• Square Steel Pipe from Okorder in China CNBM System 1
  • Square Steel Pipe from Okorder in China CNBM System 2
  • Square Steel Pipe from Okorder in China CNBM System 3
Square Steel Pipe from Okorder in China CNBM

Square Steel Pipe from Okorder in China CNBM

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
3000 m.t./month

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Product Description:


1、Structure of Square Steel Pipe Description: 

    The square Steel pipes are used in structural projects, shelves, racks, trailers and in ornamental purpose. The framework made by square steel tubes, is used for providing support to the roof. This framework is also used as roof top ventilation baffles. With compare to round steel pipes, square steel pipes are little more efficient. The reason is that the square column is more efficient than the solid circular column.



2、Main Features of the  Square Steel Pipe: 

·Prompt delivery

·Time-saving 
·High quality 

·Competitive price 



3、Square Steel Pipe Images: 

Square Steel Pipe from Okorder in China with High Quality


Square Steel Pipe from Okorder in China with High Quality


Square Steel Pipe from Okorder in China with High Quality


 


4、Square Steel Pipe Specification: 

Standard

JIS,GB,DIN,ASTM

JIS G3466, GB/T 3094-2000, DIN EN 10216-1-2004, ASTM A513-2007

Grade 

Cr-Mo alloy, 16Mn, A53-A369, Q195-Q345

30CrMo, 16Mn, A106(B,C), Q235, Q345, Q195, Q215

Thickness0.5 - 30 mm
Outer  Diameter10x10---600x600
TechniqueCold Drawn
ApplicationStructure Pipe
Certification
ISO9001
Surface TreatmentGalvanized


cold rolled square pipe:

1) Size: different sizes according to customers' requirement
2) Grade: many different kinds of materials.

3) Standard: GB50205-2001, JIS, ASTM and EN
4) Detailed requirement please feel free to contact

5)Specification:GB6728,DIN,JIS,ASTM-A500

6).Grade:Q195,Q235,Q345,ST37-2,ST52-3,SS400,SS355


Length: 5.8m, 6m, 12m

size

thickness

15*15

0.6—1.2

18*18

0.6—1.5

19*19

0.6—1.5

20*20

0.6—1.5

25*25

0.7—1.5

30*30

0.6—2.0

32*32

0.7—3.0

38*38

0.6—2.0

40*40

0.7—3.0

45*45

0.6—2.0

50*50

0.8—3.0

60*60

0.8—4.0

75*75

1.4—3.75

80*80

1.4—4.0

100*100

1.2—6.0

110*110

4.0—8.0

120*120

4.0—8.0

130*130

4.0—8.0

140*140

4.0—8.0

150*150

4.0—8.0

160*160

4.0—8.0

170*170

4.0—8.0

180*180

4.0—8.0

190*190

4.0—10.0

200*200

4.0—10.0


 


5、FAQ of Square Steel Pipe: 


①How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


②How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.


③ How can we get more information?

You can contact us by Email or call us directly and we will do our best to give you valuable information as much as possible but this service is not available on weekends

Q:What is the difference between API 5L and ASTM A53 steel pipes?
API 5L and ASTM A53 are two widely used standards for carbon steel pipes. While they both serve similar purposes, there are some key differences between them. 1. Scope: API 5L covers seamless and welded steel pipes for transportation of oil, gas, water, and other fluids. It also includes plain-end, threaded-end, and belled-end pipe types. On the other hand, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications. 2. Manufacturing process: API 5L pipe is produced through a hot-rolling process, whereas ASTM A53 pipe is produced through a hot-rolling or cold-drawing process. This difference in manufacturing process affects the pipe's chemical composition and mechanical properties. 3. Chemical composition: API 5L pipe typically has a higher carbon content compared to ASTM A53 pipe. This is because API 5L pipe is used for conveying oil, gas, and water, which often require higher strength and durability. ASTM A53 pipe, on the other hand, is used for mechanical and pressure applications, where lower carbon content is suitable. 4. Mechanical properties: API 5L pipe has higher minimum yield strength and tensile strength compared to ASTM A53 pipe. This is due to the higher carbon content and stricter manufacturing process of API 5L pipe. ASTM A53 pipe has lower yield and tensile strength requirements, making it more suitable for general-purpose applications. 5. Coating options: API 5L pipe can be produced with various coating options such as black varnish, 3PE, FBE, and others, depending on the application requirements. ASTM A53 pipe is usually hot-dipped galvanized for corrosion resistance. In summary, API 5L and ASTM A53 steel pipes have different scopes, manufacturing processes, chemical compositions, mechanical properties, and coating options. Choosing the right pipe depends on the specific application requirements, such as the type of fluid being transported, the operating conditions, and the desired strength and durability.
Q:What is the difference between Schedule 40 and Schedule 80 steel pipes?
The main difference between Schedule 40 and Schedule 80 steel pipes is their wall thickness. Schedule 80 pipes have a thicker wall compared to Schedule 40 pipes, making them more suitable for high-pressure applications and heavy-duty industrial use.
Q:Galvanized steel pipe, PPR pipe, PE pipe, U-PVC pipe and HDPE double wall corrugated pipe and what is the difference between the characteristics of
Galvanized steel pipe is a kind of antirust steel pipe, often used in relatively high water supply pipeline or hot water pipeline, the price is higher, can use for at least 30 years;PPR pipe is a kind of polypropylene plastic, which is commonly used in environmental protection plastic pipes, but only suitable for low temperature occasions. It is mainly used for water supply;
Q:What is the creep resistance of steel pipes?
The creep resistance of steel pipes refers to their ability to withstand deformation or strain under long-term exposure to high temperatures and constant stress. Steel pipes exhibit good creep resistance due to their high melting point and structural integrity, making them suitable for applications that involve elevated temperatures and prolonged use.
Q:What are the different methods of inspecting steel pipes for defects?
There are several methods of inspecting steel pipes for defects, including visual inspection, magnetic particle testing, ultrasonic testing, radiographic testing, and eddy current testing.
Q:Can steel pipes be used for underground chemical pipelines?
Yes, steel pipes can be used for underground chemical pipelines. Steel pipes are widely used in various industries, including the chemical industry, due to their durability, strength, and resistance to corrosion. When selecting steel pipes for underground chemical pipelines, it is important to choose the appropriate grade of steel that is resistant to corrosion from the specific chemicals being transported. Additionally, proper coating and lining techniques can further enhance the resistance of steel pipes to chemical corrosion. Regular inspection and maintenance are also necessary to ensure the integrity and safety of the underground chemical pipeline system.
Q:Are steel pipes resistant to earthquakes?
Steel pipes are generally considered to be more resistant to earthquakes compared to other materials such as concrete or PVC pipes. This is due to the inherent properties of steel, which include its high tensile strength and flexibility. During an earthquake, steel pipes can absorb and distribute the seismic energy more effectively, allowing them to better withstand the shaking and ground movements. Additionally, steel pipes have the ability to deform without rupturing or collapsing, minimizing the risk of structural failure. However, it is important to note that the earthquake resistance of steel pipes ultimately depends on various factors such as the design, installation, and overall structural integrity of the piping system. Proper engineering and construction practices should be followed to ensure the highest level of earthquake resistance for steel pipes.
Q:How are steel pipes used in the electronics industry?
Steel pipes are commonly used in the electronics industry for various purposes such as cable management, structural support, and conduit systems. They provide a strong and durable solution for organizing and protecting electrical wires and cables. Additionally, steel pipes are utilized in the construction of electronic equipment enclosures and racks, ensuring stability and efficient cooling.
Q:How are steel pipes used in the petrochemical industry?
Steel pipes are commonly used in the petrochemical industry for various purposes such as transporting and distributing fluids and gases, as well as providing structural support for equipment. They are particularly preferred due to their high strength, durability, and resistance to corrosion, making them suitable for handling harsh and corrosive substances.
Q:How does the price of steel pipes vary based on size and grade?
The price of steel pipes can vary based on their size and grade. Generally, larger pipes tend to have higher prices due to the increased amount of raw materials required for their production. Additionally, pipes with higher-grade steel, which offers better strength and durability, often come at a higher cost compared to lower-grade options. The size and grade of steel pipes are important factors to consider when determining their price in the market.

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