Melting Point of Common Refractory Materials
The melting points of refractory materials can vary widely depending on their composition and intended applications. Generally, refractory materials have high melting points, often exceeding 2000 °C (3632 °F).
The following table provides a curated list of melting point values for common refractory materials at 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
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| Alumina brick (64-65 wt% Al2O3) | 1650 - 2030 |
| Carbon brick (99 wt% graphite) | 3500 |
| Chrome brick (100 wt% Cr2O3) | 1900 |
| Chrome-magnesite brick (52 wt% MgO, 23 wt% Cr2O3) | 3045 |
| Dolomite (fired) (55 wt% CaO, 37 wt% MgO) | 2000 |
| Fireclay brick (54 wt% SiO2, 40 wt% Al2O3) | 1740 |
| High-alumina brick (90-99 wt% Al2O3) | 1760 - 2030 |
| Magnesite brick (95.5 wt% MgO) | 2150 |
| Mullite brick (71 wt% Al2O3) | 1810 |
| Silica brick (95-99 wt% SiO2) | 1765 |
| Silicon carbide brick (80-90 wt% SiC) | 2305 |
| Zircon brick (99 wt% ZrSiO4) | 1700 |
| Zirconia (stabilized) brick | 2650 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017.