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Physical Properties of Tantalum and Copper

Tantalum
Copper
Physical Properties of Copper and Tantalum


Physical Properties
Melting Point
2,996.00 °C   
4
1,084.62 °C   
40
Boiling Point
5,425.00 °C   
4
2,562.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray Blue   
Copper   
Luster
Metallic   
NA   
Hardness
  
  
Mohs Hardness
6.50   
5
3.00   
12
Brinell Hardness
440.00 MPa   
28
235.00 MPa   
38
Vickers Hardness
870.00 MPa   
12
343.00 MPa   
28
Speed of Sound
3,400.00 m/s   
22
3,810.00 m/s   
19
Optical Properties
  
  
Reflectivity
78.00 %   
6
90.00 %   
3
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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