Hot-Dip Galvanized Steel Coil 0.12-6.0mm Thickness with 30-275g/m² Zinc Coating for Custom Corrugated Roof Sheets
Hot-dip galvanizing involves the reaction of molten zinc with an iron substrate to create a protective alloy layer. This process begins with pickling to remove surface oxides, followed by cleaning in specialized solutions, and finally immersion in the galvanizing bath. The result is a coating with uniform thickness, strong adhesion, and exceptional durability for long-term protection.
| Parameter | Specifications |
|---|---|
| Technical Standards | EN10147/EN10142/DIN 17162/JIS G3302/ASTM A653 |
| Steel Grades | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC490, SGC570; SQ CR22 (230), SQ CR33 (230), SQ CR37 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550); CQ, FS, DDS, EDDS; or Customer's Requirement |
| Available Forms | Coil/Sheet/Plate/Strip |
| Thickness Range | 0.12–6.0mm or custom specifications |
| Width Range | 600–1500mm according to customer requirements |
| Coating Type | Hot Dipped Galvanized Steel (HDGI) |
| Zinc Coating Weight | 30–275g/m² |
| Surface Treatment | Passivation (C), Oiling (O), Lacquer sealing (L), Phosphating (P), Untreated (U) |
| Surface Structure | Normal spangle coating (NS), minimized spangle coating (MS), spangle-free (FS) |
| Quality Certifications | SGS, ISO Approved |
| Inner Diameter (ID) | 508mm / 610mm |
| Coil Weight | 3–20 metric tons per coil |
- Dual Protection: Combines physical barrier protection with electrochemical zinc protection for superior corrosion resistance
- Excellent Machinability: Suitable for rolling, coiling, and various fabrication processes
- Superior Thermal Resistance: Maintains performance up to 315°C for extended periods
- High Reflectivity: Reflects over 70% of heat and light, making it ideal for energy-efficient construction applications
Standard packaging includes waterproof paper inner layer, galvanized steel outer protection, side guard plates, and secure wrapping with seven steel belts. Custom packaging available per customer requirements.
Shandong Dingcheng Liye Material Company, established in 2015, specializes in carbon steel, alloy steel, galvanized steel pipes, tubes, plates, coils, and profiles. Located in Shandong Province near Qingdao Seaport for efficient logistics, we maintain over 15,000 tons of standing inventory and serve major engineering projects worldwide with complete specifications and reliable supply.
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