1. Features & Advantages
Superior mechanical propertiesSpherical graphite structure reduces stress concentration, resulting in significantly higher compressive and tensile strength in pipes compared to ordinary gray cast iron pipes, even approaching that of steel pipes.
Excellent corrosion resistanceCast iron has excellent resistance to corrosive environments like acids and alkalis. With the addition of a lining of cement or epoxy resin as a corrosion-resistant layer, its lifespan can exceed 50 years.
Easy installationAdopts socket or flange connection for fast installation, with excellent joint sealing and low risk of leakage.
Adaptable to complex terrainFlexible performance exceeds that of steel pipes, suitable for laying in complex terrains such as mountains and rivers.
2. Main Application Fields
Municipal Water SupplyCity tap water transportation, especially suitable for long-distance, large-diameter requirements.
Drainage SystemRainwater and wastewater discharge, strong resistance to ground subsidence.
Gas TransmissionGas and other medium transmission, reliable sealing.
Industrial SectorCorrosive medium transportation for chemical plants, thermal power plants, etc.
3. Compared to other piping materials
| Type | Ball Mill Cast Iron Pipe | Steel Pipe | Plastic pipes (such as PE) |
|---|---|---|---|
| Strength | High (close to steel pipe) | High | Lower |
| Corrosion resistance | Superior (especially after lining) | Easily corroded; requires anti-corrosion treatment. | High corrosion resistance |
| Service Life | Long-term (50 years or more) | Medium (requires maintenance) | Shorter (20-30 years) |
| Cost | Initial investment is high, with low long-term maintenance. | Low initial investment, high maintenance costs | Low initial investment, frequent replacement |
| Applicability | Complex terrain, preference for large bore | High-pressure, high-precision applications | Small bore, temporary works |
4. Production Process & Standards
Centrifugal casting methodThrough high-speed rotation of the mold, molten iron is evenly distributed to form a dense tube wall.
International StandardsMeets ISO 2531, EN 545, and other standards, ensuring pressure ratings (such as K9, K12) align with size specifications.
5. Future Prospects
With the advancement of urbanization and increased water quality requirements, there is a growing demand for ball mill cast iron pipes in areas such as the renovation of old pipeline networks and the construction of sponge cities. Their environmental benefits (recyclable) and long-term cost advantages are becoming increasingly apparent.
