Heavy-Duty Cast Iron Manhole Cover: Urban Resilience & Appeal
Our Heavy-Duty Cast Iron Manhole Cover offers urban resilience and timeless appeal. Crafted from robust cast iron, it withstands heavy traffic and harsh weather. Its classic design complements urban settings, ensuring functionality and style.
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Characteristic:
Our Heavy-Duty Cast Iron Manhole Cover offers urban resilience and timeless appeal, making it an ideal choice for municipal infrastructure projects. Crafted from high-quality, robust cast iron, it's designed to withstand the rigors of heavy traffic and extreme weather conditions. Its classic and elegant design complements any urban landscape, blending functionality with aesthetic appeal. Easy to install and maintain, this cover requires minimal upkeep and is a reliable solution for protecting underground utilities while enhancing the urban environment.
1. Good toughness. The impact value is similar to that of medium carbon steel and more than 10 times that of gray iron.
2. Strong corrosion resistance. Water spray corrosion test, 90 days of corrosion is only 1/40 of the steel pipe, is 1/10 of the gray iron pipe. The service life is 2 times that of gray iron pipe and 5 times that of ordinary steel pipe.
3. Good plasticity. Elongation ≥7%, similar to high carbon steel, while gray iron material elongation is zero.
4. High intensity. Tensile strength ob ≥420MPa, yield strength os ≥300MPa, the same as low carbon steel, is three times the gray iron material.
Grade:
| Size | Grade | Pressure | Size | Garde | Pressure |
| Φ500*600 | B125 | 10T | Φ700*800 | E600 | 60T |
| Φ500*600 | C250 | 20T | Φ700*900 | C250 | 20T |
| Φ600*700 | B125 | 10T | Φ700*900 | D400 | 40T |
| Φ600*700 | C250 | 20T | Φ800*900 | B125 | 10T |
| Φ600*700 | D400 | 40T | Φ800*900 | C250 | 20T |
| Φ700*800 | A15 | / | Φ800*900 | D400 | 40T |
| Φ700*800 | B125 | 10T | Φ1000*1200 | B125 | 10T |
| Φ700*800 | C250 | 20T | Φ1000*1200 | C250 | 20T |
