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Physical Properties of Tungsten and Niobium

Tungsten
Niobium
Physical Properties of Niobium and Tungsten


Physical Properties
Melting Point
3,410.00 °C   
1
2,468.00 °C   
6
Boiling Point
5,660.00 °C   
1
2,468.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Grayish White   
Gray   
Luster
Lustrous   
Metallic   
Hardness
  
  
Mohs Hardness
7.50   
2
6.00   
6
Brinell Hardness
2,000.00 MPa   
4
735.00 MPa   
14
Vickers Hardness
3,430.00 MPa   
1
870.00 MPa   
12
Speed of Sound
4,620.00 m/s   
16
3,480.00 m/s   
21
Optical Properties
  
  
Reflectivity
62.00 %   
13
Not Available   
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
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