Large square and rectangular tube (round to square)

Short Description:

Advantage:
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.

  • Thickness: 0.5- 60 mm
  • OD(outer diameter): square:10*10-1000*1000mm rectangular:10*15-800*1100mm
  • Section Shape: Square OR rectangular
  • Place of Origin: Tianjin, China
  • Application: Structural type
  • Technique: ERW,LSAW,SEAMLESS
  • Certification: CE,LEED,BV,PHD&EPD,BC1,EN10210,EN10219,ISO9000,ASTM A500,ASTM A501,AS1163,JIS G3466
  • Surface Treatment: REQUEST
  • Special Pipe: Thick Wall Pipe
  • Tolerance: as required
  • Brand: YUANTAI DERUN
  • Length: 3-12M according to client requirement
  • Standards: Hollow section: ASTM A500/A501,EN10219,EN10210,JIS3466,GB/T6728,GB/T3094
  • Materials: Gr.A,Gr.B,Gr.C,S235,S275,S355,S420,S460,A36,SS400,Q195,Q235,Q345
  • MOQ: 2-5 Tons
  • Surface: Customers't Requirement
  • Delivery Time: 7-30 Days
  • Payment method: TT/LC
  • Product Detail

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    As we all know, box column is widely used in large steel structure buildings at home and abroad, and it has been popularized for many years abroad. Nowadays, more and more construction and design units use large rectangular tube instead of box column structure. With the increasing thickness of the former, it will fully cover the use of domestic box column in the near future.

    At present, large square tube is extruded into square tube by submerged arc welding process with special equipment. Submerged arc welding is one of the mechanical welding methods with high production efficiency. Its full name is automatic submerged arc welding, also known as automatic arc welding under flux layer. The round to square tube made by this process has the following advantages:

       1.High production efficiency

    On the one hand, the conductive length of welding wire is shortened, and the current and current density are increased, so the arc penetration and welding wire deposition efficiency are greatly improved( On the other hand, due to the heat insulation effect of flux and slag, there is basically no heat radiation loss on the arc, and the spatter is also less. Although the heat loss for melting flux is increased, the total thermal efficiency is still greatly increased.

       2.High weld quality

    The welding parameters can be kept stable by automatic adjustment. The requirements for welder's technical level are not high. The weld composition is stable and the mechanical properties are good.

      3.Good working conditions
    In addition to reducing the labor intensity of manual welding operation, it has no arc radiation, which is the unique advantage of submerged arc welding.

      4.Low processing cost
    Usually, the processing cost of box column is as high as 1000 to 2000 yuan, while the processing cost of large rectangular tube is only a few hundred yuan, which is very cost-effective.

      5.Safer to use
    Compared with the two, the welding quantity of rectangular tube is much less than that of box column, and the welding quantity is greatly reduced.
    (eg: the new landmark of Guangdong, Hong Kong and Macao, the 128 meter high super Ferris wheel "Shenzhen light" in Shenzhen, the main columns of Google new office building in Singapore, etc. are all large rectangular tube products that our group has remodeled from the factory.)

     

    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,E-mail:sales@ytdrgg.com, and Real time connection inspection plant or factory visit!

    square and rectangular hollow section               Unit: mm
    Non-standard size standard size thickness non-standard size standard size thickness
        1.0     1.5
        1.2     1.7
        1.3 40*135 50*150 2.0
    19*19 20*20 1.4 50*140 60*140 2.2
        1.5 60*130 80*120 2.5~5.0
    153   1.7 75*125 100*100 5.25~6.0
        2.0     6.5~9.75
        1.0 395   11.5~16
        1.2 50*160   2.5
        1.3 60*150 60*160 2.75
      25*25 1.4 60*180 80*140 3.0~4.0
        1.5 65*180 80*160  4.25~4.75
    153 20*30 1.7 70*150 100*150 5.25~6.0
      1.8 90*150 120*120 6.5~7.75
      2.0 90*160 110*110 9.5~9.75
      2.2 100*120 120*180 10.5~11.75
        2.5~3.0 100*125 125*125 12.5~15.75
        1.0 100*140 470 16~~30
      20*40 1.2 60*170 75*150 2.5
    20*50 1.3 70*16070*200 100*200 2.75
    25*40 1.4 80*150 140*140 3.0~5.75
    32*32   1.5 80*180 150*150 7.5~9.75
    30*30 1.7 127*127 130*130 10.5~11.75
    35*35 1.8   570 12.5~15
    30*40 2.0 60*200 100*250 2.5
         2.2 60*220 160*160 2.75~3.25
      2.5~3.0 80*200 180*180 3.5~5.0
    232 3.5~3.75 80*220 140*180 5.25~7.75
      1.2 100*180 150*170 9.5~11.75
    1.3 120*160 150*180 12.5~15.75
      1.4 120*200 150*200 16~~30
    20*60 25*50 1.5 100*350   2.75
    20*80 30*50 1.7 125*250   3.0~3.25
    25*65 30*60 1.8 130*250 100*300 3.5~9.75
    30*70 40*40 2.0 135*135 150*250 11.5~11.75
    35*60 40*50 2.2 140*240 200*200 12.5~14.75
    38*38 40*60 2.5~4.0 150*220 200*250 15.5~15.75
    45*45 50*50 4.25~5.0 225*225 770 16~~30
    5.25~5.75 100*400 150*300 3.5~4.0
    153   5.75~6.0 130*300 200*300 4.5~7.75
    1.3 150*350 250*250 9.5~11.75
      1.4 200*280 180*300 12.5~14.75
    30*100 40*80 1.5 220*220 1010 15.5~17.75
    40*70 40*100 1.7 200*350 200*400 4.75~11.75
    40*90 50*70 1.8 250*350 250*300 12.5~14.75
    50*60 50*80 2.0   300*300 15.5~17.75
    50*75 60*60 2.2   200*500 4.75~11.75
    50*90 60*80 2.5~4.0 300*320 250*450 12.5~14.75
    55*55 70*70 4.25~5.0 300*350 300*400 15.5~17.75
    65*65   5.25~5.75   350*350 18~~30
    232 5.75~6.0 200*450 200*600 4.5~5.75
      1.3 250*400 280*280 6.5~11.75
    40*120 50*100 1.5 250*500 300*500 12.5~14.75
    40*140 60*90 1.7 300*450 350*400 15.5~17.75
    50*110 60*100 1.8   400*400 18~~30
    50*120 60*120 2.0 300*650 300*600 4.5~7.75
    50*125 75*75 2.2   400*500 9.5~9.75
    70*100 80*80 2.5~4.0 300*700 400*600 11.5~13.75
    85*85 80*100 4.25~5.0   450*450 14.5~15.75
      90*90 5.25~5.75 320*320 500*500 16.5~17.75
    312 7.5~9.75     18~~30
    1300*1300  70~80
    The length, width and thickness of other specifications can be customized 

    PRODUCT SHOW:

    FACTORY WORKSHOP SHOW

    PROCESS FLOW DIAGRAM OF RECTANGULAR TUBE

    PROCESS-FLOW-DIAGRAM-OF-RECTANGULAR-TUBE-1

    MANUFACTURING EQUIPMENT

    production-machinery-1

    FACTORY WORKER SHOW

    Workshop diagrams

    Workmates shine and heat in different posts, fighting heaven and earth

    Spiral welded steel pipe-9

    In Yuantai's workshop, The weaker sex is no inferior to the male.

    Black Hollow Section HWS 19 19-500 500

    Consistent persistence has achieved a single champion of a category

    微信图片_20210602114928-1

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

    DELIVERY AND LOGISTICS

    Packing & Delivery-1

    CUSTOMER TEAM PRESENTATION

    CUSTOMER-TEAM-PRESENTATION-2
    CUSTOMER-TEAM-PRESENTATION-1
    CUSTOMER-TEAM-PRESENTATION-3
    CUSTOMER-TEAM-PRESENTATION-4
    CUSTOMER-TEAM-PRESENTATION-5
    CUSTOMER-TEAM-PRESENTATION-6

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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.

    Website: https://www.ytdrintl.com/

    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.

    Whatsapp:+8613682051821

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