Basic Info.
Model NO.
Square and rectangular steel pipe
After-sales Service
Support
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape
Square and Rectangulatr
Length
3-12m According to Client Requirement
Od-Square
10*10mm-1000*1000mm
Od-Rectangular
10*15mm-800*1100mm
Technology
ERW, LSAW, SSAW, Seamless
Materials
Gr.a/B/C, S235/275/355/420/460, A36, Ss400
Standards
Hollow Section:ASTM A500/A501, En10219/10210
Oiled or Non-Oiled
Non-Oiled
Processing Service
Welding, Punching, Cutting, Bending, Decoiling
Certification
CE, LEED, BV, Phd&EPD, Bc1, En10210, En10219
Product Description
Our Adavantage:
√ Quick reply within 24 hours.
√ Large Stock for regular sizes.
√ Free sample high quality.
√ 100% after-sales quality and quantity assurance. Product Parameters
O.D mm | W.T mm | O.D mm | W.T mm | O.D mm | W.T mm | O.D mm | W.T mm |
20*20 | 1.3 | 60*120 80*100 90*90 | 1.5 | 180*180 | 3.0 | 300*800 400*700 550*550 500*600 | |
1.4 | 1.7 | 3.5-3.75 | 9.5-9.75 |
1.5 | 1.8 | 4.5-4.75 | 11.5-11.75 |
1.7 | 2.0 | 5.5-7.75 | 12-13.75 |
1.8 | 2.2 | 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 | 12-25 | |
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 | 1.5 | 4.5-9.75 | 11.5-11.75 |
1.8 | 1.7 | 11.5-11.75 | 12-13.75 |
2.0 | 2.0 | 12.5-12.75 | 15-50 |
2.2 | 2.2 | 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 | 2.5 | 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 | 2.5 | 9.5-9.75 | 12-13.75 |
1.7 | 2.75 | 11.5-11.75 | 15-50 |
1.8 | 3.0-4.75 | 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 | 2.5 | 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*1000 700*900 800*800 | |
1.5 | 7.5-7.75 | 7.5-7.75 | 11.5-11.75 |
1.7 | 9.5-9.75 | 9.5-9.75 | 12-13.75 |
1.8 | 11.5-20 | 11.5-11.75 | 15-50 |
2.0 | 100*150 | 2.5 | 12-13.75 | |
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 | 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 | 2.5 | 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 | 3.0 | 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 | 4.25-7.75 | 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*500 450*450 | 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 | 3.0 | 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 | |
Product Details
Rectangular tube is a square section shaped steel made from Q235 hot-rolled or cold-rolled strip or coil steel as the base material, which is formed by cold bending and then high-frequency welded. Except for wall thickness increase, the corner size and edge flatness of hot-rolled thick walled square pipes reach or even exceed the level of resistance welding cold formed square pipes.What are the methods for distinguishing rectangular tubes?1. The identification method for rectangular tubes is fake and inferior, and rectangular tubes are prone to folding. Folding is a variety of creases formed on the surface of rectangular tubes, which often run through the longitudinal direction of the entire product. The reason for folding is due to the pursuit of high efficiency by fake and inferior manufacturers, which results in excessive reduction and the generation of ears. Folding occurs during the next rolling process, and the folded product will crack after bending, resulting in a significant decrease in the strength of the steel.
2. The identification method for rectangular tubes is that there are often pitted surfaces on the surface of the tubes. Pitted surface is a defect caused by severe wear and tear on the rolling groove, resulting in irregular unevenness on the steel surface. Due to the pursuit of profit by manufacturers of fake and inferior rectangular pipes, rolling grooves often exceeds the standard.
3. The identification method for rectangular tubes is that the surface of fake and inferior rectangular tubes is prone to scarring. There are two reasons: (1). The material of fake and inferior rectangular tubes is uneven and there are many impurities. (2) . Counterfeit and inferior manufacturers have rudimentary guide equipment that is prone to sticking steel.
4. The identification method for rectangular pipes is that the surface of fake and inferior materials is prone to cracks because its billet is made of adobe, which has many pores. During the cooling process, the adobe undergoes cracks due to thermal stress, and after rolling, there are cracks.The rectangular tube has no metallic luster and appears light red. There are two reasons why it is made of adobe. The rolling temperature of fake and inferior materials is not standard, a nd their steel temperature is visually measured, which makes it impossible to roll according to the specified austenite area, and the performance of the steel cannot meet the standard.
5. The identification method for rectangular pipes is that the transverse bars of the fake and inferior rectangular pipes are thin and low, often resulting in insufficient filling. The reason is that the manufacturer has a large negative tolerance, and the first few layers of pressure on the finished product.
6. The identification method for rectangular pipes is that the cross-section of the fake and inferior rectangular pipes is elliptical. The reason is that the manufacturer, in order to save materials, has a large reduction in the first two passes of the finished roll, which greatly reduces the strength of this type of threaded steel and does not meet the standards for the external dimensions of threaded steel.
7. The identification methods for rectangular pipes include uniform composition of high-quality steel, high tonnage of cold shear machines, smooth and neat cutting end faces, while fake and inferior materials often have meat shedding on cutting end faces due to poor material quality, which is uneven and lacks metallic luster. Moreover, due to the limited cutting of the manufacturer's products, large ears may appear at the head and tail.
What are the models of rectangular steel tubes? What are the methods for distinguishing rectangular tubes? The above content is the answer that everyone wants to know. Everyone should have a comprehensive understanding of the rectangular tube type, so as to choose the most suitable one according to their own needs, in order to better ensure that every work can be carried out well. In short, there are many models of rectangular tube types, and when choosing, one should be aware of their own needs. Process Flow
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Company Profile
Development Events
Certifications
FAQ
Q1: How can I get a quotation from you ?
A1:You can leave us message, and we will reply every message in time. Or we may talk on line by We Chat / Whats app/Email.
Q2:Can I get samples before order ?
A2:Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings. But the customer will pay the freight.
Q3:What product information must I provide before making a purchase ?
A3:Please provide the grade,width,thickness,and surface treatment requirement,as well as the quantities you require.
Q4:What about product pricing information?
A4:Prices vary due to changes in raw materials on a regular basis.
Q5:Can I have a visit to your factory?
A5: Of course.Our factory located at No.1,Hengtong Road,Daqiuzhuang Industrial Zone,Tianjin,China.Customers that from all over the world are welcomed to our factory.
Q6:How long is your lead time?
A6:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q7:What are your payment terms?
A7:Payment<=1000USD, 100% in advance. Payment>=1000USD 30% T/T in advance ,balance before shippment.If you have another question, please feel free to contact us as below.
Address:
No. 1 Hengtai Road, Daqiuzhuang Town, Jinghai District, Tianjin, China
Business Type:
Manufacturer/Factory
Business Range:
Construction & Decoration, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, OHSAS/ OHSMS 18001
Company Introduction:
Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. Includes 10 subsidiaries. It deserves a large united enterprise group with a registered fund of USD 65 million and fixed assets of USD 3.5 billion. Yuantai Derun is a professional manufacturer of hollow sections, ERW pipe, galvanized pipe and spiral pipe in China and is one of "The top 500 manufacturing enterprises" in China, annual output reaches 10 million tons.
Yuantai Derun has 7 production plants including 59 production lines of black ERW pipe, 10 production lines of galvanized pipe, 3 production lines of spiral welding pipe, 1 production lines of JCOE LSAW pipe. Total plants area covers 900 acres. Square pipe from 10*10*0.5mm~1000*1000*60mm, rectangular pipe from 10*15*0.5mm~1000*1100*60mm, Circular pipe from 3/4"X0.5mm~80"X40mm, LSAW steel pipe from Ø 355.6~Ø 2032mm, spiral pipe from Ø 219~Ø 2032mm, can be manufactured. Yuantai Derun can manufacture square rectangular pipe as per standards of ASTM A500/501, JIS G3466, EN10219, EN10210, AS1163.
Yuantai Derun has the biggest square rectangular pipe stock in China which can meet customer′s direct procurement requirement. Years of technology accumulation makes Yuantai Derun possessing a wealth of production experience which can greatly shorten the development and production cycle of non-standard steel pipe and speed up the delivery time of customized products. At the same time Yuantai Derun also pays attention to advanced technology research and production use of advanced equipment, the production lines of 500*500mm, 300*300mm and 200*200mm are the most advanced equipment in China which can realize the electronic-controlling automation from the forming to the finishing.
Advanced production equipment, superb technical force, excellent managing talents and solid financial strength guarantee the excellent pipe manufacturing. The products are widely used in many fields, including steel structure of building, automobile manufacture, shipbuilding, machinery manufacturing, bridge construction, container keel construction, stadiums construction, and large airport constructions. The products were used in China famous projects such as the National Stadium (The Bird′s Nest), the National Grand Theater and the HongKong-Zhuhai-Macao Bridge. Yuantai products are widely exported to Middle East, Southeast Asia, European Union, Africa, Latin America, USA etc.
Yuantai Derun had obtained the certificates of ISO9001-2008 International Quality Management System and EU CE10219 system. Now Yuantai Derun is striving to apply for "National Well-known Trademark"