Factory wholesale S31803 Tube - Duplex Seamless tube – Donghao Metal Group

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We have many excellent staff members good at marketing, QC, and dealing with kinds of troublesome problem in the production process for Stainless Steel Seamless Tubes , Tp439 Tube , T91 Tube , We believe in quality over quantity. Before export of the hair there is strict quality control check during treatment as per international quality standards.

Factory wholesale S31803 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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We retain bettering and perfecting our goods and service. At the same time, we perform actively to do research and enhancement for Factory wholesale S31803 Tube - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Rio de Janeiro , Jamaica , Tajikistan , 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.

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