Wrought iron and cast iron are both iron-based materials, but they differ significantly in composition, manufacturing method and performance. These differences affect how each material is formed, welded and used in architectural or industrial applications.
Traditional wrought iron has a very low carbon content and typically contains slag inclusions that create its well-known fibrous texture. Cast iron contains a much higher carbon content, commonly around 2% to 4%, and may also contain silicon and other elements. This higher carbon level helps cast iron flow into molds but also makes it less ductile.
Wrought iron is shaped by heating and mechanical working, such as forging, bending and hammering. Cast iron is produced by melting the metal and pouring it into a mold, where it solidifies into the required shape. Casting is efficient for producing detailed or complex shapes in volume, while forging is well suited to formed bars, scrolls and forged ornamental components.
Wrought iron is valued for its ductility, malleability and resistance to sudden fracture. It can be shaped and joined for decorative metalwork. Cast iron is hard and strong under compression, but it is more brittle and may crack when subjected to impact, bending or tensile stress.
| Material | Common Applications |
|---|---|
| Wrought iron | Gates, railings, fences, balustrades, hardware and ornamental metalwork |
| Cast iron | Cookware, pipes, machine bases, engine parts and cast decorative items |
For fabricated gates, fences and railings, forged or low-carbon steel-based ornamental components are generally preferred because they can be cut, bent, welded and assembled into custom designs. Cast iron can be suitable for certain decorative castings, but its brittleness makes it less suitable for parts that need to be bent, welded or exposed to repeated impact.
Simen Metal supplies ornamental components for gate, fence and railing fabrication. Send us your drawing, product list or project requirements to receive suitable component recommendations.