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

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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" as well as theory of "quality the basic, have faith in the initial and administration the advanced" for Astm A269 Tp304l Steel Tube , 347h Stainless Steel Tube , Stainless Precision Tube , We will wholeheartedly welcome all clients in the industry both at home and abroad to cooperate hand in hand, and create a bright future together.
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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Our primary goal is to offer our clients a serious and responsible business relationship, providing personalized attention to all of them for Quality Inspection for Third Party Inspection Certificates - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Gabon , Amman, Vietnam , Since its foundation , the company keeps living up to the belief of "honest selling , best quality , people-orientation and benefits to customers. " We are doing everything to offer our customers with best services and best products . We promise that we'll be responsible all the way to the end once our services begin.
  • In China, we have purchased many times, this time is the most successful and most satisfactory, a sincere and realiable Chinese manufacturer!
    5 Stars By Julia from New Zealand - 2016.11.11 11:41
    This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Teresa from United Arab emirates - 2015.06.21 17:11
    
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