Wave beam guardrails are a common safety feature along roads, known for their corrosion resistance, anti-aging properties, aesthetic appeal, ease of installation, clear visual guidance, and diverse color options.
Today, we’ll talk about the most common color for road guardrails: silver. Silver is the original color of guardrail panels after they undergo hot-dip galvanizing. However, due to different road types and customer needs, the zinc coating thickness can vary. Here are some common zinc coating thicknesses for wave beam guardrail panels:
1. Zinc Coating of 600g/㎡
These panels are made from Q235 low-carbon steel and shaped into a standard 432031085*3/4mm wave beam guardrail panel. The surface undergoes hot-dip galvanizing with a zinc coating of 600g/㎡, resulting in a thickness of 85um. This meets the national standard for hot-dip galvanized wave beam guardrail panels.
2. Zinc Coating of 300g/㎡
These panels are made from Q235 low-carbon steel and undergo hot-dip galvanizing with a zinc coating of 300g/㎡. This does not meet national standards. The length and thickness of the panels can be customized according to customer requirements.
3. Zinc Coating of 100g/㎡
These panels are made from galvanized steel sheets directly shaped into the wave beam guardrail profile. The zinc coating content is less than 100g, resulting in a thinner coating. This leads to poorer corrosion and rust resistance, a shorter lifespan, and less scratch resistance.
However, it comes at a lower cost.
When choosing wave beam guardrail panels, it is crucial to select the appropriate product based on the actual drawing and customer requirements.
