Corrosion Resistant Ductile Iron Manhole Cover Class C250 700x700mm for Municipal Roads
High-quality corrosion-resistant ductile iron manhole cover engineered for municipal roads and urban infrastructure applications. Provides superior durability and safety performance for both pedestrian and vehicle traffic environments.
- Manufactured from high-strength ductile iron for exceptional durability and longevity
- Superior corrosion resistance ensures long-term outdoor performance
- Excellent load-bearing capacity (Class C250 - 250kN rating)
- Precision-engineered square design for optimal fit and functionality
- Anti-slip surface treatment enhances safety in all weather conditions
| Outer Dimensions (mm) | Clear Opening (mm) | Thickness (mm) | Load Class | Weight (kg) | Application Scenarios |
|---|---|---|---|---|---|
| 500 × 500 | 400 × 400 | 30 | A15 | 25 | Pedestrian areas, parks, greenbelts |
| 600 × 600 | 500 × 500 | 35 | B125 | 35 | Non-motorized lanes, residential paths |
| 700 × 700 | 600 × 600 | 40 | C250 | 50 | Parking lots, secondary roads |
| 800 × 800 | 700 × 700 | 45 | D400 | 75 | Urban main roads, general traffic zones |
| 1000 × 1000 | 900 × 900 | 50 | E600 | 120 | Industrial zones, heavy vehicle areas |
- A15: Pedestrian paths, parks, and non-traffic areas
- B125: Sidewalks, residential paths, and non-motorized lanes
- C250: Parking lots and secondary roads
- D400: Urban main roads and motorized traffic areas
- E600: Industrial zones and logistics parks
- Material Preparation: High-quality pig iron and scrap iron alloyed with magnesium
- Casting: Precision sand casting for accurate dimensions
- Heat Treatment: Enhances strength and flexibility
- Surface Coating: Anti-corrosive treatment for environmental protection
- Quality Control: Rigorous testing for load capacity and dimensional accuracy
SND has been a leading manufacturer of metal products for over 20 years, specializing in high-quality casting and machining services. Our expertise spans multiple industries including municipal infrastructure, transportation, and construction.
Our ISO9001-certified quality management system ensures consistent product excellence, supported by comprehensive testing including spectrometer analysis, ultrasonic inspection, and mechanical property verification.
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