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ERW Black & Galvanised Steel Tubes
ERW Steel Tubes
Steel Tubes for Structure Purpose
Scaffolding Tubes
Square And Rectangular Hollow Sections For Structural Use
Cold Rolled Coils
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ERW Pipes for Gas & Oil
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AST Pipes



AST Pipes
Veerabhadra International

AST Pipes ERW PIPES FOR GAS & OIL
Ashtapad Overseas Ashtapad Overseas
We are a leading manufacturer of Electric Resistance Welded (E.R.W.) steel Pipe are used for oil and gas processing and transmission lines. All our products are registered and assures consistent quality in its application. They are equally good in hot or wet applications such as river crossings and rough terrain. Our pipes are suitable for use in conveying gas, water and oil in both the oil and natural gas industries.


ERW Pipes

ERW STEEL TUBES FOR LINE PIPES IN OIL & NATURAL GAS

Conforming to IS : 1978-82


Technical Specification
N.B. mm O.D. mm Wall Thickness mm Plain & Weight (Kg/m) STD Test Pressure
(Min) 100 Kpa Grade 210 (Min) 100 Kpa Grade 240
65 73.0 3.20
3.60
4.00
4.40
4.80
5.20
5.50		 5.51
6.16
6.81
7.44
8.07
8.69
9.16		 -
-
136
150
163
172
172		 -
-
158
172
172
172
172
80 88.90 3.20
3.60
4.00
4.40
4.80
5.50		 6.76
7.57
8.37
9.17
9.95
11.31		 89
112
123
134
154		 104
117
130
143
156
172
90 101.60 3.60
4.00
4.40
4.80
5.70
6.40
7.10		 8.70
9.63
10.55
11.46
13.48
15.02
16.55		 88
98
108
117
139
156
174		 102
114
125
137
162
182
193
100 114.30 3.60
4.00
4.80
5.20
5.60
6.00
6.40
7.10		 9.83
10.88
12.96
13.99
15.01
16.02
17.03
18.77		 78
87
104
113
122
130
139
154		 91
101
121
132
142
152
162
180
125 141.30 3.20
4.00
4.80
5.60
6.60
7.10		 10.90
13.94
16.16
18.74
21.92
23.50		 56
70
84
98
116
125		 65
82
98
115
135
145
150 168.30 3.60
4.00
4.80
5.20
5.60
6.40
7.10		 14.62
16.21
19.35
20.91
22.47
25.55
28.22		 53
59
71
77
83
94
105		 62
76
81
89
96
110
122
200 219.1 4.80
5.60
6.40
7.00		 25.37
29.48
33.57
36.61		 54
63
73
79		 63
74
84
92
250 273.1 4.80
5.60
6.40
7.10
7.80
8.70
9.30		 31.76
36.94
42.09
6.57
1.03
56.72
60.50		 44
51
58
65
71
79
85		 51
59
68
75
83
92
98
300 323.90 4.80
5.60
6.40
7.10
7.90
8.40
8.70
9.50		 37.77
43.96
50.11
55.47
61.56
65.35
67.62
73.65		 37
43
49
54
61
64
67
73		 43
50
57
63
71
75
78
85
350 355.60 4.80
5.20
6.40
7.10
7.90
8.70
9.50		 41.52
44.93
55.11
61.02
67.74
74.42
81.08		 34
36
45
50
55
61
66		 390
42
52
58
64
71
77



Tolerances
a. Outside diameter Pipe body : ± 1%
b. Thickness 88.9 mm OD : 101.6 mm OD : & above : +18% -12.5% + 15% - 12.5%
c. Weight : Single Tube : Lot Wt : (Min. 18 M.T.) + 10% - 3.5% - 1.75%
d. Single random & Double random 4 to 7 10 to 12


Grade of Pipe Min Yield Strength Min Tensile Strength Min Elongation for Gauge Length Min
MPa MPa See Note
Yst170 170 310
Yst210 210 330
Yst240 240 410

Note – The Minimum elongation in 50.80mm shall be that determined by the following formula:

Where
e – minimum elongation in 50.80 min in percent rounded to the nearest half percent;

A – cross sectional area of tensile test specimen in square millimeters, based on specified outside diameter or nominal specimen width and specified wall thickness rounded to the nearest 6 sq. mm or 484 mm2 whichever is smaller; and

U – specified tensile strength, MPa



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Product Range
ERW Black & Galvanised Steel Tubes ERW Steel Tubes Steel Tubes for Structure Purpose
Scaffolding Tubes Square And Rectangular Hollow Sections For Structural Use Cold Roll Coils
Tubular Poles ERW Pipes for Gas & Oil Fence Tubes
Galvanized Sheets-Coils Cold Rolled Steel Galvanized Coils Sheets Technical Specification
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