Product Name: Hot‑Rolled Structural Steel Pipe
Introduction
Hot‑Rolled Structural Steel Pipe is manufactured by induction‑heating a solid billet above its recrystallization temperature, piercing it to create a hollow shell, then rolling it through mandrel mills and stretch‑reducing stands. This high‑temperature process produces pipes with excellent formability, enhanced toughness, and a characteristic mill‑scale finish. Ideal for heavy‑duty structural applications, scaffolding, and welding fabrication, these pipes combine robustness with cost‑effective production.
Key Specifications
| Specification | Details |
|---|---|
| Applicable Standards | ASTM A53 Gr. B, EN 10210 S235J0H, JIS G3445 |
| Material Grades | Carbon steel (C ≤ 0.30%), optional low‑alloy |
| Outer Diameter (OD) | 21.7 – 630 mm |
| Wall Thickness | 2.0 – 30 mm |
| Length | 6 – 12 m (custom up to 18 m) |
| Yield Strength | ≥ 240 MPa |
| Tensile Strength | 370–550 MPa |
| Elongation (min) | ≥ 20 % |
| Straightness Tolerance | ≤ 0.75% of total length |
| Surface Finish | Mill scale (optional shot‑blast or painting) |
Custom diameters, wall thicknesses, and lengths available upon request.
Features & Advantages
Enhanced Toughness: Hot‑rolling refines grain structure, delivering high impact resistance in cold and high‑stress environments.
Good Weldability: Standard carbon content and clean mill‑scale surface allow seamless welding with common processes (SMAW, GMAW, FCAW).
Dimensional Accuracy: Mandrel and stretch mills ensure consistent OD and wall thickness across long lengths.
Durable Surface: Mill scale provides temporary corrosion resistance during handling; can be shot‑blasted or painted for permanent protection.
Economical Production: Efficient high‑temperature processing yields competitive pricing for large‑volume orders.
Applications
Structural Supports: Columns, posts, and bracing in buildings, bridges, and platforms.
Scaffolding & Access Systems: Standardized tube sizes for safe, rapid erection of temporary works.
Mechanical Frames: Equipment chassis, conveyor supports, and machinery guards.
Piping & Conduit: Non‐pressure structural conduit, guard rails, and handrails.
Agricultural & Fencing: Irrigation risers, fence posts, and steel trellises.
Packaging & Delivery
Bundling: Pipes of the same size and grade bundled with steel straps; chocked on treated wooden skids.
End Protection: Plastic caps or tape to prevent ingress of dirt and moisture.
Surface Protection: Optional light oiling or paint; shot‑blast cleaning available for direct painting or galvanizing.
Lead Time: Standard production and shipment within 15–25 days after order confirmation; expedited schedules (10–15 days) available.
Why Choose Our Hot‑Rolled Pipes?
State‑of‑the‑Art Mills: High‑capacity induction piercing and rolling lines ensure uniform wall thickness and excellent straightness.
Rigorous QA/QC: 100 % ultrasonic wall‑thickness testing, mechanical property verification, and dimensional inspection per ASTM/EN standards.
Value‑Added Fabrication: In‑house cutting, beveling, threading, and end‑forming to customer specifications.
Technical Support: Engineering assistance with load‐bearing calculations, welding guidelines, and installation best practices within 12 hours.
Contact Us
For robust, cost‑effective Hot‑Rolled Structural Steel Pipes tailored to your construction and fabrication needs, please contact our sales department. We're committed to delivering reliable tubular solutions and exceptional service for your next project.
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