black square steel pipe factory

black square steel pipe factory Featured Image
  • black square steel pipe factory
  • black square steel pipe factory
  • black square steel pipe factory
  • black square steel pipe factory
  • black square steel pipe 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 fast delivery.

  • Thickness: 0.5- 60 mm
  • OD(Outer diameter): square 10*10-1000*1000mm rectangular:10*15 800*1100mm
  • Certification: CE,LEED,BV,PHD&EPD,BC1,EN 10210,EN10219,ISO9000,ASTMA500,ASTM A501,AS1163,JIS G3466
  • Surface Treatment: REQUEST
  • Tolerance: as required
  • Brand: YUANTAI DERUN
  • Length: 3-12M according to client requirement
  • Standards: ASTM A500/A501,EN10219/10210,JIS G3466,GB/T6728/3094 AS1163, CSA G40.20/G40.21
  • 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
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    Product Detail

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    PRODUCT INTRODUCTION

    Also known as square and rectangular cold-formed hollow section steel, short for square tube and rectangular tube

    PROCESS CLASSIFICATION

    Square tubes are divided into hot-rolled seamless square tubes, cold-drawn seamless square tubes, extruded seamless square tubes and welded square tubes according to the production process.
    The welded square tube is divided into
    1. According to process - electric arc welding square tube, resistance welding square tube (high frequency, low frequency), gas welding square tube, furnace welding square tube
    2. It is divided into straight welded square tubes and spiral welded square tubes according to the weld seam.

    MATERIAL CLASSIFICATION

    Square tubes are divided into plain carbon steel square tubes and low alloy square tubes by material.
    1. Ordinary carbon steel is divided into Q195, Q215, Q235, SS400, 20 # steel, 45 # steel, etc.
    2. Low alloy steel is divided into Q345, 16Mn, Q390, ST52-3, etc.

    PRODUCTION STANDARD CLASSIFICATION

    Square tubes are divided into national standard square tubes, Japanese standard square tubes, English standard square tubes, American standard square tubes, European standard square tubes and non-standard square tubes according to production standards.

    SECTION SHAPE CLASSIFICATION

    Square tubes are classified according to section shape:
    1. Simple section square tube: square square tube, rectangular square tube.
    2. Square tubes with complex sections: flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, and special-shaped square tubes.

    SURFACE TREATMENT CLASSIFICATION

    Square tubes are divided into hot-dip galvanized square tubes, electro-galvanized square tubes, oiled square tubes and pickled square tubes according to surface treatment.

    WALL THICKNESS CLASSIFICATION

    Square tubes are classified by wall thickness: ultra-thick square tubes, thick square tubes and thin square tubes.

    EXECUTIVE STANDARDS

    GB/T6728-2002, GB/T6725-2002, GBT3094-2000, JG 178-2005, ASTM A500 JIS G3466, EN10210 or technical agreement.
    GB/T3094-2000 (national standard) cold-pressed special-shaped rectangular tube
    GB/T6728-2002 (national standard) cold-formed hollow section steel for structure
    ASTM A500 (American Standard) Cold-formed carbon steel welded rectangular tubes and seamless rectangular tubes with circular and special-shaped sections for structural purposes
    EN10219-1-2006 (European Standard) Non-alloy and fine-grained cold-formed welded hollow structural profiles
    JIS G 3466 (Japanese standard) Angle rectangular tube for general construction

    USE:

    Square tubes are used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation support, steel structure engineering, power engineering, power plant, agricultural and chemical machinery, and glass curtain wall

    Welcome to contact Yuantai Derun, e-mail: sales@ytdrgg.com , real-time connection factory inspection or factory visit!

    Specification of square and rectangular hollow sections

    OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM) OD(MM) THICKNESS(MM)
    20*20 1.3 60*120 80*100 90*90 1.50 180*180 3 300*800 400*700 550*550 500*600
    1.4 1.70 3.5-3.75 9.5-9.75
    1.5 1.80 4.5-4.75 11.5-11.75
    1.7 2.00 5.5-7.75 12-13.75
    1.8 2.20 9.5-9.75 15-50
    2.0 2.5-4.0 11.5-11.75
    20*30 25*25 1.3 4.25-4.75 12.0-25.0
    1.4 5.0-6.3 100*300 150*250 200*200 2.75 300*900 400*800 600*600 500*700
    1.5 7.5-8 3.0-4.0 9.5-9.75
    1.7 50*150 60*140 80*120 100*100 1.50 4.5-9.75 11.5-11.75
    1.8 1.70 11.5-11.75 12-13.75
    2.0 2.00 12.5-12.75 15-50
    2.2 2.20 13.5-13.75
    2.5-3.0 2.5-2.75 15.5-30
    20*40 25*40 30*30 30*40 1.3 3.0-4.75 150*300 200*250 3.75 300*1000 400*900 500*800 600*700 650*650
    1.4 5.5-6.3 4.5-4.75
    1.5 7.5-7.75 5.5-6.3 9.5-9.75
    1.7 9.5-9.75 7.5-7.75 11.5-11.75
    1.8 11.5-16 9.5-9.75 12-13.75
    2.0 60*160 80*140 100*120 2.50 11.5-11.75 15-50
    2.2 2.75 13.5-30
    2.5-3.0 3.0-4.75 200*300 250*250 3.75 400*1000 500*900 600*800 700*700
    3.25-4.0 5.5-6.3 4.5-4.75
    25*50 30*50 30*60 40*40 40*50 40*60 50*50 1.3 7.5-7.75 5.5-6.3 9.5-9.75
    1.4 9.5-16 7.5-7.75 11.5-11.75
    1.5 75*150 2.50 9.5-9.75 12-13.75
    1.7 2.75 11.5-11.75 15-50
    1.8 3.0-3.75 12-13.75
    2.0 4.5-4.75 15.5-30
    2.2 5.5-6.3 200*400 250*350 300*300 4.5-6.3 500*1000 600*900 700*800 750*750
    2.5-3.0 7.5-7.75 7.5-7.75 9.5-9.75
    3.25-4.0 9.5-16 9.5-9.75 11.5-11.75
    4.25-4.75 80*160 120*120 2.50 11.5-11.75 12-13.75
    5.0-5.75 2.75 12-13.75 15-50
    5.75-6.3 3.0-4.75 15.5-30
    40*80 50*70 50*80 60*60 1.3 5.5-6.3 200*500 250*450 300*400 350*350 5.5-6.3 500*1100 600*900 700*800 750*750
    1.5 7.5-7.75 7.5-7.75 9.5-9.75
    1.7 9.5-9.75 9.5-9.75 11.5-11.75
    1.8 11.5-20 11.5-11.75 12-13.75
    2.0 100*150 2.50 12-13.75 15-50
    2.2 2.75 15.5-30
    2.5-3.0 3.0-4.75 280*280 5.5-6.3 600*1100 700*1000 800*900 850*850
    3.25-4.0 5.5-6.3 7.5-7.75 9.5-9.75
    4.25-4.75 7.5-7.75 9.5-9.75 11.5-11.75
    5.0-6.0 9.5-9.75 11.5-11.75 12-13.75
    40*100 60*80 70*70 1.3 11.5-20 12-13.75 15-50
    1.5 100*200 120*180 150*150 2.50 15.5-30
    1.7 2.75 350*400 300*450 7.5-7.75 700*1100 800*1000 900*900
    1.8 3.0-7.75 9.5-9.75 11.5-11.75
    2.0 9.5-9.75 11.5-11.75 12-13.75
    2.2 11.5-20 12-13.75 15-50
    2.5-3.0 100*250 150*200 3.00 15.5-30
    3.25-4.0 3.25-3.75 200*600 300*500 400*400 7.5-7.75 800*1100 900*1000 950*950
    4.25-4.75 4.25-4.75 9.5-9.75 11.5-11.75
    5.0-6.3 9.5-9.75 11.5-11.75 12-13.75
    50*100 60*90 60*100 75*75 80*80 1.3 11.5-11.75 12-13.75 15-50
    1.5 12.25 15.5-40
    1.7 140*140 3.0-3.75 300*600 400*500 400*400 7.5-7.75 900*1100 1000*1000 800*1200
    1.8 4.5-6.3 9.5-9.75
    2.0 7.5-7.75 11.5-11.75 20-60
    2.2 9.5-9.75 12-13.75
    2.5-3.0 11.5-25 15.5-40
    3.25-4.0 160*160 3.00 400*600 500*500 9.5-9.75 1100*1000 1100*1100
    4.25-4.75 3.5-3.75 11.5-11.75 20-60
    5.0-5.75 4.25-7.75 12-13.75
    7.5-8 9.5-25 15.5-40
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    customized-large-diameter-square-steel-pipe_03
    customized-large-diameter-square-steel-pipe_04

    PRODUCT ADVANTAGES

    01  DIRECT TRANSACTION

        We have been specialized  in

        producing steel pipes for 21 years,yuantai derun group are the largest

        steel hollow section manufacturer in China

    square-pipe-advantage_03
    square-pipe-advantage_04
    • 02  COMPLETE SPECIFICATIONS

      OD(outer diameter):10*10-1000*1000MM    10*15-800*1200MM

       Wall Thickness:0.5-60mm

       Length:0.5-24M or according requirement

      Surface treatment:bare oiled painted galvanized

    3  CERTIFICATION IS COMPLETE

    Tianjin Yuantai derun steel pipe manufacturing group

    can produce steel pipe products of world stardard,such as

    European standard EN10210,EN10219,

    American standard ASTM A500/501,

    Japanese standard,JIS G3466

    Astralian standard, AS1163

    natinal standard GB/T6728,GB/T9711,GB/T3094,GB/T3091

    and so on.

    square-pipe-advantage_07
    square-pipe-advantage_08

    04 LARGE INVENTORY
    Common specifications perennial inventory of

    200000 tons.

    Square steel hollow section,

    rectangular steel hollow section,

    circular steel hollow section

    HOT PRODUCTS

    CERTIFICATE SHOW

    EQUIPMENT DISPLAY

    INDEPENDENT LABORATORY

    OUR STRENGTHS

    THE ONLY

    rectangular tube manufacturer selected into the top ten steel tube brands in China

    4

    THE QUALIFIED RATE OF PRODUCTS >100%

    PACKAGING 

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    453178610663829382b8b7cbbfe9b9e

    FAQ

    Q1: Are you trading company or manufacturer ?

    A: We are factory.

    Q2: How long is your delivery time?

    A: Generally it is 5-10 days if the goods are in stock. or it is 30 days if the goods are not in stock, it is according to quantity.

    Q3:Do you provide samples ? is it free or extra ?

    A: Yes, we could offer the sample for free charge with the cost of freight paid by customer.

    Q4: What is your terms of payment ?

    A: Payment<=1000USD, 100% in advance. Payment>=1000USD 30% T/T in advance ,balance before shippment.If you have another question, pls feel free to contact us as below

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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.

    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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