The physical and chemical properties of molybdenum and molybdenum alloy products

Molybdenum belongs to the same group as tungsten in the periodic table, which means that these two metals have similar physical and chemical properties. Molybdenum also belongs to the group of high melting point metals (also known as refractory metals). Molybdenum has typical characteristics such as high melting point, low vapor pressure, good high-temperature stability, low thermal expansion coefficient, and high density. And it has the characteristic of high elastic modulus in molybdenum based materials and tungsten based materials. Molybdenum and tungsten also have excellent thermal conductivity. The difference is that molybdenum is also easily deformed at relatively low temperatures, making it easier to process than tungsten. Molybdenum has a very balanced range of properties and is a truly versatile material. Application areas include electric light sources and lighting, semiconductor substrates, glass melting electrodes, hot zones of high-temperature furnaces, high-temperature die-casting molds, etc.

钼的物理性能

Chemical properties of molybdenum

The excellent chemical resistance of molybdenum and its alloys has been highly valued by the chemical and glass industries. Molybdenum has corrosion resistance when the atmospheric humidity is below 60%. Molybdenum will only begin to fade when the humidity is higher. Molybdenum no longer has corrosion resistance in alkaline and oxidizing liquids with temperatures above 100 ℃. For the application of molybdenum in oxidizing gases and elements above 250 ℃, we have added a protective layer to prevent molybdenum from being oxidized. Glass melt, hydrogen, nitrogen, inert gases, metal melt, and oxide ceramics do not corrode molybdenum even at very high temperatures, or have a smaller erosive effect on molybdenum than other metal materials.

Our molybdenum and molybdenum alloy products

For different applications of molybdenum materials, we can change the characteristics of molybdenum and its alloys by adding various alloys and using corresponding production processes.