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| Property | Parameter | Description |
|---|---|---|
| Product Name | Metal Roofing Sheets for Residential Buildings | Corrugated / standing seam / ribbed profile metal roof panels for homes |
| Material Grade | DX51D+Z / S280GD+Z / G550 (Zincalume) | Equivalent to ASTM A653 CS / SS Grade 33; EN 10346 DX51D+Z; AS 1397 G550 |
| Standard Compliance | ASTM A653 / EN 10346 / JIS G3302 / GB/T 2518 | Hot-dip galvanized / Galvalume / color-coated steel strip standards |
| Chemical Composition (C) | ≤ 0.12% | Low carbon content ensures formability and corrosion resistance |
| Chemical Composition (Mn, P, S) | Mn ≤ 0.60%; P ≤ 0.045%; S ≤ 0.045% | Controlled impurity levels per EN 10346 / ASTM A653 |
| Zinc / Coating Mass | Z100–Z275 g/m² (both sides) / AZ150 Galvalume | Minimum coating mass per ASTM A653 G60–G90 or EN 10346 Z100–Z275 |
| Tensile Strength | 270–550 MPa | DX51D: ≥ 270 MPa; S280GD: ≥ 360 MPa; G550: ≥ 550 MPa (AS 1397) |
| Yield Strength | 140–550 MPa | DX51D: ≥ 140 MPa; S280GD: ≥ 280 MPa; G550: ≥ 550 MPa |
| Elongation | ≥ 12–22% | DX51D: ≥ 22%; S280GD: ≥ 16%; varies by grade and thickness |
| Thickness Range | 0.30 mm – 0.80 mm (base metal) | Common residential gauges: 0.40 mm, 0.47 mm, 0.55 mm, 0.70 mm |
| Sheet Width | 600 mm – 1250 mm (coil width); effective cover 760–1000 mm | Profile-dependent effective cover width after roll forming |
| Sheet Length | 1800 mm – 12000 mm (custom cut-to-length) | Standard lengths 1.8 m–6 m; custom lengths available per project |
| Surface Finish | Hot-dip galvanized / Galvalume / PVDF / PE color-coated | PVDF coating: 25 µm topcoat; PE coating: 20 µm; RAL color options available |
| Application | Residential roofing, gable ends, wall cladding | Suitable for pitched roofs (min. slope 5°), villas, townhouses, rural homes |
| Certification | ISO 9001 / CE Marking / FM Approval / COLORBOND® equivalent | Third-party tested for wind uplift, fire resistance (Class A), and weathering |
| Packaging | Bundled in steel-strapped packs; waterproof PE film wrapped | Interleaved with protective paper; palletized for container loading |
| MOQ | 5 metric tons per order | Mixed profiles and colors accepted above MOQ; sample orders negotiable |
Initial length tolerance issue — resolved promptly, quality otherwise fine
Ordered standing-seam panels, 0.6 mm Galvalume, 9 000 mm length, for a modern residential build in Colorado. First batch had roughly 8% of panels measuring 9 012–9 018 mm — outside the ±0.5 mm tolerance stated. Flagged it immediately; the supplier acknowledged the roll-forming calibration drift, issued replacement panels within 12 days, and provided a partial credit. Coating quality and ASTM A653 compliance were never in question. Issue appears to have been an isolated production run problem. Subsequent delivery was fully within spec. Cautiously optimistic for future orders.
Ordered standing-seam panels, 0.6 mm Galvalume, 9 000 mm length, for a modern residential build in Colorado. First batch had roughly 8% of panels measuring 9 012–9 018 mm — outside the ±0.5 mm tolerance stated. Flagged it immediately; the supplier acknowledged the roll-forming calibration drift, issued replacement panels within 12 days, and provided a partial credit. Coating quality and ASTM A653 compliance were never in question. Issue appears to have been an isolated production run problem. Subsequent delivery was fully within spec. Cautiously optimistic for future orders.
