Tungsten alloy is a kind of alloy which is made of tungsten, and one or more alloy elements. The applications of tungsten and tungsten alloy are wide, such as electronic, electric light source industry, aerospace, weapons, casting department for the production of rocket nozzle, penetrators, contacts, etc.. What is the classification of tungsten alloy? Now Sanhui will make an introduction for you.
Tungsten alloy can be divided into molybdenum tungsten alloy and niobium tungsten alloy. Molybdenum tungsten alloy refers to the alloy containing two elements of molybdenum and tungsten, which includes molybdenum tungsten alloy based on molybdenum and tungsten and tungsten molybdenum alloy based on tungsten. This alloy can be formed in any proportion, it is complete solid solution alloy at all temperatures.
Niobium tungsten alloy is niobium alloy which is formed by niobium base and adding a certain amount of tungsten and other elements. Tungsten and niobium form infinite solid solution, and tungsten is the effective strengthening element of niobium, but  along with the increasing of tungsten adding amount, the brittle, ductile and transition temperature of alloy will rise, and the grain will be also significantly increased. So, if you want to get niobium tungsten alloy with high strength, you must appropriately control the adding amount of tungsten, and adding proper amount of refinement grain, reducing the element with brittle ductile transition temperature, such as zirconium, hafnium and so on.