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Graphite Products
 
Normal Power Graphite Electrode

 
   
Nominal Diameter (mm)
75-130
150-225
250-350
400-500
Nipple
Specific Resistance
Max.
8.2
8.5
8.5
8.5
8.0
Flexural Strength
Mpa Min.
10.0
10.0
10.0
10.0
13.0
Elastic Modulus
GPA Max
9.3
9.3
9.3
9.3
13.7
Ash
% Max.
0.40
0.40
0.40
0.40
0.40
Bulk Density
g/cm3 Min.
1.60
1.58
1.56
1.54
1.70
C.T.E.
10-6 ./‘ζ Max.
2.90
2.90
2.90
2.90
2.70
 
High Power Graphite Electrode
   
Nominal Diameter (mm)
75-130
150-225
250-350
400-500
Nipple
Specific Resistance
Max.
6.70
6.70
6.70
6.70
6.30
Flexural Strength
Mpa Min.
10.5
10.5
10.5
10.5
14.0
Elastic Modulus
GPA Max
12.0
12.0
12.0
12.0
16.0
Ash
% Max.
0.30
0.30
0.30
0.30
0.30
Bulk Density
g/cm3 Min.
1.60
1.60
1.60
1.60
1.70
C.T.E.
10-6 ./‘ζ Max.
2.40
2.40
2.40
2.40
2.20
 
Impregnated Graphite Electrode
 
 
   
Nominal Diameter (mm)
75-130
150-225
250-350
400-500
Nipple
Specific Resistance
Max.
8.0
8.0
8.0
8.0
7.5
Flexural Strength
Mpa Min.
10.0
10.0
9.0
8.0
13.0
Elastic Modulus
GPA Max
12.0
12.0
12.0
12.0
14.0
Ash
% Max.
0.30
0.30
0.30
0.30
0.30
Bulk Density
g/cm3 Min.
1.58
1.58
1.58
1.58
1.68
C.T.E.
10-6 ./‘ζ Max.
2.70
2.70
2.70
2.70
2.50
 
 
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