Stainless Steel: The Corrosion-Resistant Marvel
What makes stainless steel resistant to corrosion?
Choose the correct response:
2. Its shiny appearance
3. Its low cost
4. Its high carbon content
Answer:
Stainless steel is resistant to corrosion because of its unique composition.
Stainless steel is a type of steel that is resistant to air, water, and certain acidic substances due to its unique composition. It contains a minimum of 10.5% chromium, which plays a crucial role in preventing corrosion.
This alloying element, chromium, reacts with oxygen to form a thin, protective and adherent chromium oxide surface layer. This chromium oxide layer acts as a shield, preventing further penetration of oxygen and resisting corrosion. As a result, stainless steel does not readily corrode, rust, or stain with water like regular steel.
Due to its corrosion-resistant properties, stainless steel is widely used in various industries, including kitchen utensils, surgical equipment, architecture, and more. Its protective chromium oxide layer ensures durability and longevity, making it a preferred material for many applications.