China Manufacturer for Tp304/316l/321 Stainless Steel - Duplex Seamless tube – Donghao Metal Group

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We attempt for excellence, support the customers", hopes to become the top cooperation team and dominator enterprise for staff, suppliers and shoppers, realizes worth share and continual marketing for Wind Tower Flanges , Stainless Steel Water Pipe , Stainless Steel Hollow Bar , Excellent quality, competitive prices, prompt delivery and dependable service are guaranteed Kindly let us know your quantity requirement under each size category so that we can inform you accordingly.

China Manufacturer for Tp304/316l/321 Stainless Steel - 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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"Based on domestic market and expand abroad business" is our progress strategy for China Manufacturer for Tp304/316l/321 Stainless Steel - Duplex Seamless tube – Donghao Metal Group, The product will supply to all over the world, such as: Anguilla , Algeria , Suriname , Providing Quality Items, Excellent Service, Competitive Prices and Prompt Delivery. Our products and solutions are selling well both in domestic and foreign markets. Our company is trying to be one important suppliers in China.

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