Specification IS: (Part -1) 2004 -DIN 2439, DIN
2440, DIN 2441
( Equivalent BS : 1387 : 1985 / EN 10255 : 2004 /
EN 10240 : 1998 / DIN 2444 )
NB and Series
Outside Diameter
Wall Thikness
Nominal Weight
Screwed & Socketed
MM
MM
MM
SWG
Kg/M
Meters /Tonne
15
L
M
H
21.0
21.0
21.0
21.4
21.8
21.8
2.0
2.6
3.2
14
12
10
0.96
1.22
1.45
1046
820
690
20
L
M
H
26.4
26.5
26.5
26.9
27.3
27.3
2.3
2.6
3.2
13
12
10
1.39
1.57
1.88
719
637
532
25
L
M
H
33.2
33.3
33.3
33.8
34.2
34.2
2.6
3.2
4.0
12
10
8
2.00
2.43
2.95
500
411.5
339
32
L
M
H
41.9
42.0
42.0
42.5
42.9
42.9
2.6
3.2
4.0
12
10
8
2.57
3.13
3.82
389
319
262
40
L
M
H
47.8
47.8
47.9
48.4
48.8
48.8
2.9
3.2
4.0
11
10
8
3.27
3.60
4.41
306
278
227
50
L
M
H
59.6
59.7
59.7
60.2
60.8
60.8
2.9
3.6
4.5
11
9
7
4.15
5.10
6.26
241
196
160
65
L
M
H
75.2
75.3
75.3
76.0
76.6
76.6
3.2
3.6
4.5
10
9
7
5.83
6.54
8.05
171.5
153
124
80
L
M
H
87.9
88.0
88.0
88.7
89.5
89.5
3.2
4.0
4.8
10
8
6
6.89
8.53
10.10
145
117
96
100
L
M
H
113.0
113.1
113.1
113.9
115.0
115.0
3.6
4.5
5.4
9
7
5
10.00
12.50
14.80
100
80
67.5
125
M
H
138.5
138.5
140.8
140.8
4.8
5.4
6
5
16.40
18.40
61
54
150
H
163.9
163.9
165.5
166.5
4.8
5.4
6
5
19.50
21.90
51
46
Thikness
& Mass are applicable for Galvanized Steel Tubes as
per clause 8.1.1 of IS : 1239 (Part-1) 2004
Tolerance
A - Thikness
Tolerance
B- Weight
Tolerance
Length Tolerance
Light Tubes
+
not limited -8%
1
Medium tubes ( Light Series )
2. Single Tube ( Medium & Heavy Series )
3. For quantities per load of 10 tonnes minimum
( Medium and Heavy Series )
+
10% -8%
+10%
+7.5 % - 5 %
+-7.5%
Unless otherwise
Specified 4 to 7 mtrs. Can also be supplied in
Fix Lengths +-5cm.
Medium & heavy Tubes
+
not limited -8%
Application
Areas
Our range of ERW tubes is available in a variety
of dimensions and can also be customized as per
the client's requirement. ERW Pipes & Tubes /
Black Steel Pipes & Tubes / Galvanized Pipes &
Tubes have a wide application in -
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