Category: Definition of Refractory Metal

The term ‘refractory metal’ is used to describe a group of metal elements that have exceptionally high melting points and are resistant to wear, corrosion, and deformation.

Industrial uses of the term refractory metal most often refer to five commonly used elements:
Molybdenum (Mo)
Niobium (Nb)
Rhenium (Re)
Tantalum (Ta)
Tungsten (W)

The identifying feature of refractory metals is their resistance to heat. The five industrial refractory metals all have melting points in excess of 3632°F (2000°C).

Tungsten Metal Has Facilitated The Development Of The Aerospace Industry

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Tungsten Metal Has Facilitated The Development Of The Aerospace Industry Space, once the arena of great power rivalry, now depends on international cooperation for its costly endeavor. The aerospace industry represents the economic, military, and technological level of a country, and is also an important symbol of a country’s comprehensive national strength and national defense […]

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What Can Rhenium Be Used For?

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What Can Rhenium Be Used For? Rhenium is classified as a scarce refractory metal. It has the second-highest melting point of any of the metals and has a relatively high density. Rhenium is produced as a powder from molybdenite, which also contains rhenium sulfide. The rhenium powder is consolidated by pressing and resistance sintering in […]

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The List Of Abundant Refractory Metals

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The List Of Abundant Refractory Metals Tungsten, tantalum, molybdenum, columbium, vanadium, and chromium may be classed as relatively abundant refractory metals; that is, free world reserves of contained metal are over 100,000 tons for each metal. The first four show promise in a considerably higher temperature range than the last two, and sometimes the term […]

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Which Elements Have the Highest Melting Point?

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Which Elements Have the Highest Melting Point? As we all know, the melting point is the temperature at which a substance converts from a solid state to a liquid state. Some of the metals show very high melting points at least 2,000 degrees Celsius, and they also have very high physical strength. These metals are […]

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When Was Tungsten First Used in Light Bulbs

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More than 350 years ago, porcelain makers in China incorporated a unique peach color into their designs by means of a tungsten pigment that was not known in the West. Indeed it was not for another century that chemists in Europe became aware of it. In 1779, Peter Woulfe examined a mineral from Sweden and […]

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What Is Rhenium Metal Powder Used to Make?

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What Is Rhenium Metal Powder Used to Make? Only tungsten and carbon have higher melting points. Rhenium has good wear resistance and it can withstand arc corrosion. It is soluble in nitric and sulphuric acids. Applications for the metal include its use as an alloying element with tungsten. Rhenium powder is a light-gray metal powder made […]

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