Factory best selling Steel Tubing Suppliers - Tube Bending – Donghao Metal Group Detail:
We can supply high quality bend tubes according to customer’s drawings and requirements. We have advanced machines for bending, stress relieve heat treatment, hydrostatic test machine etc, the smallest radius can be 0.5D, our bend tubes are widely used in pressure vessel and boiler plants.
U-BENDING / U bend Tubing / U Tube:
U-BENDING / U bend Tubing / U Tube heat exchangers comprise a U shaped tube fixed by flow baffles or tubes supports and placed in shell to control the fluid present in the exterior of the tube assembly. The fluid is guided into the tubes by a head assembly, which is fixed to the shell by bolts.
Bending Radius: From 1.5 * O.D (outside diameter) ,When ordering tubes with bending radius less than 1.5*OD, it is necessary to get the agreement with us.
Straight tubes maximum length (before bending): 35000 mm.
Leg length: min 1 meter, max. 16500 mm (for max r=1500mm)
Note: Other sizes are available upon agreement.
Heat treatment: stress relieved after u-bending (bending area plus 300mm for each leg).
Standards: A213/A269, A789/A790, EN 10216-5 TC1, ASME SA – 556/556 m
Outside diameter range from 6.35-50.8mm
Wall thickness range from 0.71-3.81mm
Inspection & Test：
1. 100% PMI / Chemical analysis tests.
2.100% Dimension tests & 100% Visual examination
3. Tension test, flange test, hardness test, flattening test
4. 100% Eddy Test or Hydrostatic Test before bending and 100% Hydrostatic test after bending
5. Checking stress released heat treatment in bending area plus 300mm straight leg length after bending with agreement with clients.
Notes: all the tests and inspection need to provide with reports according to standard and test results.
Product detail pictures:
Related Product Guide:
"Based on domestic market and expand overseas business" is our improvement strategy for Factory best selling Steel Tubing Suppliers - Tube Bending – Donghao Metal Group, The product will supply to all over the world, such as: United States , Johor , Slovakia , With the development and enlargement of mass clients abroad, now we've set up cooperative relationships with many major brands. We've our own factory and also have many reliable and well-cooperated factories in the field. Adhering to the "quality first, customer first, We are provideing high-quality, low-cost items and first-class service to customers. We sincerely hope to establish business relationship with customers from all over the world on the basis of quality, mutually benefit. We welcome OEM projects and designs.
By Annabelle
from Bhutan
- 2016.03.28 12:22
We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
By Murray
from Liberia
- 2015.06.03 10:17
