Stop Using Ordinary GI for Coastal Projects – Upgrade to ZAM (Zinc-Aluminum-Magnesium) Coated Steel

Standard galvanized steel works well – until it meets salt spray, high humidity, or harsh industrial environments. If your projects face corrosion challenges, it’s time to upgrade to ZAM (Zinc‑Aluminum‑Magnesium) coated steel.

ZAM is not just another coating. It is a high-performance alloy layer (Zn – 2.0‑11% Al – 1.5‑3% Mg) that fundamentally changes how the steel resists corrosion.

✅ Cut‑edge self‑healing – When the sheet is cut, the exposed edge forms a dense, stable corrosion product (Zn₅(OH)₈Cl₂·H₂O) that seals the cut and prevents red rust from spreading.

✅ Neutral salt spray test (NSS) performance – ZAM275 can withstand 1,400+ hours before red rust appears, while standard Z275 GI fails before 500 hours.

✅ Lower friction coefficient – Better formability, less die wear, and fewer surface defects during stamping and profiling.✅ Excellent weldability and paint adhesion

 – Compatible with standard welding and coating lines without process changes.

CNB Group now supplies ZAM steel coils in thicknesses from 0.3mm to 3.0mm, widths up to 1250mm, and coating weights from ZM80 to ZM275. Surface treatments available: chromated, anti‑fingerprint, oiled, or un oiled.

Don’t let corrosion eat into your product lifespan and your profit. Request a ZAM sample and compare it yourself.

📩 Send us your required grade, size, and quantity – we will tailor a ZAM solution for you.