Cast Iron vs. Galvanized Pipe
Cast iron pipes and galvanized pipes are two entirely different products, though their applications overlap to some extent. Cast iron pipes are generally used in drainage systems, while galvanized pipes can be used in drainage systems as well as for structural applications, water supply systems, and more.
Cast iron pipes are typically used in drainage systems or in heavy-duty systems that require minimal maintenance.
Below, we will compare cast iron and galvanized pipes from several perspectives.
| Cast iron pipes | Galvanized Pipe | |
| Material | Cast from molten iron, with a carbon content of 2.0% to 4.0% | Steel coated with a layer of zinc; carbon content up to 1% |
| Strength | High compressive strength | High overall performance |
| Machinability | Difficult to machine | Easy to process |
| Compressive strength | Good | Average |
| Toughness | Fair | Good |
| Impact resistance | Fair | Good |
| Bending strength | Fair | Good |
| Internal scaling | Possible | May deteriorate over time |
| Cost | High | Better value for money |
| Applications | Sewage, drainage, municipal | Water supply, fire protection, structural applications, fencing |
