• Square Steel Pipe from Okorder in China with High Quality System 1
  • Square Steel Pipe from Okorder in China with High Quality System 2
  • Square Steel Pipe from Okorder in China with High Quality System 3
  • Square Steel Pipe from Okorder in China with High Quality System 4
  • Square Steel Pipe from Okorder in China with High Quality System 5
  • Square Steel Pipe from Okorder in China with High Quality System 6
Square Steel Pipe from Okorder in China with High Quality

Square Steel Pipe from Okorder in China with High Quality

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
1111 m.t./month

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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: 



 


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

 

 

Q:What are the different strategies for pipe laying using steel pipes?
Various strategies exist for laying steel pipes, each tailored to specific environments and needs. Here are a few commonly used approaches: 1. Open Trench: The traditional and widely employed method involves digging a trench along the desired pipeline route. Steel pipes are then placed in the trench, aligned, and welded together. This technique allows for easy access, maintenance, and repair of the pipeline. 2. Direct Pipe: This method is utilized when the pipeline needs to pass beneath obstacles like rivers or highways. It entails drilling a borehole from one side to the other while simultaneously laying the steel pipe. The pipe is subsequently pulled through the borehole, resulting in a continuous pipeline. 3. Horizontal Directional Drilling (HDD): HDD is employed when the pipeline must be installed beneath existing infrastructure or environmentally sensitive areas. A pilot hole is drilled horizontally, and the steel pipe is then pulled through using a reaming tool. This approach minimizes surface disruption and reduces environmental impact. 4. Sliplining: This technique involves inserting a smaller diameter steel pipe into an existing larger pipe. The smaller pipe is pushed or pulled into the larger one, providing a new corrosion-resistant lining. Sliplining is commonly used for rehabilitating deteriorated or damaged pipelines. 5. Microtunneling: Similar to HDD, microtunneling employs a microtunnel boring machine (MTBM) that simultaneously excavates the soil and installs the steel pipe. This method is frequently used for precise pipe laying, particularly in urban areas with limited space. 6. Jacking: Jacking, also referred to as pipe jacking or pipe ramming, is suitable for installing steel pipes in soil conditions that are unsuitable for open trenching. Hydraulic jacks or pneumatic rams are used to push the steel pipe into the ground. Jacking is commonly employed for crossing under railways, roads, or buildings. 7. Offshore Pipeline Laying: When it comes to subsea applications, various techniques can be employed, including S-lay, J-lay, or reel-lay. These methods involve deploying the pipeline from a vessel, either vertically or at an inclined angle, and welding the steel pipes together as they are lowered to the seabed. Each strategy possesses unique advantages and considerations, depending on factors such as terrain, environmental impact, existing infrastructure, and project requirements. It is crucial to thoroughly assess these factors and select the most appropriate pipe laying strategy to ensure the safe and efficient installation of steel pipes.
Q:Can steel pipes be used for electrical conduit systems?
No, steel pipes cannot be used for electrical conduit systems as they are conductive and can pose a safety risk. Non-metallic conduits, such as PVC or fiberglass, are commonly used for electrical wiring to ensure insulation and protect against electrical hazards.
Q:What material is RHS in the steel tube?
RHS is a rectangular hollow section steel. The RHS structure represents a rectangular hollow section steel.
Q:Are steel pipes suitable for underground gas lines?
Yes, steel pipes are suitable for underground gas lines. Steel pipes are known for their strength and durability, making them a reliable choice for underground gas distribution. They have high resistance to external factors such as corrosion and impact, which is important for maintaining the integrity of the gas system. Additionally, steel pipes can withstand high pressure and temperature variations, ensuring the safe and efficient transportation of gas underground. However, it is important to note that proper installation techniques, such as corrosion protection measures, should be followed to ensure the longevity of the steel pipes and prevent any potential leaks or accidents.
Q:What is the difference between seamless steel pipes and seamless alloy steel pipes?
The main difference between seamless steel pipes and seamless alloy steel pipes lies in their composition. Seamless steel pipes are made from carbon steel, while seamless alloy steel pipes are made from various alloying elements such as chromium, molybdenum, and nickel, among others. This difference in composition gives seamless alloy steel pipes enhanced properties such as increased strength, corrosion resistance, and temperature resistance, making them suitable for more demanding applications in industries like oil and gas, aerospace, and power generation.
Q:What are the different types of steel pipe supports?
Some different types of steel pipe supports include pipe hangers, pipe clamps, pipe straps, and pipe saddles. These supports are used to secure and stabilize pipes in various applications, ensuring their proper alignment and preventing sagging or movement.
Q:Can steel pipes be used for conveying food and beverages?
Steel pipes can be used for conveying food and beverages, but certain precautions need to be taken to ensure their safety and suitability for this purpose. Firstly, it is important to choose food-grade stainless steel pipes that are specifically designed for handling food and beverage products. These pipes are made from high-quality stainless steel that is resistant to corrosion and does not leach harmful substances into the food or beverage. Secondly, the pipes should be properly cleaned and sanitized before and after each use to maintain hygiene standards. Regular cleaning and maintenance will prevent the accumulation of bacteria or contaminants that could potentially contaminate the food or beverage being transported. Additionally, it is crucial to consider the compatibility of the food or beverage with the steel pipes. Certain acidic or corrosive substances may react with the steel, causing contamination or compromising the integrity of the pipes. In such cases, alternative materials like food-grade plastic or rubber may be more suitable. Overall, steel pipes can be used for conveying food and beverages, but it is essential to ensure the use of food-grade stainless steel pipes, proper cleaning and sanitization, and compatibility with the specific food or beverage being transported. Following these guidelines will help maintain the safety and quality of the food or beverage during transportation.
Q:Can steel pipes be used for swimming pool installations?
Yes, steel pipes can be used for swimming pool installations. Steel pipes are commonly used for plumbing systems and can be appropriate for swimming pool installations due to their durability and resistance to corrosion. However, it is important to ensure that the steel pipes are properly coated or treated to prevent rusting and deterioration in a pool environment. Additionally, other factors such as water pressure and compatibility with other pool equipment should also be considered.
Q:What is the average cost of steel pipes?
The average cost of steel pipes can vary significantly depending on factors such as size, grade, and quantity needed. Therefore, it is difficult to provide a specific average cost without more information.
Q:How do you calculate the buoyancy of submerged steel pipes?
To calculate the buoyancy of submerged steel pipes, you need to determine the weight of the displaced fluid. This can be done by multiplying the volume of the submerged portion of the pipe by the density of the fluid. The buoyant force is then equal to the weight of the displaced fluid.

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