Rectangular tube vs Square tube:
1. Different cross section
The cross section of the square tube is square; the cross section of the rectangular tube is rectangular.
2. Difference size
The sizes of square tubes and rectangular tubes can be customized according to needs, but the common square tube sizes are 20*20mm-400*400mm, and the common rectangular tube sizes are 20*30mm-200*400mm.
3. Differents in uses
The use of square tubes: construction, machinery manufacturing, steel construction projects, shipbuilding, solar power brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automotive chassis, airports, boiler construction, highway railings , building construction, pressure vessels, oil storage tanks, bridges, power station equipment.
The use of the rectangular tube: a large number of pipes used to transport fluids, such as petroleum, natural gas, water, gas, steam, etc. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts. And engineering structure. Also used to produce a variety of conventional weapons, barrels, shells and soon.
4. Differences in manufacturing processes
The manufacturing process of square tubes is commonly done by cold drawing, cold rolling, hot rolling, etc.; while the manufacturing process of rectangular tubes is generally made by welding or seamless manufacturing processes.
5. The scope of coverage is different: square tube is a kind of rectangular tube, included in the rectangular tube.
Advantages and disadvantages of square tubes and rectangular tubes:
Disadvantages: The cross-sectional dimensions are not as precise as square tubes, and deformation is prone to occur at the corners.
How to choose the appropriate square and rectangular tube?
When choosing square and rectangular pipes, you need to consider the following factors:
1. Material
The material of square and rectangular tubes is usually steel, of which carbon steel and stainless steel are the two most common ones (hollow section). Carbon steel has high strength and corrosion resistance, but is not resistant to high temperatures; stainless steel has excellent corrosion resistance and beautiful appearance, and is suitable for occasions that require high aesthetics. The most common material for square and rectangular tubes is ASTM A500.
2. Size
There are many sizes and specifications of square and rectangular tubes, which can be selected according to actual needs. Among them, the more common sizes are 100mm×100mm, 150mm×150mm, 200mm×200mm, etc.
3. Wall thickness
The wall thickness of square and rectangular tubes is also one of the important factors in selection. If the wall thickness is too small, the pipe fittings will be easily deformed and have insufficient strength; while if the wall thickness is too large, the cost and weight will increase. Therefore, when choosing, you need to make a reasonable choice based on actual needs.
4. Length
1) How to choose the appropriate square and rectangular tube length?
1. Usage scenario: Choose the appropriate length according to the specific role of the square and rectangular tube in the usage scenario. For example, as a support or construction material, it is necessary to select a square rectangular pipe of appropriate length based on factors such as support distance and construction span.
2. Load requirements: Select square and rectangular pipes of appropriate length according to load requirements. For structures with a large load-bearing weight, longer square and rectangular tubes need to be used to increase the load-bearing capacity and avoid structural instability or collapse due to insufficient length.
3. Manufacturing process: Select square and rectangular tubes of appropriate length according to the limitations of the manufacturing process. For example, CNC cutting technology can produce longer square and rectangular tubes, but traditional processing technology may not be able to produce too long tube bodies.
2) How to avoid choosing an inappropriate length?
1. Understand the usage requirements: Before choosing the length of the square and rectangular pipe, you must fully understand the usage requirements, clearly understand what kind of load it needs to bear, what usage scenarios, etc., to avoid poor usage results due to choosing a pipe body that is too short or too long.
2. Refer to empirical data: When choosing the length of square and rectangular pipes, you can refer to the existing empirical data on the market to understand the commonly used length ranges, and then make a choice after comprehensively considering your own needs.
3. Consult professionals: If you are unable to determine the appropriate length, you can consult relevant industry professionals for professional advice.
The advantages of square tubes and rectangular tubes are their stable structure, strong load-bearing capacity, and good durability. Due to its wide range of uses, it can be used in various situations, such as construction projects, bridge projects, mechanical equipment, etc. In addition, square and rectangular tubes also have good processing and welding properties, making them easy to process and connect.
Conclusion:
When choosing a square or rectangular tube, you need to consider its material, size, wall thickness, length and other factors, and make a reasonable selection based on actual needs. At the same time, it is also necessary to note its advantages such as its wide range of uses and good processing and welding properties to meet the needs of different occasions.
Extended information:
