W-Beam & Thrie-Beam Crash Barriers
Durable Road Safety Solutions for High-Impact Protection
2 and 3 Waves Crash Barriers are specially engineered guardrail systems designed to provide high-impact resistance and enhanced road safety. These barriers are made from high-tensile galvanized steel and are widely used along highways, expressways, bridges, and industrial zones to protect vehicles and pedestrians from accidental run-offs and collisions.
The 2-wave barrier features two corrugations and is suitable for standard roadway applications, while the 3-wave barrier offers an additional corrugation for extra strength and impact absorption, making it ideal for high-speed zones, sharp curves, and critical safety areas.
These barriers are designed for easy installation, interchangeability, and compliance with international road safety standards such as MORTH, AASHTO, and EN 1317.
Key Features:
Manufactured using high-quality, hot-dip galvanized steel
Available in 2-wave and 3-wave configurations for different safety requirements
Excellent impact resistance and energy absorption during collisions
Corrosion-resistant finish ensures long service life in outdoor environments
Modular design for quick and easy installation and maintenance
Compatible with standard posts, spacers, and end terminals
Customizable lengths, thicknesses, and coatings available
Applications:
National and state highways
Expressways and flyovers
Industrial zones and parking areas
Airport and railway boundaries
Dangerous curves and accident-prone areas
The 2 and 3 Waves Crash Barriers are essential components of modern road infrastructure, delivering effective protection, long-term durability, and peace of mind for drivers and pedestrians alike.
| Technical Parameters | ||
|---|---|---|
| Parameter | 2-Wave Type | 3-Wave Type |
| Profile Type | W-Beam (2-wave) | Thrie-Beam (3-wave) |
| Material | Hot Dip Galvanized Steel (HR / CR Steel) | Same |
| Steel Grade | IS 5986 / ASTM A572 / S235JR / S355JR | Same |
| Thickness | 2.67 mm / 3 mm / 4 mm | 3 mm / 4 mm / 5 mm |
| Width (Overall) | 312 mm ±10 mm | 505 mm ±10 mm |
| Depth (Wave Height) | 83 mm ±5 mm | 100 mm ±5 mm |
| Length per Panel | 4318 mm (standard) | 4318 mm (standard) |
| Post Type | C-Post / Sigma Post | Same |
| Post Size | 150 x 75 x 6 mm or as per spec | 150 x 75 x 6 mm or as per spec |
| Post Spacing | 2.0 m or 1.33 m (as per crash rating) | 2.0 m or 1.33 m |
| Finish | Hot Dip Galvanized (610–630 gm/m²) | Same |
| Standard Compliance | MORTH / IRC / EN 1317 / AASHTO M180 | Same |
| Impact Absorption Level | N2 – H2 (based on system & installation) | H2 – H4b |
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Frequently Asked Questions
What is the difference between the 2-Wave (W-Beam) and 3-Wave (Thrie-Beam) Crash Barriers?
The 2-wave W-Beam is 312 mm ±10 mm wide with an 83 mm ±5 mm wave height; the 3-wave Thrie-Beam is 505 mm ±10 mm wide with a 100 mm ±5 mm wave height. Impact absorption level depends on system and installation: N2–H2 for the 2-wave type and H2–H4b for the 3-wave type.
When is the 3-Wave (Thrie-Beam) Crash Barrier used?
High-speed zones and sharp curves. The 3-wave profile adds extra corrugation.
What thicknesses and panel length do the 2 and 3 Waves Crash Barriers come in?
2.67 mm, 3 mm or 4 mm for the 2-wave type, and 3 mm, 4 mm or 5 mm for the 3-wave type. Standard panel length is 4318 mm for both.
What steel and finish are used for the 2 and 3 Waves Crash Barriers?
HR or CR steel in grades IS 5986, ASTM A572, S235JR or S355JR, hot-dip galvanized to 610–630 gm/m².
Which road safety standards do the 2 and 3 Waves Crash Barriers meet?
MORTH, IRC, EN 1317 and AASHTO M180.
What posts and post spacing do the 2 and 3 Waves Crash Barriers use?
C-Post or Sigma Post, sized 150 x 75 x 6 mm or as per spec, at 2.0 m or 1.33 m spacing depending on the crash rating. The barriers are compatible with standard posts, spacers and end terminals.
Where are the 2 and 3 Waves Crash Barriers installed?
National and state highways, expressways and flyovers, industrial zones and parking areas, airport and railway boundaries, and dangerous curves and accident-prone areas.