English 
简体中文 
CN
| Property | Parameter | Description |
|---|---|---|
| Product Name | Hot Dip Galvanized Color Coating Steel | Prepainted galvanized steel sheet/coil with hot-dip zinc base coating |
| Material Grade | DX51D+Z, DX52D+Z, SGCC, CS-B | Equivalent to EN 10346, JIS G3302, ASTM A653; base metal low carbon steel |
| Standard Compliance | ASTM A755M, EN 10169, JIS G3312, GB/T 12754 | International standards for prepainted hot-dip galvanized steel products |
| Chemical Composition (Base) | C ≤0.12%, Mn ≤0.60%, P ≤0.045%, S ≤0.045%, Si ≤0.50% | Low carbon steel substrate ensuring good formability and coating adhesion |
| Zinc Coating Mass | Z60–Z275 (g/m²); AZ50–AZ150 for Galvalume | Double-side coating per ASTM A653; higher coating weight improves corrosion resistance |
| Paint Coating Type | Polyester (PE), PVDF, SMP, HDP, Epoxy | Top coat 15–25 µm; primer 5–7 µm; back coat 5–12 µm; PVDF for superior weather resistance |
| Tensile Strength | 270–500 MPa (per EN 10346 / ASTM A653) | DX51D+Z: ≥270 MPa; DX52D+Z: ≥270 MPa; varies by grade and temper |
| Yield Strength | 140–420 MPa | DX51D+Z: 140–300 MPa; DX52D+Z: 140–300 MPa; suitable for roll forming and bending |
| Elongation | ≥22% (A80mm, per EN 10346) | Good ductility for profiling, roofing, and cladding applications |
| Thickness Range | 0.14–1.50 mm (base metal) | Total thickness including zinc and paint layers; standard tolerance ±0.02 mm |
| Width Range | 600–1,500 mm | Slit coil or full-width coil available; custom widths upon request |
| Coil Inner Diameter | 508 mm / 610 mm | Standard ID for coil; coil weight 3–8 MT per coil |
| Surface Finish | Smooth, Embossed, Matte, High Gloss | RAL color system available; 60° gloss value 10–85 GU; UV-resistant top coat |
| Application | Roofing, wall cladding, home appliances, garage doors, HVAC ducts, automotive parts | Widely used in construction, household appliances, and industrial sectors |
| Certification | ISO 9001, CE, SGS, RoHS | Mill test certificate (MTC) per EN 10204 3.1 available upon request |
| Packaging | Eye-to-sky or eye-to-wall coil; waterproof paper + steel strip strapping | Seaworthy export packaging; moisture-proof inner wrapping for ocean freight |
| MOQ | 25 MT per order | Mixed specifications accepted; sample order negotiable for new customers |
Initial Width Tolerance Issue — Resolved Quickly by Supplier
Our first order of 25 MT of 1,200 mm wide HDGCC coils for roofing sheet production arrived with three coils measuring 1,195–1,197 mm, slightly outside our agreed ±2 mm tolerance. I raised the issue with the sales team and they responded within hours, issued a credit note for the affected coils, and confirmed a process adjustment for subsequent orders. Our second shipment of 30 MT was fully within spec. The core product quality — Z120 zinc, 18 µm polyester topcoat, ASTM B117 salt spray compliance — is good. Communication after the issue was handled professionally.
Our first order of 25 MT of 1,200 mm wide HDGCC coils for roofing sheet production arrived with three coils measuring 1,195–1,197 mm, slightly outside our agreed ±2 mm tolerance. I raised the issue with the sales team and they responded within hours, issued a credit note for the affected coils, and confirmed a process adjustment for subsequent orders. Our second shipment of 30 MT was fully within spec. The core product quality — Z120 zinc, 18 µm polyester topcoat, ASTM B117 salt spray compliance — is good. Communication after the issue was handled professionally.
