corundum crucible of 99% alumina, long‑term 1750℃ working temp, excellent chemical inertness against acid‑alkali & molten metal, standard & custom sizes for lab and industrial high‑temp melting & sintering.
The main chemical component is Al2O3, with a purity of up to 99% and a bulk density generally ranging from 3.0 to 3.3g/cm3. It can be stably used at 1750℃ for a long time, exhibiting excellent high-temperature resistance, good thermal stability, and chemical inertness. It also has strong corrosion resistance to precious metals, iron, cobalt, nickel-based alloys, and acidic environments.
