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Physical Properties of Iron and Cobalt

Iron
Cobalt
Physical Properties of Cobalt and Iron


Physical Properties
Melting Point
1,535.00 °C   
25
1,495.00 °C   
29
Boiling Point
2,750.00 °C   
37
2,870.00 °C   
34
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray   
Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
4.00   
10
5.00   
8
Brinell Hardness
200.00 MPa   
40
470.00 MPa   
26
Vickers Hardness
608.00 MPa   
18
1,043.00 MPa   
11
Speed of Sound
5,120.00 m/s   
8
4,720.00 m/s   
14
Optical Properties
  
  
Reflectivity
65.00 %   
12
67.00 %   
11
Allotropes
Yes   
Yes   
α Allotropes
Ferrite (alpha Iron)   
α-Cobalt   
β Allotropes
beta Iron   
β-Cobalt   
γ Allotropes
gamma Iron   
Not Available   
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