One of Hottest for Seamless Boiler Tube - Duplex Seamless tube – Donghao Metal Group

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We know that we only thrive if we can guarantee our combined price tag competiveness and top quality advantageous at the same time for 304l Stainless Tubing , Aisi 321 Stainless Steel Pipe , Third Party Inspection Certificates , We take quality as the foundation of our success. Thus, we focus on the manufacture of the best quality products. A strict quality management system has been created to ensure the quality of the products.

One of Hottest for Seamless Boiler 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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Our advantages are reduced prices,dynamic product sales workforce,specialized QC,solid factories,superior quality services for One of Hottest for Seamless Boiler Tube - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Swiss , France , Canberra , The credibility is the priority, and the service is the vitality. We promise we have now the ability to offer excellent quality and reasonable price items for customers. With us, your safety is guaranteed.

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