China OEM Astm A312 Tp321 Seamless Pipe - Duplex Seamless tube – Donghao Metal Group

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To be a result of ours specialty and repair consciousness, our corporation has won a good popularity amid consumers everywhere in the environment for 2205 Super Duplex Steel , Stainless Steel Heater Exchanger , Tp316/316lseamless Stainless Steel Pipes , We sincerely welcome customers from both at home and abroad to come to negotiate business with us.

China OEM Astm A312 Tp321 Seamless Pipe - 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 growth depends to the superior products ,great talents and repeatedly strengthened technology forces for China OEM Astm A312 Tp321 Seamless Pipe - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Finland , Mali , Ottawa , The working experience in the field has helped us forged a strong relations with customers and partners both in domestic and international market. For years, our products and solutions have been exported to more than 15 countries in the world and have been widely used by customers.

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