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| Property | Parameter | Description |
|---|---|---|
| Product Name | High Quality Checkered Steel Coil | Hot rolled carbon steel coil with raised diamond/tear drop pattern |
| Material Grade | Q235B / SS400 / A36 / S235JR | International grade equivalents for checkered coil |
| Standard Compliance | GB/T 3277, JIS G3131, ASTM A786, EN 10025 | Meets major international standards |
| Manufacturing Process | Hot Rolled + Pattern Embossing | Continuous hot rolling with checkered pattern forming |
| Carbon (C) | ≤0.20% | Carbon content for formability and weldability |
| Manganese (Mn) | 0.30-1.40% | Improves strength and hardenability |
| Phosphorus (P) | ≤0.045% | Controlled for ductility |
| Sulfur (S) | ≤0.045% | Low sulfur for improved weldability |
| Silicon (Si) | ≤0.35% | Deoxidizer and strengthener |
| Tensile Strength | 370-500 MPa | Typical range per Q235B / SS400 standard |
| Yield Strength | ≥235 MPa | Minimum yield strength at 16mm base thickness |
| Elongation | ≥26% | Ductility in 50mm gauge length |
| Base Thickness | 1.5 - 8.0 mm | Thickness of base plate excluding pattern height |
| Pattern Height | 0.5 - 2.0 mm | Raised checkered pattern above base surface |
| Width Range | 1000 - 1500 mm | Standard widths: 1000mm, 1219mm, 1250mm, 1500mm |
| Pattern Type | Diamond, Tear Drop, Lentil, Five-bar | Multiple anti-slip pattern options available |
| Application | Flooring, Stairways, Truck Beds, Construction Platforms | Anti-slip surfaces for industrial and architectural use |
| Certification | EN 10204 3.1, ISO 9001, SGS | Quality certifications provided |
| Packaging | Eye-to-sky or eye-to-wall on steel pallet | Standard seaworthy export packaging |
| MOQ | 5 tons | Minimum order quantity |
Acceptable Checkered Coil Quality, Delivery Delay Resolved
Ordered 6 tons of Q235B checkered steel coil, 1.5mm base thickness, 1000mm width for light-duty platform grating. Material quality itself was acceptable — yield strength at 237 MPa and pattern height within the 0.5–1.5mm range per the certificate. However, the custom-rolled order arrived on day 28 instead of the quoted 15–25 days, which caused a minor delay on our installation schedule. When we raised the issue, the sales team acknowledged the production delay and provided a partial freight credit, which was a fair resolution. The coil surface had one small oiling inconsistency on the outer wrap but nothing that affected usability. Would consider reordering if lead times improve.
Ordered 6 tons of Q235B checkered steel coil, 1.5mm base thickness, 1000mm width for light-duty platform grating. Material quality itself was acceptable — yield strength at 237 MPa and pattern height within the 0.5–1.5mm range per the certificate. However, the custom-rolled order arrived on day 28 instead of the quoted 15–25 days, which caused a minor delay on our installation schedule. When we raised the issue, the sales team acknowledged the production delay and provided a partial freight credit, which was a fair resolution. The coil surface had one small oiling inconsistency on the outer wrap but nothing that affected usability. Would consider reordering if lead times improve.
