high-graphitic cathode carbon block for aluminum electrolysis

  
 

Designation
 　　
GS-3
GS-5
GS-10
Real density (g/cm3)
≥
1.94
1.98
2.08
Apparent density (g/cm3）
≥
1.56
1.57
1.59
Specific resistance (μΩ.m)
≤
33
29
21
Compressive strength (MPa)
≥
24
24
26
Ash content (%)
≤
5
4
2
Folding strength (MPa)
≥
7.0
7.0
7.5
Yong module (GPa)
≤
7.0
7.0
6.5
Sodium expansion quotiety X10-6/c(300℃)
≤
4.0
4.0
4.0
Sodium expansion ratio (%)
≤
0.8
0.7
0.5