Black Welded Steel Pipes Chinese Factory

Short Description:

1. 100% after-sales quality and quantity assurance.
2. Professional sales manager quickly reply within 24 hours.
3. Large Stock for regular sizes.
4. Free sample 20cm high quality.
5. Strong produce capability and capital flow.

  • Standard: API, ASTM, API 5L, ASTM A106, ASTM A53
  • Thickness: 0.5 - 60 mm
  • Outer Diameter: 10.3 - 2032mm
  • Application: Fluid Transportation or other industry
  • Certification: API 5L,API 5CT
  • Tolerance: as requirement
  • Processing Service: Bending, Welding, Cutting
  • Grade: API X42 X52 X60 X65 X70 GrA GrB GrC
  • Shape: Round
  • Place of Origin: Tianjin, China
  • Technique: Cold Rolled
  • Surface Treatment: Black Painting
  • Alloy Or Not: Non-Alloy
  • End protector: Reqeust
  • Length: 5.8m 6m 12m or as required
  • Secondary Or Not: First-class Meterial
  • Supply Ability: 400000 Ton/Tons per Year
  • Product Detail




    Product Tags

    With an annual output of 5 million tons, Yuantai Derun is the largest ERW square pipe, rectangular pipe, hollow pipe, galvanized pipe and spiral welded pipe manufacturer in China. Annual sales reached $15 billion. Yuantai Derun has 59 black ERW pipe production lines, 10 galvanized pipe production lines and 3 spiral welded pipe production lines. Square pipe 20 * 20 * 1mm to 500 * 500 * 40MM, rectangular steel pipe 20 * 30 * 1.2mm to 400 * 600 * 40MM, spiral pipe Ø 219-1420mm can be made of steel grades from Q (s) 195 to Q (s) 345B / gr.a-gr.d. Yuantai Derun can produce square rectangular tubes according to ASTM A500, JIS g3466, en10219, din2240 and as1163. Yuantai Derun has the largest square rectangular tube inventory in China, which can meet the direct purchasing demand of customers.

    Welcome everyone to cantact Yuantai Derun,, and Real time connection inspection plant or factory visit!



    Standard: API, ASTM
    Certification: API
    Thickness: 0.5 – 60 mm
    Outer Diameter: 10.3 – 2032 mm
    Alloy Or Not: Non-alloy
    Secondary Or Not: Non-secondary
    Material: A53,A106
    Application: Hydraulic Pipe
    fixed length: 6 meter,5.8meter
    Technique: Cold Drawn
    Packaging Details: in bundle,plastic
    Delivery Time: 7-30days


    Raw material guarantee

    The steel pipe manufacturing raw materials of the company come from Shougang, Baotou Steel, xintiangang, China Railway, Rongcheng steel, Jinxi steel and other large-scale well-known steel manufacturing enterprises in China. The products are from Shougang Group, Baotou Steel Group, new Tiangang Group, Cangzhou Iron and steel equipment manufacturing materials, Rongcheng iron and steel, Jinxi iron and steel and other global large-scale well-known steel manufacturing enterprises.

    Location of Shougang

    Location of Shougang

    Baogang external view

    Baogang external view

    Location of Hegang

    Location of Hegang

    New Tiangang external view

    New Tiangang external view

    Location of China Railway

    Location of China Railway

    Location of West Tianjin

    Location of West Tianjin


    Black Hollow Section HWS 19 19-500 500

    Time can change everything, but time may not change everything, for example, the initial heart

    Consistent persistence has achieved a single champion of a category

    Spiral welded steel pipe-9

    Women are no inferior to men.

    Workshop diagrams

    The quality inspector's eyes can hold a desert, but they can't hold a grain of sand




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  • The company attaches great importance to the quality of products, invests heavily in the introduction of advanced equipment and professionals, and goes all out to meet the needs of customers at home and abroad.
    The content can be roughly divided into: chemical composition, yield strength, tensile strength, impact property, etc
    At the same time, the company can also carry out on-line flaw detection and annealing and other heat treatment processes according to customer needs.



    Tianjin YuantaiDerun Steel Tube Manufacturing Group Co., Ltd. is a steel pipe factory certified by EN/ASTM/ JIS specializing in the production and export of all kinds of square rectangular pipe, galvanized pipe, ERW welded pipe, spiral pipe, submerged arc welded pipe, straight seam pipe, seamless pipe, color coated steel coil, galvanized steel coil and other steel products.With convenient transportation, it is 190 kilometers away from Beijing Capital International Airport and 80 kilometers away from Tianjin Xingang.


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