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Physical Properties of Cobalt and Tungsten

Cobalt
Tungsten
Physical Properties of Tungsten and Cobalt


Physical Properties
Melting Point
1,495.00 °C   
29
3,410.00 °C   
1
Boiling Point
2,870.00 °C   
34
5,660.00 °C   
1
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray   
Grayish White   
Luster
Metallic   
Lustrous   
Hardness
  
  
Mohs Hardness
5.00   
8
7.50   
2
Brinell Hardness
470.00 MPa   
26
2,000.00 MPa   
4
Vickers Hardness
1,043.00 MPa   
11
3,430.00 MPa   
1
Speed of Sound
4,720.00 m/s   
14
4,620.00 m/s   
16
Optical Properties
  
  
Reflectivity
67.00 %   
11
62.00 %   
13
Allotropes
Yes   
No   
α Allotropes
α-Cobalt   
Not Available   
β Allotropes
β-Cobalt   
Not Available   
γ Allotropes
Not Available   
Not Available   
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