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| Property | Parameter | Description |
|---|---|---|
| Product Name | Prefab House Color Steel Sheet | Pre-painted galvanized/galvalume steel sheet for prefabricated building panels |
| Material Grade | DX51D, S280GD, S350GD / SGCC, SGCH | International equivalents: DX51D+Z (EN), SGCC (JIS G3302), CS Type B (ASTM A653) |
| Standard Compliance | EN 10346, JIS G3302, ASTM A653, GB/T 12754 | Meets international standards for hot-dip zinc-coated and pre-painted steel coils |
| Chemical Composition (C) | ≤ 0.12% | Low carbon content ensures good formability and weldability |
| Chemical Composition (Mn) | ≤ 0.60% | Manganese content for structural strength |
| Chemical Composition (P/S) | P ≤ 0.045%, S ≤ 0.045% | Controlled phosphorus and sulfur for improved ductility |
| Tensile Strength | 270–560 MPa | Varies by grade; S280GD: ≥ 360 MPa, S350GD: ≥ 420 MPa (per EN 10346) |
| Yield Strength | 280–420 MPa | S280GD: ≥ 280 MPa; S350GD: ≥ 350 MPa; suitable for structural panel applications |
| Elongation | ≥ 16–20% | Minimum elongation at fracture (A80mm) ensuring panel formability |
| Zinc Coating Weight | Z60–Z275 g/m² (AZ50–AZ150 for Galvalume) | Double-side coating; heavier coating for enhanced corrosion resistance in outdoor use |
| Thickness Range | 0.3–1.2 mm | Common prefab panel thickness: 0.4 mm, 0.5 mm, 0.6 mm; custom available |
| Width Range | 600–1250 mm | Standard coil width; slit-to-width service available per project requirement |
| Surface Finish | PVDF / PE / SMP coating, 2-coat or 3-coat system | Top coat 20–25 μm; primer 5–7 μm; RAL color customizable; gloss level 10–80% |
| Application | Prefab house wall panels, roof panels, sandwich panels, modular buildings | Widely used in residential, industrial, commercial prefabricated structures |
| Certification | ISO 9001, CE Marking, SGS, BV | Third-party inspection available; RoHS compliant coating options |
| Packaging | Steel coil on wooden pallet, eye-to-sky or eye-to-wall, waterproof paper wrapped | Coil weight: 3–8 MT; inner diameter: 508 mm or 610 mm |
| MOQ | 25 MT per order | Mixed colors and specifications accepted above MOQ; sample available upon request |
Initial profiling issue resolved — quality now meets spec
Ordered 30 tons of 0.45 mm corrugated color steel sheet for temporary modular storage units. First delivery batch had inconsistent rib height — measured 1.5 mm below drawing spec on approximately 15% of panels, which would have caused fit issues during assembly. Raised the issue immediately with the technical team. They responded within 4 hours, arranged re-rolling of the affected panels, and shipped replacements within 6 business days at no additional cost. Replacement panels measured within ±0.3 mm of spec. The resolution process was handled professionally. Willing to reorder given how the problem was managed.
Ordered 30 tons of 0.45 mm corrugated color steel sheet for temporary modular storage units. First delivery batch had inconsistent rib height — measured 1.5 mm below drawing spec on approximately 15% of panels, which would have caused fit issues during assembly. Raised the issue immediately with the technical team. They responded within 4 hours, arranged re-rolling of the affected panels, and shipped replacements within 6 business days at no additional cost. Replacement panels measured within ±0.3 mm of spec. The resolution process was handled professionally. Willing to reorder given how the problem was managed.
