Cladding primarily serves to improve which material property?

Cladding primarily serves to improve which material property?

• A. Aesthetic appeal
• B. Thermal insulation
• C. Increased hardness
• D. Corrosion resistance

Answer: (D)

Cladding is about protecting the steel from the environment. The outer layer acts as a barrier to moisture, chlorides, and other corrosive elements, which is what keeps the steel from rusting and deteriorating. That protection—corrosion resistance—is the primary reason cladding is used on structural steel. While cladding can affect appearance and, in some systems, contribute to insulation, these are secondary, and increasing hardness isn’t a feature of cladding.

Cladding is about protecting the steel from the environment. The outer layer acts as a barrier to moisture, chlorides, and other corrosive elements, which is what keeps the steel from rusting and deteriorating. That protection—corrosion resistance—is the primary reason cladding is used on structural steel. While cladding can affect appearance and, in some systems, contribute to insulation, these are secondary, and increasing hardness isn’t a feature of cladding.