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Physical Properties of Cobalt and Iron


Physical Properties of Iron and Cobalt


Physical Properties

Melting Point
1,495.00 °C   
29
1,535.00 °C   
25

Boiling Point
2,870.00 °C   
34
2,750.00 °C   
37

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
5.00   
8
4.00   
10

Brinell Hardness
470.00 MPa   
26
200.00 MPa   
40

Vickers Hardness
1,043.00 MPa   
11
608.00 MPa   
18

Speed of Sound
4,720.00 m/s   
14
5,120.00 m/s   
8

Optical Properties
  
  

Reflectivity
67.00 %   
11
65.00 %   
12

Allotropes
Yes   
Yes   

α Allotropes
α-Cobalt   
Ferrite (alpha Iron)   

β Allotropes
β-Cobalt   
beta Iron   

γ Allotropes
Not Available   
gamma Iron   

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