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  KWK Steel Co.,Ltd.

U-Bend Stainless Steel Tubes for Heat Exchanger

'U' Bends can be Heat Treated in accordance with clients' requirements followed by hydrostatic testing and dye penetrant testing if required.

U-bent stainless steel tubes are widely used in heat-exchanger systems.
Heat-exchanger equipment on the basis of seamless stainless U-tubes is essential in strategically important and critical fields - nuclear and petrochemical machine building.

Tube-bending line, that will allow to produce U-tubes as per such standards:
 1. ASTM A688/A688M
 2. ASTM A803/A803M
 3. ASTM A556/A556M, ASME SA-556
 4. ASME SA-688
Initial Length:Maximum lengths of 27000mm can be supplied on request

Bending radius: Maximum 1000 mm
Heat treatment of the bend:U-bends with a bending radius up to maximum of 1000mm 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 Tubes 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
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