Yttrium rod, 12.7mm (0.5in) dia, 99.9% (metals basis excluding Ta)

Yttrium is a chemical element with symbol Y and atomic number 39.
≈0.57g/mm

Yttrium is used in the production of a large variety of synthetic garnets, and yttria is used to make yttrium iron garnets. Yttrium has been studied as a nodulizer in ductile cast iron, forming the graphite into compact nodules instead of flakes to increase ductility and fatigue resistance.