the difference between iron and steel
Iron is an element, steel is an alloy. Steel is made from Iron. It is an alloy made up of iron and carbon. Other metals can also be added to steel to produce alloys with different characteristics. For instance steel with chromium added is stainless steel. Unlike regular steel it doesn’t rust. Steel is used extensively in buildings. Steel beams, studs, nails, bolts, doors, and siding are commonly used in residential construction. I believe rerod and wire mesh used in cement is made of iron. In larger buildings steel is used even more in the structures of the buildings. Iron was used first, then cast iron, then wrought iron, and now steel. We use steel instead or iron because its stronger than iron; superior in tension and compression.