201 Stainless Steel Tube and Pipe

1. Stainless seamless tube
2.Stainless welded tube

  • Specifications of Stainless Steel 201 Tubes:

    1. Standard: GB, ASTM, JIS, DIN
    2. Grade: 201,202,301, 321, 304, 304L, 316, 316L, 409, etc
    3. OD range: 8mm-279.4mm
    4. Wall thickness range: 0.3mm-30mm
    5. Length: max.18000mm or as demand
    6. Surface finish: Polishing (180#,220#,240#,320#400#,600#), Hairline, aid pickling No.1 and so on
    7. Manufacture technology: cold drawn/cold rolled
    8. Type: Seamless & Welded

    200 Series stainless steel is a kind of austenitic stainless steel. Mn and N are added to replace some part of Ni, but they still contain some proportion of Ni, Normally it contains 4% to 6% percent. Mn is used to stable austenitic stainless steel; N is used to increase the hardness. Therefore, 200 series stainless steel is widely used in the equipment or parts that need undertake high pressure and do not have a very requirement for corrosion resistance.

    Chemical composition:

    Grade and Main chemical composition
    Item C Si Mn P≤ S≤ Cr Mo Ni Other
    SUS201 ≤0.15 ≤1.00 5.5-7.5 0.06 0.03 16-18 - 3.5-5.5 N≤0.25
    SUS202 ≤0.15 ≤1.00 7.5-10.0 0.06 0.03 17-19 - 4.0-6.0 N≤0.25


    1. Raw material choices.

    All of raw stainless steel coils are from YUSCO, Baosteel, TISCO.
    From slitting to production, we care more about the tolerance and raw material mechanical parameters to guarantee the tube quality control.

    coil choices-shanghai yieh united corporation

    2. Various mold choices

    With years of development, shanghai Yieh United Corporation is able to produce various OD tubes with different thickness.

    mold choices-shanghai yieh united corporation

    For OD<50mm, Shanghai Yieh United Corporation has induced automatic welding machine. The daily production is 150 tons.

    tube production-shanghai yieh united corporation

    For OD>50mm,Shanghai Yieh United Corporation apply advantageous manual welding process.

    pipe production-shanghai yieh united corporation

    3. Surface Polishing.

    Shanghai Yieh United Corporation can offer different tube and pipe surface from No.1 to #400 surface based on customers' requirement.


    4. Pipe Surface Pickling.

    pickling processing

    5. Quality Control(Water pressure check)

    For every welded tube diameter <50mm, Shanghai Yieh United Corporation strictly test every welded tube in order to guarantee the quality for our customers.

    stainless steel tube checking 000001_ stainless steel tube checking 000002_
    stainless steel tube checking 000003_ stainless steel tube checking 000004_


  • Applications of Stainless Steel Pipes/Tubes:

    1).Petroleum, Chemical enterprise, super heater of boiler, heat exchanger

    petroleum application
    2).High temperature resistant transmission fluid pipe in power station

    heat exchange
    3).Decorative purpose.

    decorative tube-shanghai yieh united corporation
    4).For food processing.

    food grade application
    5) For machine spare parts manufacture.

    Application-shanghai Yieh United Corporation

  • For tubes, Shanghai Yieh United Corporation offer polishing and bending service.

    1. polishing surface(No.4, 8K)

    polished stainless steel tube

    2. Bending(based on customers' requirement)

    Stainless-Steel-Bending-Tube_Shanghai Yieh United Corporation

  • This is Shanghai Yieh United Corporation standarded package.

    package- shanghai yieh united corporation


  • Curently, Shanghai Yieh United Corporation has three different production lines including welding, cold drawing, and cold rolling.

    1. Welding.

    pipe production-shanghai yieh united corporation


    2. Cold drawin and Cold rolling for seamless stainless steel tube and pipe.

    Based on customers requirement, Shanghai Yieh United Corporation has two production lines.

    For OD<100 mm, cold rolling is applied to guarantee the surface and tolerance requirement.

    For OD> 100mm, cold rolling is applied to reach the tube diameter.

    cold drawing (1)_shanghai yieh united corporation

    The overall production Process:

    pipe production

  • Every batch from Shanghai Yieh United Corporation has been tested with meticulous experiment.

    test-shanghai yieh united corporation



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