The most commonly used materials of mooring bollards are ductile cast iron, gray cast iron and cast steel.
We summarize the difference between cast iron and cast steel mooring bollards from the aspects of impact resistance, corrosion resistance, wear resistance and cost.
Materials |
Advantages |
Disadvantages |
Ductile Cast Iron |
- Long service life
- High strength
- Good impact resistance
- High corrosion resistance
-Good cost per weight |
-Need high requirement to the casting quality.
-Strength is lower than cast steel. |
Grey Cast Iron |
-Low cost per weight
-Excellent corrosion resistance |
-Low strength
-Low impact resistance |
Cast Steel |
-High strength
-High impact resistance |
-Needs regular maintenance to prevent corrosion.
-The most expensive among the 3 types of materials. |
Cast iron mooring bollard |
