Titanium

Titanium was a hard metal often used as defensive plating on war engines. When the pilot Kanan Jarrus kicked the industrialist cyborg Denetrius Vidian in the lower back it felt as though he had kicked a bag of titanium hammers. To resist interdimensional shift stress, hyperdrive systems typically required a specific alloy of titanium and chromium. The body of a BX-series droid commando was made from a titanium-reinforced steel. T-65B X-wing starfighters had titanium armor alloy hulls.

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