Square tubing is a common type of square cross-section steel, and the tubing has a hollow section. Steel covers aluminum square tubing, square metal tubing, galvanized square tubing and steel square tubing. And 50 x 50 square tube, 1 inch x 1 inch square tubing, 2 square tubes, 3 inch square tubing and many other sizes. The application area of Square Tube is particularly broad. Square Tube has its unique functions and applicability in the fields of architecture, mechanical production, structural engineering, and decorative design.
Square Tubing
Load-Bearing Formula for Square Tubes
Structural Square Tubing uses hollow construction, with its square cross-section design, which is lighter and less costly than solid materials.
The wall thickness of square tube is uniform, and under the action of pressure and load, strong stability, reduce the impact, deformation and unnecessary wear that may be encountered in the production process, and control the production of high-quality steel pipes.
The bearing capacity of the Square Tube is calculated by the formula.
P=σ×W
σ is the maximum stress of a square pipe under pressure or bending.
W is the section modulus of the square tube.
It can be obtained by using the estimation formula，2×2 steel section square tubing wall thickness 2.5mm.
Square Tubes Materials-Aluminum/ Galvanized/ Stainless
The common materials of Square Tubing mainly include carbon steel, stainless steel, aluminum alloy, alloy steel, galvanized steel and copper.
Carbon steel
The primary standard for carbon steel square tubes is ASTM A500, with a density of 7.85 g/cm³ and a tensile strength ranging from 400 to 550 MPa. The main advantages are its lower cost, high strength, and excellent weldability.
Stainless steel
The primary standard for stainless steel square tubes is GB/T 20801.2-2020, with a higher density of 7.93 g/cm³ and tensile strength ranging from 520 to 750 MPa. Stainless steel is primarily known for its food safety and corrosion resistance.
Galvanized square tubes
Galvanized square tubes are made of carbon steel with a zinc coating. Their properties are similar to those of carbon steel. The primary manufacturing process is hot-dip galvanizing. After galvanization, the square tubes become more durable and have significantly enhanced corrosion resistance.
Engineers and customers can select pipes of suitable materials according to the specific needs of the engineering project and environmental conditions. Tubing of different materials is very important in the manufacturing and application of Square Tube.
Features of Steel Square Tubing
Below are a few notable functional features of square tubes.
Steel Square Tubing-Strength And Hollow Structure
- Square Tubing is usually made of alloy steel, carbon steel and other high-hardness materials, which determine its excellent tensile, compressive and bending ability. The square cross-section increases the surface contact area, disperses the stress pressure, and improves the overall strength of the tubing.
- On the other hand, the hollow structure of square tube has made it excellent in support, frame, structure and other applications. Good stiffness can resist deformation and bending, and can maintain the original shape after strong stress, ensuring the stable and safe progress of the project.
Steel Square Tubing-Weight And Galvanized
- The hollow structure of Square Tubing makes it light in weight, reducing the load on the building during handling and manufacturing, reducing cost overhead, and significantly improving work efficiency.
- The galvanized steel and other corrosion resistant materials can help Square tubes not be affected by corrosion in the harsh environment such as humidity and low temperature, and extend the service life. Excellent oxidation resistance and acid and alkali resistance make it suitable for Marine environments and chemical equipment and other areas with high corrosion resistance requirements.
Welding And Machinability
- The surface of square tube is smooth and not easy to deform, which can maintain high precision and consistency, and can be used for cutting, drilling, milling, stamping and other tube processing processes according to actual needs.
- The square tubes can be firmly connected with other metal components. During the welding process, it maintains a good shape structure, realizes manual welding and automatic welding in various forms, and ensures the reliability of welded joints.
Wall Thickness of Square Tubing
| Nominal size (mm) | Carbon steel W.T. (mm) | SS W.T. (mm) |
| 20×20 | 1.2-3.0 | 0.8-2.5 |
| 30×30 | 1.5-4.0 | 1.0-3.0 |
| 40×40 | 2.0-5.0 | 1.5-4.0 |
| 50×50 | 2.5-6.0 | 2.0-5.0 |
| 60×60 | 3.0-8.0 | 2.5-6.0 |
| 80×80 | 4.0-10.0 | 3.0-8.0 |
| 100×100 | 5.0-12.0 | 4.0-10.0 |
The above are some typical square tube wall thicknesses. If the dimensions you wish to purchase are not within the above range, please contact us by email and we will send you all the dimensions.
Steel Square Tubing Conclusion
Carbon steel square pipe because of its special square section, stable shape, stability and reliability is very strong. Easy to install and operate. As a common construction and manufacturing steel pipe material, it will play an extremely important role in the future.
FAQs:
1. How much weight can 2x2 square tubing hold
The strength of 2×2 square pipe depends on the material, wall thickness, loading conditions, material grade and other factors, need to be evaluated according to the specific situation to determine the specific strength.
Take the ASTM A500 standard square pipe produced by Pandapipe as an example. The square sections are available in sizes ranging from 2×2 inches to 12×12 inches. Square Hollow Section Thickness: 1.000 in. [25.4 mm] or less. ASTM A500 Grade B Tensile strength is 58,000 MPa. Yield strength is 46,000 MPa. 1.000 in. [25.4 mm] Or less. Astm A500 gr b tensile strength is 58,000 mpa. Yield strength is 46,000 mpa.
2. 14 gauge vs 16 gauge square tubing, what is the difference
14 gauge and 16 gauge square tube, the main difference is the thickness.
14 gauge square pipe has a wall thickness of about 2.03 mm. Suitable for applications with higher load requirements.
16 gauge square pipe has a wall thickness of about 1.65 mm. Suitable for medium load applications.
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