Why is steel grating hot-dip galvanized?
Hot-dip galvanizing applies a zinc coating to fabricated steel to provide barrier and cathodic corrosion protection. ASTM A123/A123M is a common specification for fabricated iron and steel products; suitability and service life depend on the coating, environment and project requirements.
During hot-dip galvanizing, prepared steel is immersed in molten zinc and zinc-iron alloy layers form on the surface. The resulting coating provides barrier protection and sacrificial action, but damaged areas still require inspection and may require repair under the governing specification.
Coating life varies with coating characteristics, moisture, contaminants, abrasion, detailing and maintenance. Compare galvanized steel, stainless steel and FRP against the documented exposure rather than relying on a universal life claim.
Review galvanizing standards and scope →
Related questions
Get a supplier-direct grating quote
Steel or FRP, custom-made to your spec. Send a drawing or requirement for a fast quote.
Request a Quote →