| Property | Parameter | Description |
|---|---|---|
| Product Name | Hot Rolled Steel Coil for Construction | Carbon steel coil manufactured through hot rolling process |
| Material Grade | Q235B / Q345B / SS400 / S275JR / ASTM A36 | International grade equivalents for construction steel |
| Standard Compliance | GB/T 700, ASTM A36, EN 10025, JIS G3101 | Meets major international construction standards |
| Manufacturing Process | Hot Rolled | Heated above recrystallization temperature and rolled |
| Carbon (C) | ≤0.20% | Carbon content for optimal strength and weldability |
| Manganese (Mn) | 0.30-0.70% | Improves strength and hardenability |
| Phosphorus (P) | ≤0.045% | Controlled for ductility and toughness |
| Sulfur (S) | ≤0.050% | Low sulfur ensures good weldability |
| Silicon (Si) | ≤0.30% | Deoxidizer and strengthening element |
| Tensile Strength | 370-500 MPa | Minimum tensile strength per construction standards |
| Yield Strength | ≥235 MPa (Q235B) / ≥345 MPa (Q345B) | Minimum yield strength varies by grade |
| Elongation | ≥26% | Ductility in 50mm gauge length |
| Thickness Range | 1.2 - 25.4 mm | Available thickness options for construction |
| Width Range | 600 - 2000 mm | Standard coil widths |
| Coil Weight | 3 - 25 tons | Typical coil weight range |
| Surface Finish | Black, Pickled, Oiled | Multiple surface treatment options |
| Application | Building structures, bridges, warehouses, steel frames | Typical construction applications |
| Certification | EN 10204 3.1, ISO 9001, CE marking | Quality certifications provided |
| Packaging | Steel strapping, waterproof covering, wooden pallet | Standard export packaging for coils |
| MOQ | 25 tons | Minimum order quantity per specification |
Ordered 25 tons (6mm thickness, 1500mm width) for São Paulo infrastructure project. Material quality met ASTM specifications with yield strength at 51 ksi. Initial delivery estimate was 35 days but extended to 48 days due to shipping logistics. Supplier proactively communicated delays and offered partial air freight at no extra cost for 5 tons. Surface condition adequate for painted structural applications. Issue resolved professionally. Would consider for future orders with longer lead time planning.


