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| Property | Parameter | Description |
|---|---|---|
| Product Name | Outdoor Building Color Coated Coil | Pre-painted steel coil for exterior architectural applications |
| Material Grade | DX51D+Z, DX52D+Z, S250GD, S280GD, S320GD, S350GD | Equivalent to ASTM A755M, JIS G3312, EN 10169 grades |
| Standard Compliance | EN 10169, ASTM A755M, JIS G3312, GB/T 12754 | Meets international standards for prepainted flat-rolled steel |
| Chemical Composition | C ≤0.12%, Mn ≤0.60%, P ≤0.045%, S ≤0.045%, Si ≤0.50% | Base metal composition per EN 10169 / GB/T 12754 |
| Tensile Strength | 270–560 MPa | Varies by grade; S350GD achieves up to 560 MPa per EN 10169 |
| Yield Strength | 250–420 MPa | Minimum yield strength per grade designation (e.g., S350GD: ≥350 MPa) |
| Elongation | ≥16% (A80mm) | Measured on 80 mm gauge length per EN ISO 6892-1 |
| Base Metal Thickness | 0.20–1.50 mm | Total thickness including coating; substrate thickness range |
| Coil Width | 600–1,500 mm | Custom slit widths available upon request |
| Coating Type | Polyester (PE), PVDF, SMP, HDP | PVDF recommended for high UV resistance in outdoor environments |
| Coating Thickness | Top coat: 15–25 μm; Back coat: 5–15 μm | PVDF top coat ≥25 μm for superior weatherability |
| Zinc/Galvanized Layer | Z60–Z275 g/m² (AZ50–AZ150 for Galvalume) | Hot-dip galvanized or Galvalume substrate per EN 10346 / ASTM A792M |
| Surface Finish | Smooth, embossed, matte, high-gloss, woodgrain | RAL/custom color matching available; gloss level 10–85 GU |
| Application | Roofing, wall cladding, facades, gutters, canopies, prefab buildings | Suitable for commercial, industrial, and residential outdoor structures |
| Certification | ISO 9001, CE Marking, SGS, BV | Third-party inspection and mill test certificates available |
| Packaging | Eye-to-sky or eye-to-wall coil packaging; waterproof paper + steel strip | Suitable for sea freight and long-distance transportation |
| MOQ | 25 metric tons per color/specification | Mixed container orders accepted; lead time 15–25 days |
Initial Color Variance Issue — Resolved Professionally by Supplier
Ordered 15 tons of 0.55 mm PVDF coated coil in RAL 5015 sky blue for a commercial roofing project in Brisbane. Upon receipt, two coils showed a slight color shift compared to the approved sample — visible under direct sunlight. I raised this immediately with the technical team, who responded within 4 hours, acknowledged the variance, and arranged replacement coils within 12 days at no additional cost. The replacement material was spot-on. GB/T 12754 certificates and ASTM B117 salt spray data were all in order. The after-sales handling restored my confidence. Will consider reordering.
Ordered 15 tons of 0.55 mm PVDF coated coil in RAL 5015 sky blue for a commercial roofing project in Brisbane. Upon receipt, two coils showed a slight color shift compared to the approved sample — visible under direct sunlight. I raised this immediately with the technical team, who responded within 4 hours, acknowledged the variance, and arranged replacement coils within 12 days at no additional cost. The replacement material was spot-on. GB/T 12754 certificates and ASTM B117 salt spray data were all in order. The after-sales handling restored my confidence. Will consider reordering.
