Quality Inspection for Third Party Inspection Certificates - Duplex Seamless tube – Donghao Metal Group

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carry on to boost, to guarantee products excellent in line with market and consumer standard specifications. Our enterprise has a quality assurance system are actually established for Third Party Inspection Certificates , Stainless Steel Hollow Bar , Astm A335 P11 Alloy Steel Tube , We welcome new and old shoppers to make contact with us by telephone or mail us inquiries by mail for foreseeable future company associations and attaining mutual achievements.
Quality Inspection for Third Party Inspection Certificates - 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


Product detail pictures:

Quality Inspection for Third Party Inspection Certificates -
 Duplex Seamless tube – Donghao Metal Group detail pictures

Quality Inspection for Third Party Inspection Certificates -
 Duplex Seamless tube – Donghao Metal Group detail pictures

Quality Inspection for Third Party Inspection Certificates -
 Duplex Seamless tube – Donghao Metal Group detail pictures


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We depend on sturdy technical force and continually create sophisticated technologies to meet the demand of Quality Inspection for Third Party Inspection Certificates - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Montpellier , Singapore , Palestine , You can let us know your idea to develop unique design for your own model to prevent too much similar parts in the market! We will provide our best service to satisfy all your needs! You should contact us right away!
  • The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Matthew from Chile - 2015.06.28 19:27
    Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Edith from Hanover - 2016.02.28 14:19
    
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