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The hot expanded seamless steel pipe is relatively low density, but the contraction of the strong, seamless steel pipe can be referred to as thermal expansion. The roughing finishing process for expanding the diameter of a pipe by a cross-rolling method or a drawing method. Steel pipe thickening in a short period can produce non-standard and special types of seamless tubes with low-cost and high production efficiency, the current international developments in the field of tube rolling.
Application of hot expanded seamless pipe
Petrochemical Industries
Paper industries
Sugar Factory
Cement Factory
Power Plant
Petroleum Industries
Chemical Industries
Shipbuilding Plant
Construction Industries
Steel Plant
Oil Mills Industries
Fertilizers Industries
Oil&Gas Industries
Refineries Industries
Defense Industries
|
Nominal size |
Outside Diameter |
Nominal Wall Thickness (mm) |
|||||||||||||
|
DN |
NPS |
OD(MM) |
SCH 10 |
SCH 20 |
SCH 30 |
STD |
SCH 40 |
SCH 60 |
XS |
SCH 80 |
SCH 100 |
SCH 120 |
SCH 140 |
SCH 160 |
XXS |
|
200 250 300 |
8 10 12 |
219.1 273.1 323.9 |
3.76 4.19 4.57 |
6.35 6.35 6.35 |
7.04 7.80 8.38 |
8.18 9.27 9.53 |
8.18 9.27 10.31 |
10.31 12.70 14.27 |
12.70 12.70 12.70 |
12.70 15.09 17.48 |
15.09 18.26 21.44 |
18.26 21.44 25.40 |
20.62 25.40 28.58 |
23.01 28.58 33.32 |
22.23 25.40 25.40 |
|
350 400 450 |
14 16 18 |
355.6 406.4 457.2 |
6.35 6.35 6.35 |
7.92 7.92 7.92 |
9.53 9.53 11.13 |
9.53 9.53 9.53 |
11.13 12.70 14.27 |
15.09 16.66 19.05 |
12.70 12.70 12.70 |
19.05 21.44 23.83 |
23.83 26.19 29.36 |
27.79 30.96 34.93 |
31.75 36.53 39.67 |
35.71 40.49 45.24 |
— — |
|
500 550 600 |
20 22 24 |
508 559 610 |
6.35 6.35 6.35 |
9.53 9.53 9.53 |
12.70 12.70 14.27 |
9.53 9.53 9.53 |
15.09 — 17.48 |
20.62 22.23 24.61 |
12.7 |
26.19 28.58 30.96 |
32.54 34.93 38.89 |
38.10 41.28 46.02 |
44.45 47.63 52.37 |
50.01 53.98 59.54 |
— — |
|
500 550 600 |
20 22 24 |
508 559 610 |
6.35 6.35 6.35 |
9.53 9.53 9.53 |
12.70 12.70 14.27 |
9.53 9.53 9.53 |
15.09 — 17.48 |
20.62 22.23 24.61 |
12.70 12.70 12.70 |
26.19 28.58 30.96 |
32.54 34.93 38.89 |
38.10 41.28 46.02 |
44.45 47.63 52.37 |
50.01 53.98 59.54 |
— — |
|
660 700 750 |
26 28 30 |
660 711 762 |
7.92 7.92 7.92 |
12.70 12.70 12.70 |
— 15.88 15.88 |
9.53 9.53 9.53 |
— — |
— — |
12.70 12.70 12.70 |
— — |
— — |
— — |
— — |
— — |
— — |
|
800 850 900 |
32 34 36 |
813 864 914 |
7.92 7.92 7.92 |
12.70 12.70 12.70 |
15.88 15.88 15.88 |
9.53 9.53 9.53 |
17.48 17.48 19.05 |
— — |
12.70 12.70 12.70 |
— — |
— — |
— — |
— — |
— — |
— — |
|
Outside Diameter (mm) / |
SCH |
SCH |
SCH |
STD |
SCH |
SCH |
XS |
SCH |
SCH |
SCH |
SCH |
SCH |
|
457 |
6.35 |
7.92 |
11.13 |
9.53 |
14.27 |
19.05 |
12.70 |
23.88 |
29.36 |
34.93 |
39.67 |
45.24 |
|
508 |
6.35 |
9.53 |
12.70 |
9.53 |
15.09 |
20.62 |
12.70 |
26.19 |
32.54 |
38.10 |
44.45 |
50.01 |
|
559 |
6.35 |
9.53 |
12.70 |
9.53 |
|
22.23 |
12.70 |
28.58 |
34.93 |
41.28 |
47.63 |
53.98 |
|
610 |
6.35 |
9.53 |
14.27 |
9.53 |
17.48 |
24.61 |
12.70 |
30.96 |
38.39 |
46.02 |
52.37 |
59.54 |
|
660 |
7.92 |
12.70 |
|
9.53 |
|
|
12.70 |
|
|
|
|
|
|
711 |
7.92 |
12.70 |
15.88 |
9.53 |
|
|
12.70 |
|
|
|
|
|
|
762 |
7.92 |
12.70 |
15.88 |
9.53 |
|
|
12.70 |
|
|
|
|
|
|
Remark: The above standard and specification are just for reference, we can also produce customized product according to customer’s request. |
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