Human beings have an incredible ability to search for or happen upon new materials, combine materials to create something new, and discover and innovate new methods and uses for materials in multiple ways and industries. Think of the progress that has been made over the course of human existence on this planet.However, in the grand scheme of things, we have been on this planet for a relatively short amount of time. With that perspective in mind, the discoveries and inventions that we have reached are really quite astounding.
Among the materials that we have discovered and created, molybdenum and tungsten are perhaps not as widely known. Tungsten and molybdenum crucibles can only be formed and used after an intricate process, and only then after many of the properties were explored. Molybdenum has the extremely high melting point of 4,748 degrees Fahrenheit, and the glass melting electrodes need to be at purity levels of 99.95% in order to have an adequate resistance to possible chemical corrosion or degradation. This minimizes glass discoloring.
Tungsten has an even higher melting point, at 6,170 degrees Fahrenheit. In fact of every metal in pure form, it has the highest melting point, as well as the highest tensile strength and the lowest vapor pressure.
The high temperature resistance of both tungsten and molybdenum make them superior products in the field of smelting, crystal growth, and calcining. If you are in such a market and require a crucible with industrial-strength properties, you should consider acquiring a tungsten or molybdenum crucible.