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| Property | Parameter | Description |
|---|---|---|
| Product Name | Anti Corrosion Color Coated Steel Coil | Pre-painted galvanized/galvalume steel coil with anti-corrosion coating |
| Material Grade | DX51D, DX52D, DX53D / SGCC, SGCD / CS Type A, B, C | Equivalent to EN 10346, JIS G3302, ASTM A653 substrate grades |
| Standard Compliance | ASTM A755, EN 10169, JIS G3312, GB/T 12754 | International standards for prepainted metallic coated steel flat products |
| Chemical Composition (Substrate) | C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.10%, S ≤ 0.045%, Si ≤ 0.50% | Base metal chemistry per EN 10346 / ASTM A653 for cold-rolled substrate |
| Coating Type | Polyester (PE), PVDF, SMP, HDP, Epoxy | Top coat options; PVDF offers superior UV and chemical resistance |
| Zinc/Zinc-Alloy Coating | Z60–Z275 g/m² (GI); AZ50–AZ150 g/m² (GL) | Hot-dip galvanized or Galvalume (55% Al-Zn) anti-corrosion base layer |
| Paint Thickness | Top coat: 15–25 µm; Primer: 5–7 µm; Back coat: 7–12 µm | Dry film thickness per EN 10169 / ASTM A755 measurement method |
| Tensile Strength | 270–560 MPa | Varies by substrate grade; DX51D min. 270 MPa per EN 10346 |
| Yield Strength | 140–420 MPa | DX51D: 140–300 MPa; structural grades up to 420 MPa |
| Elongation | ≥ 22% (A80mm) | DX51D per EN 10346; ensures formability for roll forming and bending |
| Thickness Range | 0.14–1.50 mm (base metal) | Total thickness including coating; custom thickness available on request |
| Width Range | 600–1,500 mm | Slit coil and full-width coil available; tolerance ±2 mm |
| Coil Weight | 3–10 MT per coil | Inner diameter 508 mm or 610 mm; outer diameter up to 1,500 mm |
| Surface Finish | Smooth, embossed, matte, high-gloss, stone/wood grain pattern | RAL color system available; gloss level 10–80 GU (60° angle) |
| Application | Roofing, wall cladding, home appliances, garage doors, HVAC ducts, containers | Widely used in construction, automotive, and industrial sectors |
| Certification | ISO 9001, SGS, BV, CE, RoHS | Third-party inspection and mill test certificate (MTC) available |
| Packaging | Eye-to-sky or eye-to-wall; waterproof paper + steel strip strapping | Seaworthy export packaging; moisture-proof inner wrapping included |
| MOQ | 25 MT per order | Mixed specifications accepted; sample coil available upon request |
Initial Color Variance Issue – Resolved Satisfactorily
Our first 30 MT order of 0.40 mm HDP-coated coil in RAL 5015 showed a slight gloss variation between two coils — measured at 42 GU versus the specified 35 GU. We flagged this immediately with supporting spectrophotometer data. The supplier's quality team responded within 24 hours, acknowledged the deviation, and arranged replacement coils plus a credit note within two weeks. Subsequent delivery matched specifications exactly. The resolution process was professional and fair. We've since placed a follow-up order; the issue appears to have been an isolated production batch problem.
Our first 30 MT order of 0.40 mm HDP-coated coil in RAL 5015 showed a slight gloss variation between two coils — measured at 42 GU versus the specified 35 GU. We flagged this immediately with supporting spectrophotometer data. The supplier's quality team responded within 24 hours, acknowledged the deviation, and arranged replacement coils plus a credit note within two weeks. Subsequent delivery matched specifications exactly. The resolution process was professional and fair. We've since placed a follow-up order; the issue appears to have been an isolated production batch problem.
