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Structural Steel Tube – Seamless & Welded – For Construction
Structural Steel Tube – Seamless & Welded
OD 5-256mm – Grades Q235B, Q345B, S235, S355 – For Building & Machinery
Product Overview
Wuxi Hengzhihui offers structural steel tubes in both seamless and welded constructions, with outer diameters from 5mm to 256mm. These tubes are used in building frames, machinery structures, bridge components, and support systems.
✅ Wide size range – OD 5mm – 256mm
✅ Construction grades – Q235B, Q345B, S235JR, S355J2H
✅ Seamless or ERW welded – Both available
✅ Length – 4m – 12m (cut to size available)
✅ Standards – GB/T 8162, EN 10210-1, EN 10219-1, ASTM A500
Key Specifications
| Parameter | Details |
|---|---|
| OD Range | 5mm – 256mm |
| WT Range | 1.5mm – 20mm |
| Grades | Q235B, Q345B, S235JR, S355J2H |
| Yield Strength (Q235B) | ≥235 MPa |
| Yield Strength (Q345B) | ≥345 MPa |
| Yield Strength (S355J2H) | ≥355 MPa |
Applications
Building frames and columns
Machinery frames and bases
Bridge trusses
Scaffolding and formwork
Transmission towers
Agricultural equipment frames
Advantages
| Feature | Benefit |
|---|---|
| Good weldability | Suitable for all standard welding processes |
| Cost-effective | Competitive pricing for large volumes |
| Dimensional accuracy | Consistent OD and WT for easy fabrication |
Contact
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: /
Contact Person: Alice Yuan
Tags: Structural Steel Tube Q345B Steel Pipe S355J2H Construction Steel Building Frame
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