43
50.95
60.24
81.46
95.84
114.59
132.85
154.96
172.11
12"
300
12.750
323.8
.250
.330
.375
.406
.500
.562
.688
.844
1.000
1.125
1.312
6.4
8.4
9.5
10.3
12.7
14.3
17.5
21.4
25.4
28.6
33.3
20
30
-
40
-
60
80
100
120
140
160
49.67
65.12
73.75
79.71
97.0
108.96
131.81
159.66
186.75
207.87
238.60 </
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