Jiangyin Donghao Stainless Steel Tubing  
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Why Choose Donghao Stainless Steel Pipe?




Qualification and Certificates
Production Equipment
Testing Equipement
Quality Control Systerm
Service Range and Procedure


Service Range and Procedure

Before-Sale Service

  • Feedback the customer inquiries within 24 hours.
  • Offer technical consulting service to the user for selecting proper Stainless Steel and Nickel Alloy material.
  • Samples offered with Free, until our customer is completely satisfied.
  • Service During Producing

  • Choose the best quality stainless steel material. From Yongxing/Walsin/BAOSTEEL/TISCO/Sandvik/Outokumpu
  • Manufacture the Stainless Steel and Nickel Alloy Tubes strictly according the client's requirement and Standard.
  • Supervise the Process of Production of the order, ensure to delivery on time.
  • Report the Stainless Steel Production Status Report Weekly by E-mail.
  • Main Testing Terms and Procedure:

  • 1. Heat Treatment and Solution Annealing / Bright Annealing
  • 2. Cutting to required length and deburring;
  • 3. Chemical Composition Analysis Test With 100% PMI and One tube from each heat by Direct Reading Spectrometer
  • 4. Visual Test and Endoscope Test for Surface Quality Test
  • 5. 100% Hydrostatic Test and 100% Eddy Current Test
  • 6. Ultrasonic Test subject to the MPS (Material Purchase Specification)
  • 7. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test
  • 8. Impact Test subject to Standard request
  • 9. Grain Size Test and Intergranular Corrosion Test
  • 10. Ultrasoic measuring of Wall Thickness
  • Marking & Packing

  • Marking according to MPS and Standard
  • Stainless Steel Tubes Ends with Caps according to PO
  • In Seaworthy Wooden Cases With Plastic Paper protect
  • In Plywood Cases With Plastic Paper Protect(Recommend, All Plywood Cases made by ourselves with lower cost.)
  • Steel Racks Package
  • Hexagonal packing in Bundles
  • Service During Shipment

  • Ensure the stainless steel and Nickel Alloy Seamless tubing with safe and proper package
  • Ensure the deliver time according the client's requirement
  • Ensure the shipment information be aware by client in time
  • After-Sale Service

  • Frequently have a good communicate with our customer.
  • Regularly visit our customer company.
  • Have a consultation with end user for feedback advice.
  • Improve the quality constantly so as to meet the requirement of our customer.


  • FAQ

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    Useful Tools:

    Metals weight Calculator
    Stainless Steel Weight Calculator
    Nickel Alloy Tubing Weight Calculator
    Sheet Plate Weight Calculator
    Hardness Values Conversion Calculator
    Hardness Conversion Calculator
    Length Weight Temperature Volume Pressure Conversion
    Pipe Working Pressure Calculation
    Pressure Conversion Converter Calculator
    Gauge Sizes - Wire Sheet Plate Tube
    Stainless Steel Pipe Schdule
    Nominal Pipe Size
    ANSI Pipe Chart

    Stainless Steel Tubing and Pipe:

    Heat Exchanger Tubes
    U Bend Stainless Steel Tubing
    Duplex Stainless Steel Pipe
    Boiler Tubes, Condenser Tubes
    Stainless Steel Seamless Pipes Corrugated Seamless Stainless Steel Pipe Tube
    Cold Drawn Bright Annealing Stainless Steel Tubes
    Heat resistant Stainless Steel Tubes
    Welded Stainless Steel Pipe
    Corrosion Resistant Stainless Steel Tube
    Corrosion Resistance of Stainless Steel Tubes
    Nickel Alloy Seamless Tubes:

    UNS N08020 2.4600 Nickel Alloy 20 Seamless Tubing
    UNS N02200 2.4066 200 Nickel Alloy Seamless Tubing
    UNS N04400 400 Nickel Alloy 2.4360 Nickel Alloy Tubing
    UNS N08800 800 Nickel Alloy Seamless Tubes
    UNS N08810 800H UNS N08810 Nickel Alloy Seamless Tubes
    UNS N08811 800HT Nickel Alloy Seamless Tubes
    UNS N08825 825 2.4858 Nickel Alloy Seamless Tubes
    UNS N06600 600 2.4816 Nickel Alloy Seamless Tubes
    UNS N06625 625 2.4856 Nickel Alloy Seamless Tubes
    UNS N10276 C-276 2.4819 Nickel Alloy Seamless Tubing
    Why Choose US?

    Production Equipment
    Testing Equipement
    Qualification and Certificates
    Quality Control Systerm
    Service Range and Procedure

    Contact US:
    sales@tubingchina.com