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Tungsten Metal (W)-Rod

Tungsten Metal (W)-Rod

CAS: 7440-33-7
Molecular Formula: W
Purity: 99.9%-99.999 %
Products Code: 7400RD
Specification Model: 3 mm dia x 20 mm length
EINECS No.: 231-143-9
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Tungsten Metal (W)-Rod introduce:


Tungsten, or wolfram, is a chemical element with the symbol W and atomic number 74. Tungsten is a rare metal found naturally on Earth almost exclusively combined with other elements in chemical compounds rather than alone. Its important ores include wolframite and scheelite.

Phase at STP:solid

Appearance:grayish white, lustrous

Melting point:3695 K (3422 °C, 6192 °F)

Boiling point:6203 K (5930 °C, 10706 °F)

Density (near r.t.):19.3 g/cm3

when liquid (at m.p.):17.6 g/cm3

Heat of fusion:52.31 kJ/mol

Heat of vaporization:774 kJ/mol

Molar heat capacity:24.27 J/(mol·K)


Approximately half of the tungsten is consumed for the production of hard materials – namely tungsten carbide – with the remaining major use being in alloys and steels. Less than 10% is used in other chemical compounds. Because of the high ductile-brittle transition temperature of tungsten, its products are conventionally manufactured through powder metallurgy, spark plasma sintering, chemical vapor deposition, hot isostatic pressing, and thermoplastic routes. A more flexible manufacturing alternative is selective laser melting, which allows creating complex three-dimensional shapes.
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