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Seamless Steel Line Pipe Size Range
Manufacturing Available Size Range (Carbon Steel Pipes)
Nominal Size
O.D.
Wall thickness (mm)
O.D.
(in)
(mm)
2.5
3.0
3.2
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10
11
11
12
12
13
13
14
14
15
15
16
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
45
50
(mm)
3/4
26.7
26.7
1
33.4
33.4
1 1/2
42.2
42.2
42.7
42.7
45.0
45.0
48.3
48.3
(48.6)
(48.6)
(50.8)
(50.8)
(57.0)
(57.0)
2
60.3
60.3
60.5
60.5
(63.5)
(63.5)
(70.0)
(70.0)
2 1/2
73.0
73.0
(76.2)
(76.2)
(76.3)
(76.3)
(80.0)
(80.0)
(82.6)
(82.6)
3
88.9
88.9
89.1
89.1
3 1/2
101.6
101.6
(110.0)
(110.0)
4
114.3
114.3
(118.0)
(118.0)
(120.0)
(120.0)
127.0
127.0
130.0
130.0
(135.0)
(135.0)
139.7
139.7
140.0
140.0
5
141.3
141.3
(150.0)
(150.0)
152.4
152.4
159.0
159.0
(165.2)
(165.2)
6
168.3
168.3
(177.8)
(177.8)
182.0
182.0
(185.0)
(185.0)
(190.7)
(190.7)
193.7
193.7
(196.7)
(196.7)
(203.4)
(203.4)
(208.0)
(208.0)
216.3
216.3
8
219.1
219.1
(232.0)
(232.0)
(241.3)
(241.3)
244.5
244.5
(254.0)
(254.0)
(267.4)
(267.4)
10
273.1
273.1
(285.0)
(285.0)
298.5
298.5
(305.0)
(305.0)
318.5
318.5
12
323.9
323.9
325.0
325.0
(327.0)
(327.0)
339.7
339.7
(346.1)
(346.1)
14
355.6
355.6
(368.0)
(368.0)
377
377
(381.0)
(381.0)
16
406.4
406.4
426.0
426.0
(in)
(mm)
2.5
3.0
3.2
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10
11
11
12
12
13
13
14
14
15
15
16
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
45
50
(mm)
Nominal Size
O.D.
Wall thickness (mm)
O.D.
: Rotary piercing prosess
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