Heavy-duty structural Φ114 mm & Φ140 mm seamless / ERW tubular steel posts engineered for W-Beam, Thrie-Beam, and Roller Barrier systems. Fully compliant with AASHTO M180, ASTM A123, and EN 1317 standards.
Shandong Sinoguardrail Traffic Facilities Co., Ltd. manufactures heavy-duty Highway Guardrail Round Type Posts (Circular Tubular Posts) conforming strictly to international crashworthiness standards (AASHTO M180 / ASTM A123 / EN 1317). Due to their 360-degree uniform cross-sectional inertia, round tubular steel posts offer equal multidirectional resistance during angled impacts, making them a preferred choice for national expressways, bridge transitions, urban arterial roads, and rolling barrier foundations.
Manufactured from high-grade structural carbon steel (Q235B, Q345B, SS355JR, ASTM A36), our round posts are processed through continuous hot-dip galvanizing lines, achieving heavy anti-corrosion protection from 550 g/m² to 1100 g/m² (approx. 80µm to 160µm thickness). This provides an extended 30+ year maintenance-free design life, resisting high-salinity marine air, desert sandstorms in Saudi Arabia and the UAE, and humid tropical climates across Southeast Asia and South America.
| Parameter | Standard Engineering Specification |
|---|---|
| Product Profile | Circular Hollow Section (CHS Tubular Post / Round Steel Upright) |
| Standard Diameters (OD) | • Φ114 mm (4.5 inch): For standard W-Beam barrier systems • Φ140 mm (5.5 inch): For heavy-duty Thrie-Beam and Roller Barrier systems • Φ76 mm / Φ89 mm: For urban municipal railings & handrails |
| Wall Thickness | 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 6.0 mm (Customizable) |
| Standard Lengths | 1200 mm, 1500 mm, 1800 mm, 1980 mm, 2150 mm, 2500 mm (Custom cutting supported) |
| Material Grades | Q235B (ASTM A36 / SS400) & Q345B (ASTM A572 Grade 50 / SS355JR) |
| Zinc Coating Mass | 550 g/m² (Class A, 78µm) or Heavy-Duty 1100 g/m² (Class B, 150µm) according to AASHTO M180 / ASTM A123 / ISO 1461 |
| Installation Options | • Direct Soil Driven / Rammed Installation • Flange Base Plate Welded (Concrete Deck / Bridge Parapet bolting) • Concrete Embedded Sleeve Foundation |
| Matching System Hardware | Post Rain Caps (Φ114 / Φ140), Round Pipe Bracket Spacers, M16 Splicing / Post Bolts, Flat Plate Washers (75×44×4.0mm) |
Sinoguardrail supplies full structural barrier packages engineered for international EPC infrastructure tenders:
China's Leading Certified Manufacturer: The only Chinese manufacturer holding authentic MASH TL4 crash test reports (100km/h). Fully certified under ISO, SGS, CE, and Bureau Veritas (BV).
25+ Years Global Export Experience: Proven record supplying major highway EPC contractors across Saudi Arabia, UAE, Philippines, Indonesia, Chile, and Brazil with a 98% client reorder rate.
15-Stage QC Strict Quality Control: Automatic steel pipe cutting, high-precision laser hole slotting, tensile yield strength tests, and magnetic/gravimetric zinc thickness verification for every batch.
Complete Assembly Packaging: Fast tooling and batch shipment of matched circular posts, rain caps, round brackets, and connecting fasteners pre-sorted for rapid on-site installation.
Contact our road safety engineering team today for factory-direct container pricing, technical CAD drawing confirmation, and instant international shipping quotations.
SinoGuardrail supplies highway guardrails and roller barrier systems for contractors, distributors and infrastructure project buyers in Southeast Asia, the Middle East, Africa and South America.
Contact: Mr.Zhang
Phone: +86 13306356181
Email: [email protected]
Add: Guanxian Economic Development Zone, Liaocheng City, Shandong Province, China
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