How does the weight of wrought iron compare to cast iron?

When comparing the weight of wrought iron and cast iron, the primary factor to consider is their density. Wrought iron has a lower density, typically around 7,750 kg/m³, making it lighter than cast iron, which has a density of approximately 7,200 kg/m³. This difference in density is due to the manufacturing processes and the carbon content in each material. Wrought iron is forged and contains less carbon, resulting in a more malleable and lighter material. Cast iron, on the other hand, is poured into molds and has a higher carbon content, making it denser and heavier.

In practical terms, wrought iron is often preferred for applications where weight is a concern, such as decorative railings or gates, while cast iron is favored for its strength and durability in heavy-duty applications like engine blocks or machinery bases. Understanding these differences can help you choose the right type of iron for your specific needs.