What is a notable characteristic of mild steel?

Mild steel is known for its notable characteristic of rusting unless adequately protected. This is primarily due to its iron content, which reacts with moisture and oxygen in the presence of water, leading to oxidation and rust formation. To prevent this corrosion, mild steel products often require protective coatings such as paint, galvanization, or other surface treatments.

Mild steel's susceptibility to rusting makes it essential for designers and engineers to consider appropriate protective measures when specifying it for applications in environments exposed to moisture or harsh conditions. Understanding this property allows for better material selection and design strategies in product development, helping to extend the lifespan and durability of the products made from mild steel.