What are the differences in sound resonance between metal outdoor armchair materials?

The sound resonance of metal outdoor armchairs varies significantly depending on the material used. Aluminum, steel, and wrought iron each produce distinct acoustic effects due to their unique densities and structural properties. Aluminum tends to create a lighter, higher-pitched resonance, while steel offers a deeper, more sustained sound. Wrought iron, being denser, often produces a muted, low-frequency resonance. These differences can influence the overall ambiance of outdoor spaces, making material choice crucial for both aesthetic and functional purposes. Understanding these variations helps in selecting the right armchair for environments where sound quality matters.