Z180 DX51D Hot Dipped Galvanized Steel Coil for Roofing Sheets
Product Details
| Articolo: | Dx51D ha galvanizzato le bobine d'acciaio | Trattamento superficiale: | Cromato/Oliato/Anti-impronta |
|---|---|---|---|
| Strato di zinco: | 30-275g | Superficie: | Lustrino normale o come richiesto |
| Spessore: | 0,12 mm~3,0 mm | Bordo: | Bordo tagliato con bordo fresato |
| Materiale: | Base in acciaio al carbonio laminato a freddo | Grado: | DX51D, DX52D, DX5D, SGCC, G550 |
Descrizione del prodotto
Hot dipped galvanized steel coil is a carbon steel product coated with a protective zinc layer through a continuous hot-dip galvanizing process. The zinc coating acts as a barrier against moisture and corrosion, significantly improving the service life of the steel.
Our DX51D galvanized steel coils are manufactured using advanced galvanizing production lines to ensure stable coating adhesion, uniform spangle, and reliable mechanical performance. With coating options ranging from Z60 to Z275, these coils are widely used in roofing systems, wall cladding, HVAC ducts, steel structures, and industrial fabrication.
Compared with untreated cold rolled steel, galvanized steel provides better durability, lower maintenance costs, and improved weather resistance, making it one of the most widely used coated steel materials in the construction and manufacturing industries.
Traditional carbon steel is highly vulnerable to oxidation when exposed to moisture, oxygen, and industrial pollutants. In outdoor environments, especially in humid or coastal regions, unprotected steel can quickly develop rust, resulting in:
- Reduced structural strength
- Surface corrosion and staining
- Increased maintenance costs
- Shortened product lifespan
For roofing panels, construction materials, and industrial equipment, corrosion protection is critical to maintaining long-term performance and appearance.
Galvanized steel coil solves corrosion problems by applying a zinc coating onto the steel surface.
The zinc layer provides:
- Barrier Protection — preventing direct contact between steel and the environment
- Sacrificial Protection — zinc corrodes first to protect the steel substrate
- Extended Service Life — suitable for long-term outdoor applications
- Improved Processability — easy for bending, roll forming, and stamping
For projects requiring enhanced durability, higher zinc coatings such as Z180 or Z275 are recommended.
| Item | Value |
|---|---|
| Standard | EN 10346 |
| Place of Origin | China |
| Zinc Coating | Z80~275 |
| Type | Steel Coil |
| Technique | Cold Rolled |
| Surface Treatment | Chromated / Oiled / Anti-fingerprint |
| Application | Roofing sheets / corrugated sheets / Steel structures |
| Special Use | High-strength Steel Plate |
| Width | 0.6m-3m or as required |
| Length | 4m-12m or as required |
| Tolerance | ±1% |
| Type | Hot-Galvanized Steel Coils |
| Grade | DX51D+Z |
| Property | Value |
| Yield Strength | ≥140 Mpa |
| Tensile Strength | 270~350 Mpa |
| Elongation | ≥26% |
Suitable for deep drawing and forming applications
Galvanized steel coil is widely used in multiple industries due to its corrosion resistance and processing flexibility.
- Roofing sheets
- Wall cladding panels
- Steel structure buildings
- Ceiling systems
- Washing machine panels
- Refrigerator back panels
- Air conditioning systems
- Ventilation ducts
- Electrical cabinets
- Storage racks
- Highway guardrails
- Cable trays
- Industrial containers
To ensure the product arrives in perfect condition:
- Inner Packaging: Anti-rust oil film + water-proof kraft paper
- Outer Packaging: Galvanized steel sheet wrapping + iron rings reinforcement
- Loading: Standard export sea-worthy packaging
Port of Loading: Tianjin / Shanghai / Qingdao, China
Delivery Time: 15-25 days after receiving deposit or LC
Choosing the right galvanized steel coil depends on application environment, lifespan requirements, and processing needs.
| Application Requirement | Recommended Specification |
|---|---|
| General Indoor Use | Z60 – Z80 |
| Roofing & Outdoor Panels | Z120 – Z180 |
| Coastal & Humid Areas | Z180 – Z275 |
| Deep Drawing Parts | DX51D Grade |
| Structural Applications | DX51D / S350GD |
Higher zinc coating means better corrosion resistance.
- Regular spangle → Standard applications
- Zero spangle → Painting and appliance use
- DX51D → General forming
- DX53D → Deep drawing and stamping
Galvanized steel coil is steel coated with zinc through a hot-dip galvanizing process to improve corrosion resistance.
Z180 indicates a zinc coating weight of 180 g/m² on both sides of the steel sheet.
Galvanized steel uses pure zinc coating, while galvalume steel uses aluminum-zinc alloy coating with higher corrosion resistance.
Z120 to Z275 coatings are commonly recommended for roofing applications depending on climate conditions.
Yes, galvanized steel can be painted or further processed into PPGI products.
Product Highlights
Z180 DX51D Hot Dipped Galvanized Steel Coil for Roofing Sheets Product Overview Hot dipped galvanized steel coil is a carbon steel product coated with a protective zinc layer through a continuous hot-dip galvanizing process. The zinc coating acts as a barrier against moisture and corrosion, ...
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