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DN 50 U Shaped Metal Pipe Non - Alloy , Heat Exchanger Stainless Steel 304 Pipes

DN 50 U Shaped Metal Pipe Non - Alloy , Heat Exchanger Stainless Steel 304 Pipes

Brand Name:TOBO
Certification:SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED
Model Number:ASTM A/SA268 TP439
Minimum Order Quantity:1 pcs
Delivery Time:15- 20 work days
Payment Terms:L/C, T/T, Western Union
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Location: Shanghai Shanghai China
Address: No.208,Lvdi Road,Baihe Town,Qingpu District,Shanghai,China
Supplier`s last login times: within 34 hours
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Product Details

DN 50 ASTM A/SA268 TP439 U Fin Tube Welded Stainless Steel For Heat Exchanger


U Bend Tube are manufactured in our plant as per the customer requirements. Solution annealing after bend will be process to lower the risidual stress, and followed by hydrostatic testing and dye penetrant testing if required.

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 Tubes Size for Heat Exchanger


Inch to mm Chart

InchesDecimalMillimeters
1/16″.06251.59 mm
1/8″.12503.18 mm
3/16″.18754.76 mm
1/4″.25006.35 mm
5/16″.31257.94 mm
3/8″.37509.53 mm
7/16″.437511.11 mm
1/2″.500012.70 mm
9/16″.562514.29 mm
5/8″.625015.88 mm
11/16″.687517.46 mm
3/4″.750019.05 mm
13/16″.812520.64 mm
7/8″.875022.23 mm
15/16″.937523.81 mm
1″1.0025.40 mm
1 1/4″1.2531.75 mm
1 1/2″1.5038.10 mm
2″2.0050.80 mm

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.


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


China DN 50 U Shaped Metal Pipe Non - Alloy , Heat Exchanger Stainless Steel 304 Pipes supplier

DN 50 U Shaped Metal Pipe Non - Alloy , Heat Exchanger Stainless Steel 304 Pipes

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