| Item | Detailed Description | Remarks |
|---|---|---|
| Product Name | Heavy-duty large section trapezoidal integrated bending corrugated plate | Also called large ripple cargo hold plate / container side plate |
| Section Feature | Trapezoidal shape, large oblique angle (inner angle 100°~135°), large wave height | Different from standard small ripple container plate |
| Common Section Size | Wave height: 40~60mm Pitch: 300~500mm Effective width: 1000~1500mm Bending R radius: ≥1.5×plate thickness (anti-crack) | Custom section available per drawing |
| Plate Thickness | 2.0 / 2.5 / 3.0 / 4.0mm | Heavy load customized 5.0~6.0mm |
| Standard Length | 3000~12000mm | Fixed length customizable |
| Forming Process | CNC press brake multi-pass cold bending | Integral forming without splicing weld |
| Executive Standard | GB/T 4179 (Container steel) GB 712 (Marine steel plate) GB/T 32417 (Weathering steel) | Class society certification available |
| Material Grade | Standard | Yield Strength | Tensile Strength | Elongation | Corrosion Resistance | Structural Strength | Application | Cost Level |
|---|---|---|---|---|---|---|---|---|
| SPA-H / Q355NH Weathering Steel | GB/T 4179 / GB/T 32417 | ≥355MPa | 470~630MPa | ≥24% | ★★★★☆ | ★★★★ | Container ship side plate, cargo hold bulkhead, offshore platform enclosure | Medium |
| AH36 High Strength Marine Plate | GB 712 | ≥355MPa | 490~620MPa | ≥21% | ★★★☆☆ | ★★★★★ | Heavy-duty cargo hold stiffener, deck corrugated load-bearing structure | Medium-High |
| Q235 / Grade A Marine Plate | GB 712 / GB/T 700 | ≥235MPa | 375~500MPa | ≥26% | ★★☆☆☆ | ★★★☆ | Ship inner partition wall, dry cabin enclosure | Low |
| DX51D+Z Galvanized Steel | GB/T 2518 | ≥140MPa | 270~500MPa | ≥22% | ★★★☆☆ | ★★★☆ | Dry inner cabin, temporary partition, non-load-bearing enclosure | Low |
| Item | Description |
|---|---|
| High Lateral Pressure Resistance | Trapezoidal section has higher moment of inertia, resists heavy cargo impact and side pressure |
| Thick Plate Anti-Crack Forming | Large bending angle + large R radius, avoid cracking for thick plate cold bending |
| High Integral Strength | One-piece cold bending, no splicing weld, good stability and deformation resistance |
| Multiple Anti-Corrosion Options | Shot blasting + painting, hot-dip galvanized, aluzinc available |
| Processing Remarks | 1. Match bending R radius according to plate thickness 2. Low hydrogen welding electrode for high strength steel, preheat for thick plate 3. Anti-corrosion treatment required for marine salt fog environment |
| Comparison Item | Heavy-Duty Large Section Trapezoidal Plate | Standard Small Ripple Container Plate |
|---|---|---|
| Section Feature | Large wave height 40~60mm, large oblique angle | Small wave height ~36mm, small ripple angle |
| Plate Thickness | 2.0~6.0mm, main 2.5~4.0mm | 1.6~2.0mm |
| Main Usage | Heavy cargo hold bulkhead, special container, marine heavy structure | Standard shipping container side panel |
| Performance Focus | Anti-pressure, anti-impact, heavy load working condition | Lightweight, standard shipping |
| Cost | Medium-High | Medium-Low |
