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Home> Featured Product>HDG Welded Steel Pipe
Grade BS 1387-1985, British Standard for Welded Steel Pipe or BS 21 for threaded pipe
Normal Diameter |
Wall Thickness
|
Outside
Diameter (mm)
|
Weight (Black pipe)kg/m
Pian End
|
Thread
|
Max
|
Min
|
mm
|
Inch
|
A
|
B
|
C
|
A
|
B
|
C
|
A
|
B
|
C
|
A
|
B
|
C
|
Thread
number
per inch
|
Length
of pipe(mm)
|
15
|
1/2
|
2.0
|
2.6
|
3.2
|
21.4
|
21.7
|
21.7
|
21.0
|
21.1
|
21.1
|
0.947
|
1.21
|
1.44
|
14
|
13.2
|
20
|
3/4
|
2.3
|
2.6
|
3.2
|
26.9
|
27.2
|
27.2
|
26.4
|
26.6
|
26.6
|
1.38
|
1.56
|
1.87
|
14
|
14.5
|
25
|
1
|
2.6
|
3.2
|
4.0
|
33.8
|
34.2
|
34.2
|
33.2
|
33.4
|
33.4
|
1.98
|
2.41
|
2.94
|
11
|
16.8
|
32
|
1-1/4
|
2.6
|
3.2
|
4.0
|
42.5
|
42.9
|
42.9
|
41.9
|
42.1
|
42.1
|
2.54
|
3.10
|
3.80
|
11
|
19.1
|
40
|
1-1/2
|
2.9
|
3.2
|
4.0
|
48.4
|
48.8
|
48.8
|
47.8
|
48.0
|
48.0
|
3.23
|
3.57
|
4.38
|
11
|
19.1
|
50
|
2
|
2.9
|
3.6
|
4.5
|
60.2
|
60.8
|
60.8
|
59.6
|
59.8
|
59.8
|
4.08
|
5.03
|
6.19
|
11
|
23.4
|
65
|
2-1/2
|
3.2
|
3.6
|
4.5
|
76.0
|
76.6
|
76.6
|
75.2
|
75.4
|
75.4
|
5.71
|
6.43
|
7.93
|
11
|
26.7
|
80
|
3
|
3.2
|
4.0
|
5.0
|
88.7
|
89.5
|
89.5
|
87.9
|
88.1
|
88.1
|
6.72
|
8.37
|
10.3
|
11
|
29.8
|
100
|
4
|
3.6
|
4.5
|
5.4
|
113.9
|
114.9
|
114.9
|
113.0
|
113.3
|
113.3
|
9.75
|
12.1
|
14.5
|
11
|
35.8
|
125
|
5
|
-
|
5.0
|
5.4
|
-
|
140.6
|
140.6
|
-
|
138.7
|
138.7
|
-
|
16.6
|
17.9
|
-
|
-
|
150
|
6
|
-
|
5.0
|
5.4
|
-
|
166.1
|
166.1
|
-
|
164.1
|
164.1
|
-
|
19.7
|
21.3
|
-
|
-
|
Wall thickness tolerance of class A PIpes - 8%
Wall thickness tolerance of Class B & C pipes: 10%
A - Light gauge (Brown)
B - Medium gauge (Blue)
C - Heavy gauge (Red)
Length tolerance of pipes: +20mm/0 or according to the customers requirement +6mm/o
GB/T 7735 - 1995
The online eddy current testing for all kinds of steel pipes is in accordance with Class A or GB/T 7735-1995. The method of eddy current test for steel pipes.
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