professional factory for 304l Stainless Steel Round Tubing - Heat Exchanger Tubes – Dextube

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To create more value for customers is our business philosophy; customer growing is our working chase for 304l Seamless Tubing , S32205 Tube , S31803 Tube , By more than 8 years of company, now we have accumulated rich experience and advanced technologies from the generation of our merchandise.

professional factory for 304l Stainless Steel Round Tubing - Heat Exchanger Tubes – Dextube Detail:

Heat exchanger tube in an extensive range of Austenitic,Ferritic and Martensitic stainless steels, duplex stainless steels, nickel alloys,suitable for all types of heat exchangers, such as seawater coolers, condensers, evaporators, heaters and reheaters.

Dextube’s heat exchanger tube program includes imperial and metric sizes, from outside diameter 6.35 mm up to 50.8 mm (1/4″ to 2″). Special sizes can be made to order. Our heat exchanger tubes are supplied in straight lengths up to 30 meters, or as U-bent tubes.

Process Method: Cold Drawn/Cold Rolled

Grades:

Austenitic: 304/L, 316L, 317L, 321, 347, 904L,

Martensite: 410,430, 405, 409, 439, 420, 444, 446

Duplex: S31803, S32205, S31500, S31200, S32304, S32750

Nickel Alloy:Alloy 400, Alloy 600, Alloy 625, Alloy 800, Alloy 825, Alloy 20, Alloy 28, Alloy C276;

Other grades can be offered on request.

Standards: A213/A269 A789/A790 EN 10216-5 TC1

Outside diameter range from 6.35-50.8mm

Wall thickness range from 0.71-3.81mm

Inspection & Test：

1. 100% PMI / Chemical analysis tests.

2.100% Dimension tests & 100% Visual examination

3. Tension test, flange test, hardness test, flattening test

4. 100% Eddy Test or Hydrostatic Test before bending and 100% Hydrostatic test after bending

5. Checking stress released heat treatment in bending area plus 300mm straight leg length after bending with agreement with clients.

Notes: all the tests and inspection need to provide with reports according to standard and test results.

U-BENDING / U bend Tubing / U Tube:

U-BENDING / U bend Tubing / U Tube heat exchangers comprise a U shaped tube fixed by flow baffles or tubes supports and placed in shell to control the fluid present in the exterior of the tube assembly. The fluid is guided into the tubes by a head assembly, which is fixed to the shell by bolts.

Bending Radius: From 1.5 * O.D (outside diameter) ,When ordering tubes with bending radius less than 1.5*OD, it is necessary to get the agreement with us.

Straight tubes maximum length (before bending): 35000 mm.

Leg length: min 1 meter, max. 16500 mm (for max r=1500mm)

Note: Other sizes are available upon agreement.

Heat treatment: stress relieved after u-bending (bending area plus 300mm for each leg).

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Our company since its inception, constantly regards product or service high quality as business life, continually improve creation technology, make improvements to product high-quality and consistently strengthen business total high-quality management, in strict accordance together with the national standard ISO 9001:2000 for professional factory for 304l Stainless Steel Round Tubing - Heat Exchanger Tubes – Dextube, The product will supply to all over the world, such as: Belgium , Greece , Ecuador , Custom orders are acceptable with different quality grade and customer's especial design. We are looking forward to establish the good and successful cooperation in business with long terms from the customers of all over the world.

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