Key Components

A guardrail is a system, not just a rail. It consists of the following components working together:

1. Rail Element (Beam): The corrugated steel component that contacts the vehicle.

2. Post: The vertical support embedded in the ground (steel, wood, or concrete).

3. Blockout (Spacer): A piece placed between the rail and the post to minimize vehicle snagging on the post.

4. End Terminal: The energy-absorbing, flared, or buried section at the beginning and end of the guardrail run, critical for safe impact.

5. Fasteners: Bolts, nuts, and washers (typically galvanized to ASTM A 153/AASHTO M 232).

1. Most Common Type: W-Beam Guardrail

The W-Beam is the most widely used and cost-effective type globally.

Our W-Beam Guardrail is the standard semi-rigid crash barrier for highways and expressways. Fabricated from hot-dip galvanized corrugated steel (AASHTO M 180 compliant), it safely deflects and redirects impacting vehicles, preventing run-off-road collisions and protecting roadside assets. Available in 2.67mm (12-gauge) or 3.43mm (10-gauge) thickness.

High-Tensile Steel, Maximum Safety. The W-Beam rail is formed from high-grade structural steel (e.g., Q235 or Q345, Yield Point $ge 3500 text{ kg/cm}^2$) into its characteristic “W” cross-section. The beam’s hot-dip galvanizing (typically $550 text{ g/m}^2$ or higher) ensures exceptional resistance to rust and weather for decades. We supply standard sections ($4.32 text{ m}$ length) along with matching steel posts (C-Channel or I-beam), blockouts, and all necessary bolts/fasteners (conforming to ASTM A 307 or A 325) to create a fully crashworthy system. The system works by dissipating impact energy along its length while minimizing damage to the vehicle and occupants.

2. Enhanced Type: Thrie-Beam Guardrail

Thrie-Beam Guardrails are the enhanced, three-wave design safety barrier offering superior impact containment and strength over W-Beams. They are ideal for high-speed zones, bridges, and areas with high traffic volume, including large trucks and heavy vehicles.

Superior Containment and Redirection. The Thrie-Beam features an additional wave/corrugation, making the rail taller and wider (approx. $510 text{ mm}$ width) than the standard W-Beam. This increased size and rigidity is necessary for higher containment levels (e.g., performance class H1 or H2 under EN 1317), making it highly effective on medians, bridge approaches, and sharp curves. Like all our metal barriers, it is constructed from high-tensile steel and fully hot-dip galvanized for extreme durability and long-term performance. The Thrie-Beam system is essential when greater safety assurance is required against heavier and higher-center-of-gravity vehicles.