Engineered for Aggressive Farm & Solar Environments
Livestock buildings present one of the toughest environments for steel: high humidity, ammonia, manure acids, and constant abrasion. Standard GI fails within a few years. CNB’s ZAM steel, with its unique Mg‑enriched corrosion product, resists ammonia attack far better than GI. Combined with the self‑healing edge protection crucial for solar structures, it is the long‑term, low‑maintenance solution.

Technical Validation

• Ammonia Resistance Test: 5% NH₃ immersion 24h: ZM180 weight loss 1.02 g/m² vs. GI Z180 17.02 g/m².

• Cyclic Corrosion (CCT): After 54 cycles, ZM275 shows minimal edge creep; GI Z275 shows severe red rust.

• Outdoor Exposure: 5‑year Miyakojima island test confirms significant advantage over GI.

Applications

• Poultry & Swine Houses: Roofing, wall panels, slatted floor supports, feeding troughs.

• Dairy & Cattle Sheds: Structural frames, ventilation ducts, manure handling equipment.

• Solar PV Mounting: C‑section purlins, brackets, and ground screws for 25+ year design life.

• Highway Guardrails: Especially in regions with heavy de‑icing salt use.

Specifications for Agriculture & Solar

• Thickness: 0.4mm – 3.0mm

• Coating: ZM275, ZM310, ZM350 (ZN‑6Al‑3Mg type or customized)

• Grades: S280GD+ZM, S350GD+ZM, S420GD+ZM, S550GD+ZM