1 inch round pipe circular hollow section GI CHS

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 fast delivery.

  • OD(outer diameter): 22mm-112mm
  • Thickness: 0.75- 3 mm
  • Certification: CE,LEED,BV,PHD&EPD,DNV,BC1,EN10210/10219,ISO9000,ASTMA500/A501,AS1163,JIS G3466
  • Standards: ASTM A500/A501,EN10219/10210,JIS G3466,GB/T6728/3094 AS1163, CSA G40.20/G40.21,UL797
  • Materials: Gr.A/B/C,S235/275/355/420/460,A36,SS400,Q195/235/355,STKR400/490,300W/350W
  • MOQ: 2-5 Tons
  • Delivery Time: 7-30 Days
  • Payment method: TT/LC
  • Product Detail




    Product Tags

    Round pipe is a steel with two ends open and hollow concentric circle section, and its length is larger than the surrounding steel. It can be used in pipeline, thermal equipment, machinery industry, petroleum geological drilling, container, chemical industry and special purposes.

    Basic Information

    circular hollow section

    Method of representation

    Round tube specifications are expressed in terms of external dimensions (such as outer diameter or side length) and inner diameter and wall thickness. They range in size from very small capillaries to large round steel tubes with diameters of several meters.

    Main Use

    Round pipe can be used in pipeline, thermal equipment, machinery industry, petroleum geological drilling, container, chemical industry and special purposes.

    Manufacturing process


    According to the production method can be divided into seamless round pipe and welded round pipe.

    Seamless steel pipe manufacturing process

    Tube billet heating - inspection - skin - - - perforation, pickling, grinding, dry lubrication, welding head, cold drawing, solid solution treatment, pickling, pickling passivation - inspection

    Welding steel pipe manufacturing process

    Strip steel -- Inspection -- Shear -- sizing -- Qualitative -- welding -- grinding (seamless)-- sizing -- inspection


    Welcome everyone to cantact Yuantai Derun,E-mail:sales@ytdrgg.com, and Real time connection inspection plant or factory visit!


    Product Name

    circular hollow section



    Wall Thickness: 0.5-50mm

    Length: 1-24m or according to clients` requirements.

    Steel material

    GrA, Gr B, GrC, SS330, S275J0H;  S355JR ; S355J0H; S355J2H.SS400,S235JR,S235JO,S235J2,S420,S460,


    EN10219, EN10210, GB/T6728, GB/T3094, GB/T3091,JIS G3466,UL797


    Used For Structure, Accessorize And Construction


    1) Plain

    2) Beveled

    3) Thread

    End protector

    1)  Plastic pipe cap

    2)  Iron protector

    Surface Treatment






    Section Shape



    With Hydraulic Testing, Eddy Current , Infrared Test


    1) Bundle,

    2) In Bulk

    3) Bags

    4) Clients' Requirements


    1)  Container

    2)  Bulk carrier

    Port of Shipment

    Xingang, China


    L/C   T/T



    Certificate display


    Who we are?

    China's largest square tube manufacturing enterprises,China's top 500 manufacturing companies,The annual production capacity reaches 10 million tons.There are 72 steel pipe production lines.


    What do we do?

    Square tube, round pipe,galvanized square tube, spiral welded tube, double-sided submerged arc welded tube, hot rolled strip.Committed to providing excellent products and services for steel pipe users.


    How to order?

    Commissioner will quote according to your use specifications, and then you are satisfied with the price and quality of the intention to pay in advance, and then we begin to schedule production, product qualified after inspection, packing, balance, receive.

    Why choose YuantaiDerun?

    1. We have European standard, American standard, Japanese standard and other full series of product certification, from raw materials to finished products through 219 to test procedures, neither let a unqualified steel pipe into the market, excellent quality, won the market praise.

    2. Preferential price, because it is factory direct sales, we will sell to you with the thinnest profit, to achieve high quality and low price products

    3. Strong supply capacity and production capacity, annual output of more than 5 million tons, no matter how much your demand, guarantee the delivery time

    4. More than 20 years of manufacturing experience and cooperation experience in major projects all over the world, give your order double insurance

    Delivery guarantee
    Price favorable
    Good reputation


    Tianjin YuantaiDerun group, founded in 2002, since its founding has been insist to do steel tube of the rectangular tube structure, since so many years, our party rectangular tubes from small furniture, use the door window, slowly do engineering machinery, equipment manufacturing, the main framework, up to now we developing the steel structure building, especially in recent years, pushing the prefabricated steel structure residential building,In the whole steel structure system, there are more applications for this industry to open a new market space.Then we launched in 2018 established the torque tube industry development and cooperation innovation alliance, behind we also invited by tianjin capital, Beijing university of architecture and so on some of the colleges and universities, and some scientific research institutions, together to come in to the platform and make the industry chain, to do the production, study and research, with a joint, from two aspects of the standardization and intelligent manufacturing,Bring something new to the industry


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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.


    E-mail :sales@ytdrgg.com

    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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