Hot Dipped Galvanized Steel Coil with Z80-Z275 Zinc Coating for Roofing & Structural Fabrication and Regular Spangle Surface
Productdetails
| Product: | Warm gedompelde gegalvaniseerde stalen spoel | Cijfer: | DX51D+Z / DX52D+Z / DX53D+Z / SGCC / ASTM A653 |
|---|---|---|---|
| Zinklaag: | Z80 / Z100 / Z120 / Z180 / Z275 | Oppervlak: | Regelmatige lovertjes / nul lovertjes / geminimaliseerde lovertjes |
| Dikte: | 0,2 mm ~ 4,0 mm | Rand: | Molenrand Spleetrand |
| Materiaal: | Koudgewalste koolstofstalen basis | Oppervlaktebehandeling: | Geolied / droog / gechromateerd / anti-vingerafdruk |
| Markeren |
Hot Dipped Galvanized Steel Coil Z80,Galvanized Steel Coil for Roofing,Z275 Galvanized Steel Structural Coil |
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Productbeschrijving
Steel products are constantly exposed to moisture, temperature fluctuations, chemicals, and harsh outdoor environments. Without effective surface protection, oxidation begins quickly, leading to rust, higher maintenance costs, and reduced service life.
Hot Dipped Galvanized Steel Coil (GI Coil) is engineered to solve these challenges by applying a continuous zinc coating that protects the steel from corrosion while maintaining excellent mechanical strength and workability.
Whether your project involves roofing systems, steel structures, ventilation ducts, household appliances, or agricultural equipment, galvanized steel remains one of the most economical and dependable materials available.
Product Highlights
Unlike ordinary carbon steel, galvanized coils combine structural strength with long-lasting corrosion protection.
Excellent Corrosion Resistance
A uniform zinc coating creates an effective barrier against moisture and oxygen, helping steel remain stable even in demanding outdoor environments.
High Processing Efficiency
The material can be easily processed through:
Roll forming
Bending
Punching
Stamping
Welding
Laser cutting
making it suitable for automated production lines.
Stable Surface Quality
Available surface finishes include:
Regular Spangle
Zero Spangle
Minimized Spangle
Different finishes are selected according to painting, decorative, or industrial requirements.
Lower Life-Cycle Cost
Although galvanized steel costs slightly more than untreated steel, its significantly longer service life reduces replacement frequency and maintenance expenses.
| Item | Specification |
|---|---|
| Product Name | Hot Dipped Galvanized Steel Coil |
| Grade | SGCC / DX51D+Z / DX53D+Z |
| Standard | JIS G3302 / EN 10346 / ASTM A653 |
| Thickness | 0.3 – 4.0 mm |
| Width | 900 – 1500 mm |
| Zinc Coating | Z80 – Z275 |
| Surface | Zero Spangle / Regular Spangle |
| Surface Treatment | Oiled / Chromated / Passivated |
| Coil Weight | 3 – 10 Tons |
| Coil ID | 508 mm / 610 mm |
| Base Material | Cold Rolled Steel / Hot Rolled Steel |
Recommended Applications
Building & Construction
Galvanized steel is widely used in:
- Roofing sheets
- Steel frame buildings
- Ceiling systems
- Wall cladding
- Rainwater drainage systems
HVAC Industry
Its corrosion resistance makes it an ideal material for:
- Air ducts
- Ventilation systems
- Exhaust pipelines
- Air conditioning accessories
Home Appliance Manufacturing
Manufacturers choose galvanized steel for:
- Refrigerators
- Washing machines
- Microwave ovens
- Electrical cabinets
because of its smooth surface and excellent formability.
Industrial Equipment
Typical applications include:
- Storage racks
- Cable trays
- Agricultural machinery
- Warehouse shelving
- Electrical enclosures
The zinc coating delays oxidation and extends service life.
Even when the surface is damaged, surrounding zinc continues protecting exposed steel.
This makes galvanized steel ideal for outdoor and industrial environments where ordinary steel would corrode rapidly.
Selecting the right galvanized steel coil depends on environment, processing requirements, and end-use applications.
| Requirement | Recommended Option |
|---|---|
| General Construction | DX51D + Z120 |
| Roofing Sheets | Z180 / Z275 |
| Humid & Coastal Areas | Z275 |
| Deep Drawing Components | DX53D+Z |
| Decorative Surface | Zero Spangle |
| Appliance Use | Anti-fingerprint GI |
- Z80–Z120 → Indoor and dry environments
- Z180 → Roofing and outdoor use
- Z275 → Coastal and industrial areas
- Regular spangle → Standard industrial use
- Zero spangle → Painting and decorative applications
- DX51D → General forming
- DX53D → Better ductility and stamping performance
1. What is the difference between galvanized steel coil and cold rolled steel?
Cold rolled steel has no protective coating and can rust quickly in humid environments. Galvanized steel is coated with zinc, providing significantly better corrosion resistance and a longer service life.
2. Which zinc coating is recommended for outdoor roofing?
For most roofing applications, Z180 provides a good balance between durability and cost. In coastal or highly corrosive environments, Z275 is generally recommended.
3. How do I choose between DX51D+Z and DX53D+Z?
DX51D+Z is suitable for general bending and roll forming. DX53D+Z has higher ductility and is preferred for deep drawing, complex stamping, and components with demanding forming requirements.
4. Can galvanized steel coil be further processed into color-coated steel?
Yes. Galvanized steel serves as the substrate for PPGI (Prepainted Galvanized Steel Coil) after surface pretreatment and coating, making it suitable for architectural and decorative applications.
5. Is regular spangle or zero spangle better?
Regular spangle is commonly used for roofing, structural components, and industrial products. Zero spangle provides a smoother surface, making it a better choice for painting, appliance manufacturing, and decorative applications.
6. Do you provide customized galvanized steel coils?
Yes. We offer customized thickness, width, zinc coating weight, surface finish, slit coils, cut-to-length sheets, and export packaging according to project requirements.
Producthoogtepunten
Hot Dipped Galvanized Steel Coil Z80-Z275 For Roofing,Structural Fabrication & Industrial Manufacturing Product Overview Steel products are constantly exposed to moisture, temperature fluctuations, chemicals, and harsh outdoor environments. Without effective surface protection, oxidation begins ...
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