Corundum crucibles, made from aluminum oxide, are renowned for their high melting points and excellent resistance to thermal shock, making them ideal for high-temperature applications.
Graphite crucibles are made from high-purity graphite, offering excellent conductivity and thermal properties, suitable for melting metals and other materials at relatively lower temperatures compared to corundum.
| Parameter | Corundum Crucibles | Graphite Crucibles |
|---|---|---|
| Max Temperature | Up to 1800°C | Up to 3000°C |
| Thermal Shock Resistance | High | Moderate |
| Oxidation Resistance | Very High | Low |
| Weight | Heavier | Lighter |
Users report that corundum crucibles, while resistant and durable, often require careful handling due to their weight. They excel in environments that demand thermal stability.
Graphite crucibles are praised for their light weight and ease of handling, with users noting a quicker heating process. However, they require more precaution as they can degrade with prolonged exposure to oxidizing environments.
Corundum crucibles are best for industries requiring high thermal stability and oxidation resistance, such as ceramics and glass manufacturing.
Graphite crucibles are well-suited for metal casting and alloying processes, particularly where conductivity and lighter weight are crucial, such as in labs and smaller operations.
In conclusion, whether to choose corundum or graphite crucibles depends largely on your specific application needs. Mingte offers a range of high-quality crucibles to suit both requirements. For more information, visit our website or contact us. 
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