Nickel Alloy Seamless Steel U Fin Tube 825 1/2" SCH40 U Bend Pipe Hot Rolled

Nickel Alloy 825 1/2'' SCH40 U Bend Pipe Seamless Steel Pipe

U Bend Tube Application

U tube heat exchangers designed for high temperature applications, especially steam condensing or hot oil systems.

Application: Boiler, heat exchanger, super heater, feedwater heater, condenser. Thïs model is selected when differential

expansion makes a fixed tube sheet exchanger unsuitable and when conditions preclude a floating head type (HPF) selection.
 

Stainless Steel Tubes Size for Heat Exchanger

Inch to mm Chart

TEST CERTIFICATE
Mill Test Certificate as per EN 10204 / 3.1

Advanced capabilities for U-bent tubes:

1. Reliable bending machines
2. Precision bending dies
3. Eddy current test before bending
4. Bending up to 105’(32m) developed length
5. Electric resistance stress relief annealing after bending
6. Hydrostatic test after bending
7. OD and WT reduction Testing
8. Full bending radius and tube legs tolerance check
9. Stack-rack boxing

Dimensional tolerances U Bend Tube acc. to TEMA R.C.B.

1) U Bend Pipe Length of straight part -0/+5 mm
Flattening (also called “ovality”) at the bend shall not exceed 10% of the nominal tube outside diameter.
Wall thickness in bending part acc. to TEMA R.C.B 2.31

2) U Bend Tube Minimum tube wall thickness in the bend part (T min)T(min) ≥ (SW × (2×R + D))/( 2× (R+D)
where: SW is smallest wall thickness
D Nominal outside diameter
R radius

3) U Bend Tube Radius tolerance
1) for R 100 mm +/- 3 mm
2) for R ≥ 100 mm +/- 5 mm

4). U bend Pipe Straightness tolerance max. 1,5 mm per 1 m
U Bend Tube ends: plain, vertically cut to the tube axis

U Bend Tube OD in mm can be bent upon agreement: 15.8 16.0 17.0 18.0 19.05 20.0 21.3 25.4 26.7 31.8 32.0 38.1mm

U bend Tube Initial Length
Maximum lengths of 27000mm can be supplied on request

U bend Pipe Bending radius
Minimum: 1.5×OD
Maximum: 1500 mm

Stainless Steel ubend :

ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L, 316TI, 316H, 304L

Carbon Steel ubend
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel
ASTM A420 WPL3 / A420WPL6

Alloy Steel ubend
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel ubend
ASTM A 815 UNS NO S 31803, S 32205, S 32760, S 32750

Copper Nickel
C70600(90:10), C71500(70:30), C71640.

Packing and Shipping

Package:Standard export carton packing.

Delivery time:stock 7-10 workign days after confirming order,detail delivery date should be decided according to

production season and order quantity.