1. Types & Applications  

Highway Guardrails : Crash-resistant (W-beam, Thrie-beam)  

Urban Road Guardrails: Decorative & safety (Z-bar, PVC-coated)  

Temporary Barriers : Plastic or steel, for construction zones  

2.Common Materials Galvanized Steel  – Most common for highways  

Aluminum Alloy  – Lightweight, corrosion-resistant  

PVC-Coated Steel  – Urban roads (aesthetic + anti-rust)  

3. Main Dimensions   (1) Highway Guardrails (W-beam, Thrie-beam)

Height: 1200mm–2500mm (standard: 2000mm)  

Thickness: 2.5mm–5.0mm (corrugated steel)  

Post :  Shape: Round (Φ60mm) 

Spacing : 2m–4m (adjustable based on length)  

(2) Urban Road Guardrails  

Height: 1200mm–2500mm (standard: 2000mm) 

Panel Width : 2m–3m  Post Size : 80×80mm or 100×100mm (square steel)  Mesh :  Vertical Bar Spacing : ≤110mm (for safety)  

Wire Diameter : Φ2.5mm–Φ5.0mm  

4. Surface Treatment  Hot-dip galvanizing : ≥600g/m² (for highways)  

Powder coating : Urban roads (colors: white, green, blue)  

PVC coating : Extra corrosion protection  

5. Crash Ratings   | Standard | Application | Impact Resistance |  

| A-level | Highways | 160kJ+ (heavy vehicles) |

| B-level | Urban expressways | 100–160kJ |  C-level | Local roads | ≤100kJ |