Factory made hot-sale U Heat Exchanger Tube - Duplex Seamless tube – Donghao Metal Group

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Our business puts emphasis over the administration, the introduction of talented staff, plus the construction of team building, attempting hard to boost the standard and liability consciousness of personnel customers. Our corporation successfully attained IS9001 Certification and European CE Certification of 321 347h Stainless Steel Tubing , Stainless Seamless Steel Pipe , Dished Head , Our products enjoy good popularity among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

Factory made hot-sale U Heat Exchanger Tube - Duplex Seamless tube – Donghao Metal Group Detail:

As the duplex and super duplex stainless steel has both the advantages of ferritic stainless steel and the austenitic stainless steel, they are widely used to produce heat transferring tubing for petrochemical industry, sea water treatment…. in aggressive acidic, chloride containing environments. DMG supply duplex tubes with high quality.

Delivery Condition: Annealed & Pickled, Annealed & Pickled + Polished

Grades: S31803, S32205, S32750, S32550, S32760, Other grades can be offered on request.

Standards:

ASTM/ASME A/ SA789 Seamless and welded Ferritic /Austenitic Stainless Steel Tubing for General Service

ASTM/ASME A/SA790 Seamless and welded Ferritic /Austenitic Stainless steel pipe

Outside diameter range from 12-76.2mm

Wall thickness range from 0.71-12mm

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.

Length: Random Length / Fixed Length

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The key to our success is "Good Products Good quality, Reasonable Value and Efficient Service" for Factory made hot-sale U Heat Exchanger Tube - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Georgia , Romania , Ukraine , We will supply much better products with diversified designs and professional services. We sincerely welcome friends from over the world to visit our company and cooperate with us on the basis of long-term and mutual benefits.

Astm A312 Tp321 Seamless Pipe