Jiangyin Donghao Stainless Steel Tubing  
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Quality & Service

Quality Control




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


Mainly Qualifications

  • PED 97/23/EC By Lloyd's,
  • ISO 9001 - 2008 issued by Lloyd's,
  • Third Part Inspection Accepted according to EN 10204 3.2
  • ASME Boiler and Pressure Vessel Code Certificated Certificate Issued by TUV

  • Mainly Raw Material Supplier(Stainless Steel Round Bar):
    BAOSTEEL / TISCO / Yongxing Special Stainless Steel / Sandvik / Outokumpu / Nippon Steel


    At first, we purchase the best quality raw material for customers. Then testing and inspections ensure the Stainless Steel Tubes and Nickel Alloy Seamless Tubes quality with destructive and non-destructive tests according to standard and customer's special requirement.

    The inspection center of our company has all kinds of necessary inspection apparatus, mainly including Direct reading spectrometer (Made In Germany), Material testing machine, Hydraulic Testing machine, Air-under water pressure testing machine, Eddy current testing machine, Ultrasonic Testing machine, Huey testing machine, Flaring and Flattening test machine. View the inspection equipment...

    Third party inspection such as UEV, SGS, LR, MOODY, ITS, DNV,BV, Lloyd's Reg. of Shipping ,TüV ,GL as well as customer's stage-wise inspection are welcome.

    Inspection items conducted by our Donghao Stainless Steel Pipe

    Chemical Composition analyzing Direct Reading Spectrometer, PMI Test
    Metallographic test Microscopic test, Metallographic test,Macroscopic test,Grain Size
    Test of Mechanical property Room temperature Tension test, Hardness Testing, Impact test, Huey test
    Technological performance test Flaring test, Flattening test, Bend test, Hydraulic test, Expansion test, Air-under water test
    Non-destructive test Ultrasonic testing detecting, Eddy current inspection

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    Directory | Standard | Heat | Heat Exchanger | Temperature | Pressure | Corrosion | Hardness | Surface | Properties | Selection of Stainless Steel | Contact US

    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