Which metal is corrosion resistant and commonly used for sinks and cutlery?

• A. Cast iron
• B. Mild steel
• C. Stainless steel
• D. Brass

Answer: (C)

Corrosion resistance means the metal can resist rusting and deterioration when exposed to water and air. Stainless steel achieves this because it contains chromium. The chromium forms a very thin protective layer of chromium oxide on the surface, which shields the metal from corrosion and can repair itself if scratched. This self-healing, passive layer is what keeps sinks and cutlery looking clean and lasting longer in a kitchen’s wet, often salty environment.

Stainless steel is also strong, durable, easy to clean, and has a bright, hygienic appearance, all important for utensils and fixtures that see frequent use and cleaning. Cast iron and mild steel rust quickly when exposed to water unless heavily coated, so they aren’t as suitable for everyday kitchen items. Brass can resist some corrosion but isn’t as robust, easy to keep hygienic, or as common for cutlery and sinks as stainless steel.