Stainless Steel U Bend Tube ASTM A789,ASTM A803,JIS-G3459,GOST 9941-81,ASTM A17
U-Bend Tube are widely used in Heat Exchanger Systems. Heat-Exchanger Equipment on the basis of
Seamless Stainless U-Tubes and Welded Stainless U bend Tube is essential in strategically important and
critical fields---Nuclear And Petrochemical Machine Building.
Allied Rainbow Group Start to Produce U Bending Tube Since 2006,Up to now already supply more than
30000 tons Stainless Steel U Bend Tube to 35 countries.
Standard: ASTM A213,ASTM A269,ASTM A249,ASTM A688,ASTM A789,ASTM A803,JIS-G3459,GOST 9941-81,ASTM A179,ASTM A192,
Steel Grade:
|
Ferrite |
Austenite |
Duplex |
Super Duplex |
Ni-Alloys |
Titanium |
|
TP410 TP405 S44400 S44660 TP430 |
TP304/304L TP316/316L TP316Ti TP317/317L TP321 TP347 |
S31803 S32205 S32304 |
S32750 S32760 |
N06600 N08020 N00880 N08825 N08904 |
Gr.2 |
Initial Length: Maximum Lengths of 35000mm can be supplied on request.
Dimensions:
OD:12.7mm---38.1mm
WT: 0.89~2.77mm
Bending Radius:
Minimum 1.5*OD
Maximum 1500mm
Heat Treatment of the bend
U bends with a bending radius up to maximum of 1500mm can be heat treated on request
The basic Testing and processing:
1.High Pressure hydrostatic Test:Minimum:10 Mpa--25Mpa
2.Air Under Water Test After Bending
3.U Tube wall thickness Test
4.Eddy Current Test Before U bend Formed
5.Ultrasonic test before U bend Formed
6.Heat Treatment to stress relieved
7.Ball passing Test
Packaging: In Strong Transport-Worthy Pre-fumigated wooden boxes of corresponding dimensions for
each tube Length, Radius, Diameter, According To PO requirements as well as wrapped In polyethylene
films With soft plastic caps on both end of Tube.
Mill Test Certificate:EN 10204/3.1B
Delivery:30-60 days
-Customer Specifications.
