Molybdenum crucible Applications Because of its high melting point of 2610 degrees Celsius, molybdenum crucible is widely used as the core vessel in industrial furnaces such as sapphire single crystal growth furnaces, quartz glass melting furnaces, rare earth smelting furnaces, etc. the working temperature environment for its use is generally above 2000 degrees Celsius. Especially for sapphire single crystal growth furnaces, molybdenum crucible with high purity, high density, no internal cracks, precise size, smooth inner and outer walls, etc. Plays a key role in the success rate of seeding crystal, quality control of pulling crystal, sticky pot of decrystallization and service life of sapphire crystal growth process.