Heavy Zinc Z275 Corrugated Steel Sheet – Coastal & Agricultural Grade
Product Overview
Heavy zinc coated corrugated steel sheet is a premium corrosion-resistant building material designed for harsh outdoor environments. Built on S250GD structural grade steel with Z180–Z275g/m² heavy hot-dip galvanized coating, it delivers superior cut-edge corrosion protection and higher structural strength compared with standard GI sheets. This grade is specifically engineered for coastal regions, agricultural facilities and industrial areas where standard zinc coatings cannot provide sufficient service life.
Why Choose CNB Heavy Zinc Corrugated Sheets?
We use only heavy-galvanized base coils with verified zinc coating mass and adhesion, ensuring consistent corrosion performance across the full sheet surface. Our roll forming lines are specially tuned for thick zinc coatings, preventing zinc flaking or cracking during forming. Every sheet undergoes edge quality inspection and coating integrity verification, delivering reliable long-term performance in high-corrosion environments.
Key Specifications
| Item | Specification |
|---|---|
| Product Name | Heavy Zinc Galvanized Corrugated Steel Sheet |
| Base Steel Grade | S250GD Structural Grade |
| Corrugation Profile | Trapezoidal (32mm / 50mm height options) |
| Base Thickness Range | 0.3mm – 1.2mm |
| Total Sheet Width | 1000mm / 1250mm |
| Effective Cover Width | 900mm / 1150mm |
| Zinc Coating Mass | Z180 – Z275g/m² (double side) |
| Standard Lengths | 2m – 12m custom cut |
| Surface Finish | Regular / minimized spangle |
| Applicable Standards | ASTM A653, EN 10346 |
| Minimum Yield Strength | ≥250MPa |
| Typical Service Life | 15–20 years (coastal / agricultural) |
Core Advantages
- Heavy corrosion protection: 2–3x longer service life than standard Z100 sheets in harsh environments.
- Structural strength: S250GD grade supports longer spans and higher snow/wind loads.
- Agriculture-resistant: Withstands ammonia, animal waste and farm chemical exposure.
- Edge corrosion resistance: Heavy zinc provides superior protection at cut edges and drill holes.
- Proven farm performance: Widely adopted in livestock and poultry barn projects worldwide.
Applications
This heavy zinc corrugated sheet is widely used for coastal building roofing, agricultural barns, poultry houses, farm storage sheds, industrial plant cladding, salt storage facilities and fencing in high-corrosion regions.
Get a Quotation
We supply heavy zinc corrugated steel sheets in various coating weights, strength grades and profiles for harsh environment projects. Corrosion test reports and project-specific material recommendations are available upon request. Contact our construction team for a tailored quotation.
