Robust Cast Iron Manhole Cover: Urban Infrastructure Staple
Our Robust Cast Iron Manhole Cover is an essential staple for urban infrastructure. Crafted from high-quality cast iron, it offers unmatched durability and strength. Suitable for high-traffic areas, it ensures safety and security, preventing accidents. Easy to install and maintain, this cover is designed to withstand the test of time.
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Characteristic:
Our Robust Cast Iron Manhole Cover is an indispensable staple for urban infrastructure, providing unmatched durability and strength. Crafted from high-quality cast iron, it is designed to withstand the rigors of heavy traffic and extreme weather conditions. Suitable for use in high-traffic areas, this cover ensures safety and security, preventing accidents and injuries. Easy to install and maintain, it requires minimal upkeep and is a reliable choice for urban planners and municipalities. Its robust construction makes it a long-lasting solution for protecting underground utilities.
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 |
