ASTM A56 Carbon Steel Rectangular Hollow Section 100x70mm Structural Tubing for Building Materials
Zhengde seamless rectangular tubes feature hollow sections with no seams, offering superior material utilization and manufacturing efficiency. These structural steel pipes are ideal for creating ring components, bearing assemblies, and jack sets while providing excellent strength characteristics.
| Dimension A (mm) | Dimension B (mm) | Wall Thickness (mm) | Cross-Section Area (cm²) | Weight (kg/m) |
|---|---|---|---|---|
| 36 | 18 | 1.5 | 1.49 | 1.17 |
| 36 | 18 | 2 | 1.93 | 1.52 |
| 36 | 18 | 2.5 | 2.34 | 1.84 |
| 36 | 18 | 3 | 2.73 | 2.14 |
| 36 | 18 | 3.5 | 3.08 | 2.42 |
| 50 | 32 | 2 | 3.05 | 2.4 |
| 50 | 32 | 2.5 | 3.74 | 2.94 |
| 50 | 32 | 3 | 4.41 | 3.46 |
| 70 | 50 | 4 | 8.69 | 6.82 |
| 70 | 50 | 5 | 10.57 | 8.3 |
| 70 | 50 | 6 | 12.34 | 9.69 |
| 70 | 50 | 7 | 14 | 10.99 |
| 80 | 60 | 4 | 10.29 | 8.07 |
| 80 | 60 | 5 | 12.57 | 9.87 |
| 80 | 60 | 6 | 14.74 | 11.57 |
| 80 | 60 | 7 | 16.8 | 13.19 |
| 90 | 60 | 4 | 11.09 | 8.7 |
| 90 | 60 | 5 | 13.57 | 10.65 |
| 90 | 60 | 6 | 15.94 | 12.52 |
| 90 | 60 | 7 | 18.2 | 14.29 |
| 100 | 70 | 5 | 15.57 | 12.22 |
| 100 | 70 | 6 | 18.34 | 14.4 |
| 100 | 70 | 7 | 21 | 16.48 |
| 100 | 70 | 8 | 23.54 | 18.48 |
Our hot-rolled seamless steel pipes achieve exceptional dimensional accuracy through advanced three-roll mill processing. This technology enables multiple rolling actions in a single pass, ensuring precise wall thickness control while eliminating defects like scratches and surface imperfections.
We maintain extensive stock of carbon rectangular seamless tubes, alloy seamless tubes, and precision tubes ranging from 5-426mm in diameter with wall thicknesses of 0.5-60mm and lengths of 2-16m.
Every seamless steel pipe undergoes rigorous inspection to ensure surface perfection, uniform wall thickness, and dimensional accuracy.
- Engineering construction and structural frameworks
- Glass curtain walls and architectural decoration
- Automotive manufacturing and machinery components
- Shipbuilding and container manufacturing
- Power generation equipment and agricultural construction
- Furniture manufacturing and fitness equipment
- Fluid transportation systems and fire protection
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, and various metal products. With five production bases and over 100 production lines, we serve customers across 50+ countries worldwide.
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