Z275 Heavy Coated Galvanized Steel Coil For Coastal Guardrails

Detalhes do produto:

Lugar de origem: China
Marca: HUIYI-GI
Certificação: EN 10346, ASTM A653, ISO 9001, AASHTO M180
Número do modelo: Dx51d+z
Documento: HUIYI CATALOGUE.pdf

Condições de Pagamento e Envio:

Quantidade de ordem mínima: 25 toneladas
Preço: Negotiated Price, USD/MT
Detalhes da embalagem: Pacote de exportação padrão, embrulhado com papel à prova d'água. Depois, depois de totalmente e
Tempo de entrega: 15-45 dias
Termos de pagamento: L/C,T/T,D/P
Habilidade da fonte: 5.000 toneladas por mês
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Informação detalhada

Nome do produto: Bobina de aço galvanizado Grossura: 0.3 - 5.0mm
Largura: 600 mm - 1500 mm Revestimento: 60g/㎡-600g/㎡
Peso da bobina: 3 a 8 toneladas Força de rendimento (ReH): 140 – 550 MPa
Resistência à tração (Rm): 260 – 750 MPa Recurso principal: Revestimento Z275 pesado – mais de 1.500 horas de resistência à névoa salina (ASTM B117)

Descrição de produto

Z275 Heavy Coated Galvanized Steel Coil For Coastal Guardrails
Our Z275 Heavy Coated Galvanized Steel Coil is engineered for coastal guardrails, where chlorides, road salts, and ocean mist accelerate corrosion. Through continuous hot-dip galvanizing at ~450°C, the Z275 coating (275 g/m² double‑sided, ~20µm per side) provides dual‑phase protection: a physical barrier and sacrificial zinc protection that even protects cut edges. Under ASTM B117 salt spray testing, Z275 typically resists white rust for 1,000+ hours and red rust for over 1,500 hours (vs. 500‑800 hours for Z120), with some products passing 3,000 hours. This yields 20‑25 years of maintenance‑free service, making Z275 the preferred choice for AASHTO M180‑compliant coastal guardrails.
Hot-dipped galvanized steel coil product display
Product Specifications
Product Type Coil / Sheet / Strip
Base Material / Grade DX51D+Z / SGCC / Q235
Thickness 0.3 - 5.0mm
Width 600mm - 1500mm
Zinc Coating 60 - 600 g/m²
Inner Diameter 508/610mm
Surface Treatment Chromated passivation / Oiled / Anti-fingerprint (optional)
Spangle Zero / Small / Regular / Large
Main Applications

· Coastal Guardrail Systems: Primary material for W‑beam and Thrie‑beam guardrails, transition sections, end terminals, and crash barriers along coastal highways where exposure to salt spray, high humidity, and de‑icing chemicals accelerates corrosion .

· Bridge Railings & Parapets: Safety barriers on bridges and overpasses exposed to splashing seawater, road salts, and splashback from passing vehicles.

· Highway Signage Gantries & Structural Supports: Overhead sign structures and roadside poles where structural integrity must withstand both corrosion and traffic pollution .

· Noise Barriers & Wind Shields: Steel panel systems installed in coastal corridors requiring heavy‑duty corrosion protection against salt‑laden winds .

Galvanized steel coil applications in various industries
Packing & Shipping

Triple-Shield Packaging

VCI anti-rust kraft paper inner layer, 0.3mm PE waterproof film with moisture indicators, steel-strapped pallets + edge guards (max. 8-ton coils).

Global Logistics

FOB/CIF from Chinese ports; 15-20 day delivery for Asia, 30-45 days globally.

Quality Assurance

Pre-shipment inspection and moisture indicators for transit protection.

Professional packaging and shipping methods for steel coils
FAQ

Do you provide samples?

Yes, for regular sizes sample is free, buyer need to pay freight cost.

How can I get a quotation?

You can leave us message, and we will reply in time. And you can also find our contact details on the Contact page.

How long is the delivery time?

It depends on the order quantity, normally the delivery time takes around 15-30 working days. Please kindly contact us before ordering.

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