Hot-Dip Galvanized
Galvanized Steel Grating
Hot-dip galvanized steel grating for industrial walkways, platforms, and flooring. Superior corrosion resistance with cost-effective pricing.
Galería
Galvanized Grating - Bearing Bar Detail
Galvanized Steel Grating Panels - Close Up
Galvanized Heavy Duty
Galvanized Grating Installation
Overview
What is Galvanized Steel Grating?
Galvanized steel grating is carbon steel bar grating that has been hot-dip galvanized after fabrication to provide a protective zinc coating. This galvanization process creates a metallurgical bond between zinc and steel, offering superior corrosion resistance at a fraction of the cost of stainless steel. It is the most widely specified grating type for industrial applications where corrosion resistance and budget are both important considerations.
The hot-dip galvanizing process involves cleaning the fabricated steel grating, fluxing, and immersing it in molten zinc at approximately 840°F (449°C). The resulting coating thickness typically ranges from 3.9 mils (100 microns) to 5.9 mils (150 microns) depending on steel thickness. This coating provides both barrier protection and cathodic protection, self-healing minor scratches and cuts.
Galvanized steel grating is available in welded and press-locked constructions with bearing bar depths from 1 inch to 6 inches. It is widely used in chemical plants, wastewater treatment facilities, power generation, offshore platforms, and commercial buildings where long-term corrosion resistance is required without the premium cost of stainless steel.
Especificaciones
Ficha Técnica
Dimensiones
| Parameter | Value |
|---|---|
| Base Material | Carbon Steel ASTM A36 / A1011 CS Type B |
| Coating Standard | ASTM A123 - Hot-Dip Galvanizing (batch process) |
| Zinc Coating Thickness | 3.9 mil (100 µm) min; 5.9 mil (150 µm) typical |
| Bearing Bar Depth | 1" (25mm), 1-1/4" (32mm), 1-1/2" (38mm), 2" (51mm), 2-1/2" (64mm), 3" (76mm), 4" (102mm), 5" (127mm), 6" (152mm) |
| Bearing Bar Thickness | 1/8" (3mm), 3/16" (5mm), 1/4" (6mm) |
| Bar Spacing Centers | 1-3/16", 1-5/16", 1-3/8", 1-5/8", 2-3/8", 3", 4", 6" |
| Panel Sizes | Width: 3' - 5' (0.9m - 1.5m); Length: up to 24' (7.3m) |
| Load Capacity | 125 psf (light) to 1,000+ psf (extra heavy duty) |
Características
Características y Ventajas
Superior Corrosion Protection
Hot-dip galvanizing provides both barrier and cathodic protection. The zinc coating forms a metallurgical bond with the steel, preventing rust even at cut edges and drill holes. Self-healing properties protect minor scratches and surface damage.
50+ Year Service Life
In typical industrial environments, hot-dip galvanized steel grating provides maintenance-free service for 50 years or more. The corrosion rate of zinc is 1/10 to 1/100 that of steel in most atmospheres, delivering exceptional long-term value.
Cost-Effective Alternative
Galvanized steel grating offers 40-60% cost savings compared to stainless steel while providing excellent corrosion resistance. No additional painting or coating maintenance is needed, reducing lifetime ownership costs significantly.
Full Structural Strength
Unlike paint or powder coating, the galvanizing process does not affect the base steel's mechanical properties. ASTM A36 steel maintains its full 36,000 psi yield strength after galvanizing, supporting the same load ratings as uncoated carbon steel grating.
Aplicaciones
Dónde se Instala
Chemical Plants
Corrosion-resistant flooring and platforms in chemical processing
Wastewater Treatment
Walkways and tank platforms at water treatment facilities
Power Generation
Turbine platforms and access walkways in power plants
Offshore Platforms
Marine-grade galvanized grating for oil rigs and offshore facilities
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