Other materials have their own niche, e.g., Aluminum for aircraft and drink cans. Titanium for bicycles, marine applications, and aircraft hydraulic tubing. Composites for lightweight structures. Figure 2-10 Composites have the ability to have their response tuned in orthogonal directions.
Ceramics are the hardest materials available, but lack ductility and are brittle.
Many new products are being developed with ceramics. Material properties are stochastic values. Check tables to see what values are being given, e.g., typical or minimum.