Beryllium / Beryllium Alloy Beryllium has the second lowest density compared to ... Aluminum is also useful as an alloying element in steel and titanium alloys. Aluminum alloys are versatile metals ...

Titanium, zirconium, and beryllium are considered reactive metals. Finely divided reactive metals can react explosively with oxygen and are often added to rocket fuels or combustible mixtures. A ...