Seamless Precision Steel Tube China Manufacturer & Supplier
As a trusted manufacturer and supplier of precision steel tubes, we offer seamless tubing solutions known for their strength, reliability, and smooth finish. From standard sizes to custom specifications, BAOKUN’s precision seamless tubes are designed to support projects across industries—from automotive and aerospace to construction and manufacturing.
- No joints, maximum strength.
- Consistent dimensions, reliable fit.
- High-grade carbon and alloy steel for long-lasting use.
- Standard stock and large orders ready.
- Flexible order quantity and fast delivery
Sealmess Precision Steel Tube Series
To meet the specific needs of your project, we offer a range of customization options—whether it’s adjusting the diameter, length, or thickness, we can deliver precisely what you need. For convenience, we maintain standard stock ready for quick delivery, and we’re fully equipped to handle bulk orders for larger projects, ensuring timely supply regardless of the scale.
Crafted from high-quality steel materials like C20, CK45, E355, ST52, and SAE1020, our precision tubes are designed to endure and perform over time. They meet industry standards, including EN 10305, ASTM A106-2006, BS 1139, DIN 2391, and DIN 2445, ensuring they meet the highest quality and safety requirements. With BAOKUN’s precision steel tubes, you can count on strength, reliability, and superior performance for any application.
Seamless tubes are incredibly strong and less likely to crack under pressure. They’re perfect for heavy-duty applications where reliability matters most.
Baokun’s tubes are manufactured to precise dimensions, which ensures uniform thickness and a reliable, tight fit in assemblies, enhancing overall system performance.
Made from high-grade carbon and alloy steel, thesse seamless precision tubes resist corrosion and wear, extending the lifespan of the tube and reducing maintenance costs.
These tubes can be used in diverse sectors—from automotive to aerospace to construction—providing a solution for applications requiring strength, reliability, and precision.
Why Choose Baokun For Precision Steel Tubes?
BAOKUN offers competitive pricing, excellent customer service, and a strong commitment to industry standards. With strict quality control at every step, we ensure each product meets your exact specifications. We also guarantee fast delivery, making us a reliable choice for all your needs.
For inquiries or to get a quote, reach out to BAOKUN today—your trusted partner for precision steel tubes!
Product Package
End Caps
Plastic end caps prevent dirt, debris, and moisture from entering the tubes, ensuring that they remain clean and undamaged during transport.
Customized Packaging
For specific customer needs, Baokun can provide tailored packaging solutions
Plastic Bag and Fabric Wrap
Each bundle of steel tubes is often placed in a protective plastic bag. The bundle is then wrapped in a durable fabric cover for added protection
Wooden Box
Wooden box can prevents impact damage and ensure that the tubes stay safe during rough handling or long-distance shipping.
More Information
Precision Steel Pipe Manufacturing Process
To ensure the precision of steel pipes, Baokun follows a strict process from material selection to final inspection.
Material Selection & Formation
The process begins with selecting high-quality steel alloys or carbon steels known for strength and consistency. For seamless pipes, the billet is heated, pierced, and elongated to form a hollow tube, removing welds and ensuring uniform thickness.
Cold Drawing & Heat Treatment
Cold drawing shapes the pipe to precise dimensions and smoothes its surface. Heat treatment, such as annealing, refines hardness and strength to meet industry standards.
Sizing, Straightening & Surface Finishing
Sizing mills control the outer diameter and wall thickness, while straightening machines correct any deformations. Surface finishing processes like pickling and coating improve the pipe’s surface quality and prevent corrosion.
Quality Control
Throughout the process, strict quality control ensures pipes meet dimensional standards and detects flaws.
Frequent Asked Questions (FAQs)
1. What is the difference between A500 and A513 steel tube?
A500 and A513 are both carbon steel tubes, but they have distinct applications. A500 is primarily used for structural purposes, offering high strength for construction, bridges, and support frames. It is commonly cold-formed. In contrast, A513 is designed for mechanical applications where precision is key. A513 tubes are used in automotive, machinery, and equipment manufacturing, offering tight tolerances and enhanced machinability. The main difference lies in their intended applications and steel composition.
2. How do you keep steel tubing from rusting?
To prevent rusting, steel tubing can be treated with protective coatings such as galvanization, powder coating, or painting. These coatings act as barriers against moisture and air, reducing oxidation. Additionally, applying oil or grease provides temporary protection, especially in high-humidity environments. Regular cleaning of steel tubes to remove dirt and moisture helps prevent corrosion. Storing steel in dry, controlled areas and using stainless steel tubes in corrosive environments can also significantly reduce rust formation and extend the life of the tubing.
3. Is round or square steel tubing stronger?
Round and square steel tubing have different strengths depending on their application. Round tubing is generally stronger in terms of uniform load distribution and resistance to external pressure. Its design allows for better performance under bending and twisting forces, making it ideal for structural and fluid transportation uses. Square tubing, however, is preferred for stability and ease of welding, especially in frames and racks. It performs better under torsional stress, but may be weaker in uniform pressure situations compared to round tubing.
