×
The global infrastructure landscape demands safety solutions that balance performance, durability, and cost. W beam guardrails are among the most widely used highway safety barriers due to their proven effectiveness in redirecting vehicles and reducing accident severity. Key specifications for W beam guardrails are defined by international standards such as AASHTO M180 and EN 1317, which outline geometry, material properties, and performance classes. The typical W-beam profile is 12.75 inches wide with a depth of 3.5 inches and a thickness of 0.064 inches (or 1.6 mm), crafted from hot-rolled steel sheet. The steel grade is typically SS400 or Q235B, offering a minimum yield strength of 235 MPa and tensile strength of 375-500 MPa, ensuring optimal energy absorption. The most critical aspect of guardrail specifications is the zinc coating, which must meet a minimum thickness to prevent corrosion. Standard hot-dip galvanizing with a coating weight of 550 g/m² (approximately 80 µm thickness) ensures a service life of 40-50 years in moderate environments, extending to 30-35 years in coastal areas. Another vital specification is the post spacing, usually 1.9 meters (6.32 feet) for standard systems, but variable depending on the containment level and site conditions. The system must also include proper end treatments, such as decayed or anchored ends, to reduce the risk of spearing. For global projects, adherence to local regulations like EN 1317 is crucial, with performance classes from N2 to H2 based on impact severity. Our manufacturing process incorporates stringent quality controls, including dimensional accuracy within ±2 mm, and physical tests ensure the beam's durability. We also offer customization in post type (steel, wood, or concrete) and height adjustment, making our guardrails versatile for highways, bridges, and rural roads. By selecting a high-quality W beam guardrail system, stakeholders ensure compliance, safety, and reduced lifecycle costs.
29
Jul
31
Jul
EN
