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Yuantai Derun Is The Largest Square Tube Manufacturer In China

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square tube supplier

Square Tube & Pipe

Dimensions:10*10-1200*1200mm or custmized
W.T.: 0.5-60mm or custmized
Length:0.5-26.5m or custmized
Grade:Gr.A/B/C,S235/275/355/420/460,A36,SS400,Q195/235/355,STKR400/490,300W/350W,etc.
Standard:
ASTM A500/A501,EN10219/10210,JIS G3466,GB/T6728/3094 AS1163, CSA G40.20/G40.21,etc.
Surface Treatment:Bare,oil,painted,galvanized,etc.
MOQ: 2-5 Tons
Capacity: 5 million tons / year
Packaging: PVC package or follow your needs
Port of origin: Tianjin Port
Payment:TT/LC,etc

Hot Selling Square Tubing

Types Of Square Pipe

Top 500 enterprise
China Top 500 Enterprises
Capacity of manufacturing
22 years manufacturing experiences
Yuantai Derun honor
80 R&D patent technologies
steel tubes
200000 tons of spot inventory
22+ Years Of

Industry experience

Quality square pipe manufacturers

Yuantai Derun was the largest square pipe supplier in China

Our main square piping products include black steel square tube, hot galvanized square tube,ZAM coating square tube,pre galvanized square tube. What’s more, we have various kinds of special shaped square tube.We believe there will always be one for you.

  • High production capacity

    5 Million Tons / Year

    High Production Capacity

  • High precision

    Precision

    High Precision

  • high quality

    100%

    High Quality

  • high efficiency

    Efficiency

    High Efficiency

Advantage Of Using Square Tube

High strength

High strength

Square tubes have high tensile, impact, and bending strength, and can withstand large loads and pressures, making them suitable for making various structural components.

Stability

Stability

Because all four sides of the sq pipe&tube are flat, this adds stability to the structure.

Bending Resistance

Bending Resistance

The bending resistance of box tubings is stronger than that of round pipes.

Easy To Transport

Easy To Transport

Unlike round pipes, square section pipes are easier to stack and store, making transportation and storage more convenient. Circular pipes have rolling properties, making them inconvenient to stack.

Corrosion Preventive

Corrosion Preventive

After surface treatment such as hot-dip galvanizing, the corrosion resistance of the square tube is greatly improved, and its service life can reach more than 30 years.

Sustainable Development

The use of square steel pipes reduces the logging of wood and other vegetation, and is also a recyclable and environmentally friendly metal building material.

Support Services We Offer

From design to finished product, we pursue perfection at every step.

1. Pipe Cutting

2. Tube Polishing

Tube Punching

3. Tube Punching

Pipe End Flat

4. Pipe End Flat

Pipe Galvanizing

5. Pipe Galvanizing

Pipe Bending

6. Pipe Bending

Pipe Painting

7. Pipe Painting

Four Corner Heating

8. Four Corner Heating

Heat Treatment

9. Heat Treatment

Tube Oiling

10. Tube Oiling

spray marking

11. Spray Marking

Pipe Welding

12. Pipe Welding

Application Scenarios

Square tube&pipe is widely used in various scenarios.
Bridge Structures

Bridge Structures

In our life and industry, square tubes are widely used in large buildings such as Hong Kong-Zhuhai-Macao Bridge, Yuantai Derun provide high quality square tube .

Building Structure

Building Structure

Square tube is widely used in building structures because of its excellent yield strength, tensile strength, elongation and corrosion resistance.Yuantai Derun supplied square tube for Cairo Administrative CBD, Egypt

Mechanical Manufacturing

In these high-tech fields, the high-temperature stability and mechanical properties of square tube have been fully utilized.Yuantai Derun's early square tubes were supplied to agricultural machinery factories in Henan, China。

Offshore photovoltaic bracket

Offshore photovoltaic bracket

Square tube are also widely used in the fields of Offshore photovoltaic bracket.

Production Process

HFW DFT Workmanship

Welded Square Tube Making Process

Step 1
High Quality Steel Coils
High Quality Steel Coils
Step 2
Uncoiling
Step 3
Edge trimming welding
Edge Trimming Welding
Step 4
loop storage
Loop Storage

Step 5
Straightening
Straightening
Step 6
Roll Cold Forming
Roll Cold Forming
Step 7
High-frequency welding
High Frequency Welding

Step 8
Cutting
Cutting
Step 9
size testing
Size Testing
Step 10
Packaging And Storage
Packaging And Storage

Other Square Tube Characteristic

Welding: Good
Grinding: Good
Corrosion Resistance: Poor For Black Square Tubes,Good For HDG Square Tubes
Wear Resistance: Ordinary
R Corner: 
When the wall thickness is not greater than 3mm, the R-angle is not greater than 1mm;
When the wall thickness is 3-8mm, the R angle should not exceed 2mm;
When the wall thickness is above 8mm, R is not greater than 3mm;

End Finish:Smooth and flat,no burr

Weld Seam:Tight, straight, and sturdy
Flexible customization options:
1.Grade
2.Outer Diameter
3.Wall Thickness
4.Length

  • how to bend square tube?
    The production method of square tube bending arc is as follows:

    1. Preparation work: Confirm the material and size of the square tube, as well as the radius and bending angle of the arc that needs to be made.

    2. Mold making: Create a suitable wooden or metal mold based on the radius and bending angle of the arc.

    3. Heating square tube: Place the square tube into a dedicated heating device and heat it to a certain temperature to soften the square tube material. The heating temperature should be determined according to the properties of the material, usually between 500-800 degrees Celsius.

    4. Bending square tube: Quickly place the heated square tube into the prepared mold and apply force to bend it into the desired circular arc shape. Be careful during the operation to prevent burns or other accidents.

    5. Cooling square tube: Place the bent square tube in air for natural cooling to restore its original hardness and shape.

    6. Processing and Cleaning: For curved square tubes that require further processing, processes such as grinding, polishing, and painting can be carried out to obtain a smoother and more aesthetically pleasing surface.

    It should be noted that when bending the circular arc of the square tube, the heating time and temperature should be reasonably controlled according to the strength and bending radius of the material to avoid excessive softening or damage to the material. In addition, safety should be taken into account during the operation process, and appropriate protective equipment and tools should be used to avoid accidents. It is best to operate under the guidance of professional processing plants or experienced personnel to ensure quality and effectiveness.
    Jul 12,2024
  • how strong is square tube
    Square tube usually refers to square pipe material, and its strength depends on its size and material. The larger the wall thickness and side length of a square tube, the stronger its structural strength and load-bearing capacity in general. The material of square tube can also affect its strength, for example, stainless steel square tube is more corrosion-resistant than carbon steel square tube, but carbon steel square tube may have higher mechanical strength.
    Jul 12,2024
  • how to cut square tube 22.5 degrees
    To cut 22.5-degree square tubes accurately and safely, use the right techniques and tools. Here are the steps and techniques you need to complete this task:

    Get your tools ready. First, make sure you have the right tools for cutting square tubes. These may include angle grinders, cutting saws, or special square tube cutters. Choose tools that are right for the material and thickness of the tube. Measure and mark. Measure the length and angle of the tube before cutting. Mark a 22.5-degree angle on the square tube with a measuring tool. Make sure the markings are clear for reference during cutting. Fixed square tube: Secure the square tube during cutting to prevent movement. Use clamps on fixtures or workbenches to secure square tubes. Cutting: Cut according to your tool. When using an angle grinder or cutting saw, cut along the marked angle line at the right speed and force to avoid overheating or inaccurate cutting. Safety measures: Wear safety goggles, gloves, and earplugs during cutting to protect yourself from splashes and noise. Check the cutting quality. If necessary, you can use a file or sandpaper to trim the cutting surface.
    By following the above steps and techniques, you can safely and accurately cut 22.5 degree square tubes.
    Jul 12,2024
  • how to cut square tube 45 degrees?
    To cut the 45 degree square pipe, you can use the following methods:
    Use a CNC cutting machine:
    First, make sure that the cutting parameters of the CNC cutting machine (such as cutting speed, cutting air pressure, equipment tension, etc.) meet the needs of cutting square tubes.
    Use professional software for the design of the cutting path to ensure that the cutting angle is accurate to 45 degrees.
    Place the square tube and start the CNC cutting machine to start cutting.
    Manual sawing:
    If the size of the square tube is not big, you can consider using a manual electric saw or saw blade for sawing.
    Before sawing, the square tube needs to be fixed on a stable table to ensure that it will not move during the sawing process.
    Use a cutting line to draw a 45-degree cut mark and then proceed with the sawing step-by-step.
    Safety Precautions:
    Wear appropriate personal protective equipment such as safety glasses, gloves and earplugs when operating.
    Follow safety procedures to ensure a safe working environment.
    Jul 12,2024
  • how to remove weld seam from square tube
    1. Cutting method: This method uses a fixed blade or rotating cutting head inserted into the tube to cut burrs.
    2. Rolling method: This method uses a rolling device inserted into the pipe to cause plastic deformation of the internal burrs, achieving the effect of thinning the height of the internal burrs.
    3. Oxidation method: At the beginning of steel pipe welding, an oxygen flow is sprayed into the inner weld seam through a ventilation nozzle, and the residual heat of the weld seam is used to accelerate the oxidation of internal burrs, which fall off under the airflow.
    4. Pulling method: When the steel pipe passes through the mold, the burrs inside the steel pipe are removed under the action of the circular blade of the floating plug.
    Jul 12,2024
  • how to know square tubing price every day?
    if you want to know the square tubing cost,or square pipe price today,or square tubing price per foot, or square tubing price per meter,or square tube price per kg,please contact our salesman.
    Nov 5,2024
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Yuantai team has over 21 years of experience in steel pipe project applications, specializing in the production, manufacturing, and customization of square rectangular, and circular steel pipes. Warmly welcome project procurement managers, individual owners, designers, and overall sellers, etc. Write down your requirements and receive professional quotes and technical support.
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