Heavy-duty roll-formed Sigma Profile (Σ-Section) steel posts engineered for European standard EN 1317 and AASHTO M180 highway barrier systems. Optimized for maximum bending resistance and energy absorption.
Shandong Sinoguardrail Traffic Facilities Co., Ltd. is an established manufacturer of high-performance Highway Guardrail Sigma Posts (Σ Posts). Designed with a unique multi-folded geometry, Sigma posts provide superior section modulus and bending strength per unit weight compared to conventional channel posts, making them widely adopted in European standard EN 1317 highway projects and international road safety tenders.
Manufactured from structural steel (Q235B, Q345B, S235JR, S355JR, ASTM A36), our Sigma posts are processed with continuous hot-dip galvanizing, offering zinc coating levels from 550 g/m² to 1100 g/m² (80µm - 160µm). This ensures exceptional corrosion resistance under extreme outdoor exposures, including arid desert zones in Saudi Arabia and the UAE, as well as humid tropical highways in Southeast Asia and South America.
| Parameter | Standard Engineering Specification |
|---|---|
| Product Profile | Cold Roll-Formed Sigma Section (Σ Post / Sigma 100 / Sigma 150) |
| Standard Section Sizes |
• Sigma 100: 100 mm × 55 mm × 4.0 mm / 4.2 mm • Sigma 150: 150 mm × 100 mm × 4.0 mm / 4.5 mm / 5.0 mm |
| Standard Lengths | 1500 mm, 1830 mm, 1900 mm, 1980 mm, 2000 mm, 2300 mm (Custom lengths available) |
| Material Grades | Q235B (ASTM A36 / SS400), Q345B (S355JR / ASTM A572 Grade 50) |
| Zinc Coating Standard | 550 g/m² (78µm) or Heavy-Duty 1100 g/m² (150µm) according to AASHTO M180 / ASTM A123 / ISO 1461 |
| Hole Punching & Slots | Precision CNC oblong and round slots pre-punched for M16 connecting bolts and post-to-beam attachment |
| System Compatibility | W-Beam Guardrail, Thrie-Beam Guardrail, Offset Spacers, and Transit Blocks |
| Complementary Hardware | M16×35 / M16×50 Fasteners, 75×44×4.0mm Washers, Backup Plates, Reflective Delineators |
Sinoguardrail supplies full structural barrier packages engineered for international EPC infrastructure tenders:
A Sigma post must match the approved rail, spacer or blockout, hardware and ground connection arrangement. Use the resources below before confirming a project BOQ or a replacement order.
Read the Highway Guardrail Post Types Guide to compare Sigma, H, U, C and round posts by their approved profile and connection arrangement.
Use the Highway Guardrail Components and BOQ Checklist to verify rails, spacers, bolts, washers, terminals and transition items before quotation.
For post replacement after an impact, follow the Highway Guardrail Maintenance and Repair Guide and inspect adjacent rails, connections and ground condition first.
China's Leading Certified Manufacturer: The only Chinese manufacturer holding authentic MASH TL4 crash test reports (100km/h). Fully certified under ISO 9001, 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: Automated roll-forming lines, precise hole distance control, tensile strength verification, and magnetic/gravimetric zinc thickness tests for every batch.
Container-Optimized Packaging: Packed in high-density steel-strapped bundles with corrosion-preventative spacers to prevent transit damage during ocean freight.
Contact our road safety engineering team today for factory-direct container pricing, technical drawing support, 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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