Product Overview
Hot bend pipes involves heating steel pipes to a plastic state using medium frequency induction heating, then pushing them into shape, followed by rapid cooling after bending. This process ensures uniform pipe wall thickness, with a thinning rate of less than 10% on the outer arc side, a smooth and wrinkle-free inner arc side, high bending accuracy, and the ability to undergo heat treatment after bending to eliminate stress while maintaining stable material properties. Hot bend pipes are suitable for various types of steel and diameters, support customization of different curvature radii and angles, and are widely used in high-pressure and high-temperature environments such as oil and gas transportation and chemical engineering.
Technical Parameters
1. Pipe Diameter Range: φ159mm - φ1620mm (Customizable)
2. Wall Thickness Range: 3mm - 120mm
3. Material Series: Carbon Steel: 20#, WPB, Q345B, L245-L485; Alloy Steel: 12Cr1MoV, 15CrMo, A335P11/P22/P91; Stainless Steel: 304/304L, 316/316L, 321; Pipeline Steel: X42 - X80
4. Bending Angle: 0°- 100°
Hot Bending Pipe
DIMENSIONS
|
Nominal Size DN |
Pipe outside diameter (D) |
Bend Radius (R) |
Wall thickness (t) |
Angle of Bend (A) |
Straight pipe section length (L) |
|
|
Ⅰ |
Ⅱ |
|||||
|
150 |
168.3 |
159 |
R=3D~10D |
5-60mm |
≤90 |
Per customer specifications |
|
200 |
219.1 |
219 |
R=3D~10D |
|||
|
250 |
273 |
273 |
R=3D~10D |
|||
|
300 |
323.9 |
325 |
R=3D~10D |
|||
|
350 |
355.6 |
377 |
R=3D~10D |
|||
|
400 |
406.4 |
426 |
R=3D~10D |
|||
|
450 |
457 |
480 |
R=3D~10D |
|||
|
500 |
508 |
530 |
R=3D~10D |
|||
|
550 |
559 |
R=3D~10D |
||||
|
600 |
610 |
630 |
R=3D~10D |
|||
|
650 |
660 |
R=3D~8D |
||||
|
700 |
711 |
720 |
R=3D~8D |
|||
|
750 |
762 |
R=3D~8D |
||||
|
800 |
813 |
820 |
R=3D~8D |
|||
|
850 |
864 |
R=3D~8D |
||||
|
900 |
914 |
920 |
R=3D~8D |
|||
|
950 |
965 |
R=3D~8D |
||||
|
1000 |
1016 |
1020 |
R=3D~8D |
|||
|
1050 |
1067 |
R=3D~8D |
||||
|
1100 |
1118 |
1120 |
R=3D~8D |
|||
|
1150 |
1168 |
R=3D~8D |
||||
|
1200 |
1219 |
1220 |
R=3D~8D |
|||
|
1250 |
1270 |
R=3D~6D |
||||
|
1300 |
1320.8 |
R=3D~6D |
||||
|
1350 |
1371.6 |
R=3D~6D |
||||
|
1400 |
1422.4 |
R=3D~6D |
||||
|
1450 |
1473.2 |
R=3D~6D |
||||
|
1500 |
1524 |
R=3D~6D |
||||
|
1600 |
1625.6 |
R=3D~6D |
||||
|
1800 |
1828.8 |
R=3D~6D |
||||
|
2000 |
2032 |
R=3D~6D |
||||
Product Features
Process Features
Hot bend pipes can locally heat to improve material utilization; continuous pushing ensures product consistency; synchronous cooling controls microstructure and properties.
Structural Performance
Uniform wall thickness distribution; precise dimensional control; post-bending heat treatment stabilizes material properties.
Flexible Specifications
Any angle from 0° to 100°; various bending radii; suitable for carbon steel, alloy steel and other materials.
Applications
Long-distance oil and gas transmission pipelines
Hot bend pipes are suitable for pipeline turning, crossing and overpassing, and avoidance nodes in long-distance transmission pipelines. They are applied to key projects such as the West-to-East Gas Transmission Project, with pipe diameters ranging from φ159mm to 1220mm, meeting the construction needs of main lines and branch lines.
Urban gas pipeline network
Used for directional drilling crossing in high-pressure and sub-high-pressure pipeline networks and terrain adaptation, it has entered the urban pipeline network supplier list.
Central heating system
Hot bend pipes adopt prefabricated insulated bent pipes with a temperature resistance of 120℃, suitable for turning nodes in heating networks.
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