ASME A/SA668/213 TP304L WeldedU-bent Tubes Re-drawn Stainless Steel

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.

Stainless Steel Tubes Size for Heat Exchanger

Inch to mm Chart

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.

FAQ

Q:Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.