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Glossary of Foundry Terms - Z
- Zircon
- The mineral zircon silicate, ZrSiO4, a very high melting point acid refractory material used as a molding material in steel foundries.
- Zirconia
- ZrO2 an acid refractory up to 2500°C (4532°F) having good thermal shock resistance and low electrical resistively.
- Zirconium
- Silvery-white, metallic element, mp 1860°C (3380°F), a powerful deoxidizer when added to molten steel.