When metals are embedded in concrete or masonry, corrosion resistance is a critical factor due to
the alkaline environment and potential moisture exposure.
Stainless steel has excellent corrosion resistance, making it ideal for embedments in concrete or
masonry where long-term durability is required.
Bronze is corrosion-resistant but typically used for decorative or hardware applications, not structural
embedments.
Aluminum corrodes readily in alkaline concrete environments and is not suitable for embedments
without protective coatings.
Cast iron is susceptible to rust and corrosion in moist conditions and is generally avoided for
embedded components.
Thus, stainless steel is best suited for durability and corrosion resistance in concrete/masonry
embedments.
Reference:
NCARB ARE 5.0 Review Manual, Materials and Assemblies chapter
Building construction materials standards (ACI, ASTM) on metals in concrete
Corrosion resistance guides for metals embedded in concrete
