MS ERW Pipes Structural Purposes

MS ERW Pipes Structural Purposes Conforming to IS : 1161 : 1998 Grade YST 210, YST 240, YST 310

N.B.and
Series
mm
Outside
diameter
mm
Wall
Thickness
mm
Nominal Weight
Black Tubes Plain End
Calculated Nominal Weight
Galvanized Tubes Plain End
Kg/m m/tonne Kg/m m/tonne
L
15 M
H
21.3 2.0
2.6
3.2
0.941
1.21
1.44
1056
826
694
1.00
1.26
1.49
1003
794
671
L
20 M
H
26.9 2.3
2.6
3.2
1.38
1.56
1.87
725
641
535
1.43
1.61
1.92
699
621
521
L
25 M
H
33.7 2.6
3.2
4.0
1.98
2.41
2.93
505
415
341
2.03
2.46
2.98
493
407
336
L
32 M
H
42.4 2.6
3.2
4.0
2.54
3.10
3.79
394
323
264
2.62
3.18
3.87
382
314
258
L
40 M
H
48.3 2.9
3.2
4.0
3.23
3.56
4.37
310
281
229
3.34
3.67
4.48
299
272
236
L
50 M
H
60.3 2.9
3.6
4.5
4.08
5.03
6.16
245
199
162
4.20
5.15
6.31
238
194
158
L
65 M
H
76.1 3.2
3.6
4.5
5.71
6.42
7.93
175
156
126
5.86
6.57
8.10
171
152
123
L
80 M
H
88.9 3.2
4.0
4.8
6.72
8.36
9.90
149
120
101
6.90
8.54
10.08
145
117
99
L
90 M
H
101.6 3.6
4.0
4.8
8.70
9.63
11.50
115
144
87
8.97
7.20
11.77
111
139
85
L
100 M
H
114.3 3.6
4.5
5.4
9.75
12.20
14.50
103
82
69
9.97
12.42
14.72
100
81
68
L
110 M
H
127.0 4.5
4.8
5.4
13.60
14.50
16.20
74
69
62
13.90
14.80
14.80
72
68
61
L
125 M
H
139.7 4.5
4.8
5.4
15.00
15.90
17.90
67
63
56
15.25
16.15
18.15
66
62
55
L
135 M
H
152.4 4.5
4.8
5.4
16.40
17.50
19.60
61
57
51
16.78
17.88
19.98
60
56
55
L
150 M
H
165.1 4.5
4.8
5.4
17.80
18.90
21.30
56
53
47
18.20
19.30
21.70
55
52
46
L
150 M
H
168.3 4.5
4.8
5.4
6.3
18.20
19.40
21.70
25.20
55
52
46
40
18.66
19.88
22.24
41.00
54
50
45
24
L
175 M
H
193.7 4.8
5.4
5.9
22.40
25.10
27.30
45
40
37
22.94
25.64
27.84
44
39
36
L
200 M
H
219.1 4.8
5.6
5.9
25.40
29.50
31.00
39
34
32
25.95
30.05
31.55
39
33
32
225 H 244.5 5.9 34.70 29 35.36 28
250 H 273.0 5.9 38.90 26 39.68 25
300 H 323.9 6.3 49.30 20 50.28 20
350 H 355.6 8.0 68.60 15 69.58 14
A. Tensile Properties
Grade Y.S. (MIN) Mpa T.S. (MIN) Mpa % age Elongation
YST-210 210 330 20
YST-240 240 410 17
YST-310 310 450 14
B-Tolerance
(i) Outside diameter
upto& including 48.3 mm

Over 48.3mm

+0.4mm
-0.8mm
±1%
(ii) Thickness ± 10%
(iii) Weight single tube Light,

Medium & Heavy

-10 tonne lots light
-10 tonne lots Medium & Heavy
+10%
-8%
±10%
-
±5%
±7.5

Note :Elongation percent for tubes up to and including 25mm NB for all grades shall be 12 minimum.