High Quality Hot-Dip Galvanized Steel Coil – DX51D SGCC – 0.12-4.0mm – for Construction & Home Appliance
Product Advantages
Excellent rust and corrosion resistance：The zinc coating effectively isolates air and moisture, significantly extending the service life of the steel.
Strong zinc adhesion, no peeling：Through a strict hot-dip galvanizing process, the zinc coating bonds firmly with the base metal, suitable for stamping, bending, and other subsequent processing.
Smooth surface, zero spangle available：Offers regular spangle, minimized spangle, and zero spangle options to meet various appearance and painting requirements.
Good workability：Supports stamping, bending, deep drawing, and other forming operations, suitable for complex part manufacturing.
Compliant with international standards：Products are manufactured and tested in strict accordance with ASTM, JIS, EN, GB, and other standards.
Various post-treatments available：Passivation, anti-fingerprint, oiling, and other surface treatments are available to suit different storage and application environments.
Production Process
Product Attributes
| Property | Specifications Range |
|---|---|
| Thickness | 0.12mm – 4.0mm |
| Width | 600mm – 1500mm |
| Coil Weight | 3 – 15 tons |
| Coating Mass | Z40 – Z275 (g/m²) |
| Surface Treatment | Passivation / Anti-fingerprint / Oiling / None |
| Surface Finish | Regular Spangle / Minimized Spangle / Zero Spangle / Galvannealed |
| Base Metal | DX51D, DX52D, DX53D, SGCC, SGCH, Q235 |
Specification Table
| Thickness (mm) | Width (mm) | Coating (g/m²) | Grade | Spangle Type |
|---|---|---|---|---|
| 0.15 | 1000 | Z40 | DX51D | Zero |
| 0.30 | 1219 | Z60 | SGCC | Regular |
| 0.50 | 1250 | Z100 | DX51D | Zero |
| 0.80 | 1219 | Z140 | DX52D | Small |
| 1.20 | 1250 | Z180 | SGCH | Zero |
| 2.00 | 1500 | Z225 | Q235 | Regular |
| 3.00 | 1500 | Z275 | DX51D | Zero |
Galvanized type
Hot-Dip Galvanizing: The steel coil is immersed in molten zinc, forming a thick zinc layer with strong anti-corrosion properties.
Electro-Galvanizing: A thinner zinc layer is applied to the steel coil surface through electrolysis, resulting in a smoother finish suitable for precision processing.
Packaging & Shipping
Applications
|
Construction |
Used for roofing, wall panels, and steel structures, providing excellent corrosion resistance. |
|
Household Appliances |
Used in the manufacturing of refrigerator, washing machine, and air conditioner exteriors, offering both corrosion protection and aesthetic appeal. |
|
Automotive |
Used for body panels, chassis, and other components to enhance corrosion resistance. |
|
Industrial |
Used in the production of ventilation ducts, cable trays, and storage equipment, suitable for various industrial environments |
FAQ
Q1: Will galvanized steel coil rust?
A1: Under normal conditions, the zinc coating provides good rust protection. For coastal or high-humidity environments, a thicker coating (e.g., Z275) is recommended.
Q2. What is zero spangle?
A2:Zero spangle means no visible crystalline pattern on the zinc surface, achieved by controlled cooling. It provides a smooth, uniform surface suitable for high-grade painting or home appliance exteriors.
- We have passed ISO9001, SGS, CE and other certifications;
- Always have pre-production samples before mass production,and always do final inspection before shipment;
- Acceptable third-party inspection.
Q3: Do you provide mill test certificates?
A3: Yes, each shipment comes with a Mill Test Certificate (MTC). EN 10204 Type 3.1 or SGS/BV third-party inspection reports are available upon request.
Q4: Can I visit your factory?
A4: Of course, we welcome customers from all over the world to visit our factory. However, some factories are not open to the public.
Q5: Do you offer slitting or cut-to-length services?
A5: Yes. Slitting, cut-to-length, and blanking services are available upon prior confirmation of specifications and quantity.
Q6: What is the shelf life of galvanized steel coil?
A6: Under dry, ventilated, indoor storage, the zinc coating can remain free of noticeable white rust for over 12 months. Avoid moisture and direct rain.