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Seamless Square and Rectangular Pipes (Tubes) are manufactured from high-quality steel billets through hot rolling or cold drawing processes, without any welded seams. Compared with welded hollow sections, seamless square and rectangular tubes offer higher structural strength, better pressure resistance, and superior load-bearing performance.
| Product name | Square Tube | Standard | ASTM A106 A53 A500 | Grade | GR.B |
| Specification | 20 × 20 mm – 400 × 400 mm | Surface Treatment | black paint | Processing | cold rolled |
| Brand Name | Yangtze Steel | Certificate | CE,ISO | Application | Steel structure and construction projects |
| Delivery Time | within one week | MOQ | 5 tons | Packaging | bundled,waterproof film |
| Place of Origin | shandong | Payment | TT, LC | Update time | 2026-1-9 8:41:29 |
Seamless square and rectangular pipes provide superior strength and reliability for structural and mechanical applications. With strict quality control and stable supply, they are an ideal choice for demanding engineering projects.
Product Advantages
Seamless Structure
No weld seam, ensuring uniform strength and enhanced safety.
High Mechanical Performance
Excellent resistance to bending, torsion, and impact loads.
Precise Dimensions
Accurate size and tight tolerance for easy fabrication and installation.
Smooth Inner & Outer Surface
Suitable for machining, coating, and further processing.
Long Service Life
Stable performance under demanding working conditions.
