U Tubes Heat Exchanger

At Anand Seamless Ltd, We manufacture COLD DRAWN SEAMLESS CARBON STEEL and COLD DRAWN SEAMLESS ALLOY STEEL TUBES AND PIPES as per various International Specifications.

These tubes mainly find applications in Pressure Vessels, Cryogenic Pressure Vessels, High Pressure Equipments, Tube Sheets of Heat Exchangers, Boilers, Air Pre Heater, Finned Tubes, and Air Cooler Tubes etc. They are used in Industries like Refineries, Power Plants, Steel Plants, Chemical Factories, Fertilizer Plants, and Ship Building etc.

U Tubes are manufactured after the Straight Tubes are manufactured. The Bending is done in Cold State on an Automatic U Bending Machine. To ensure that wall thinning and diameter ovality are kept in control, bending of tubes Is done with a mandrel inserted in the tubes. Furthermore the U – Bend portion of the U-Tube is Stress Relieved in controlled conditions and cycle to give longer life.

The U bent tubes are finally 100% Tested for Hydrostatic Leak Test and then finally DP tested. These tubes are vulnerable to getting damaged in transit and hence are required to be handled with care. We ensure this by packing tubes in specially designed steel frames. These frames are fit into the wooden box o further ensure safety of the tubes.

The bending of the tubes is carried out in respect to various international standards like:

• TEMA RCB 2
• ASTM A 556 / ASME SA 556
• AS PER CLIENT DRAWING

Our Manufacturing Range

We manufacture these tubes as per various international standards such as:

• ASTM A 53 GR A / ASME SA 53 GR A
• ASTM A 53 GR B / ASME SA 53 GR B
• ASTM A 106 GR A/ ASME SA 106 GR A
• ASTM A 106 GR B/ ASME SA 106 GR B
• ASTM A 106 GR C/ ASME SA 106 GR C
• ASTM A 179 / ASME SA 179
• ASTM A 192 / ASME SA 192
• ASTM A 213 / ASME SA 213 ( T2,T5 ,T11,T12 ,T22 etc)
• ASTM A 210 GR A1/ ASME SA 210 GR A1
• ASTM A 210 GR C / ASME SA 210 GR C
• ASTM A 210 GR A1/ ASME SA 210 GR A1
• ASTM A 210 GR C / ASME SA 210 GR C
• ASTM A 334 GR 1 / ASME SA 334 GR 1 (LOW TEMPERATUARE APPLICATION)
• ASTM A 334 GR 3 / ASME SA 334 GR 3 (LOW TEMPERATUARE APPLICATION)
• ASTM A 334 GR 6 / ASME SA 334 GR 6 (LOW TEMPERATUARE APPLICATION)
• ASTM A 334 GR 7 / ASME SA 334 GR 7 (LOW TEMPERATUARE APPLICATION)
• EN 10216
• BS 3059