GRAPHITE ELECTRODES  
     
 
 
     
  They are widely used in steel making, silicon-metal, non-ferrous metal, rare metal smelting, yellow phosphorus production and fused quartz manufacturing. They have good electrical and chemical stability properties, high mechanical strength under high temperature, low impurity, strong resistance to thermal and they are good conductor for heat and electricity.  
     
  TECHNICAL PROPERTIES OF GRAPHITE ELECTRODES:  
 
Items
Unit
Nominal Diameter(mm)
Regular Power
High Power
 
Ultra High Power
75-130
150-200
250-350
400-500
300-500
400-600
Resistivity
Max
Electrode
μΩm
8.5
9.0
9.0
9.0
7
6.5
Nipple
8.5
8.5
8.5
8.5
6.5
6.5
Bending Strength
Min
Electrode
Mpa
9.8
9.8
7.8
6.4
9.8
10.0
Nipple
12.7
12.7
12.7
12.7
14.0
15.0
Elastic Modulus
Max
Electrode
GPa
9.3
9.3
9.3
9.3
12.0
14.0
Nipple
13.7
13.7
13.7
13.7
14.0
15.0
Bulk Density
Max
Electrode
g/cm3
1.58
1.52
1.52
1.52
1.60
1.65
Nipple
1.63
1.63
1.68
1.68
1.70
1.70
Ash Content
Max
-
%
0.5
0.5
0.5
0.5
0.3
0.3
C.T.E 100-600-
Max
Electrode
μK-1
2.9
2.9
2.9
2.9
2.2
1.4
Nipple
3.0
3.0
3.2
3.2
2.4
1.6
 
  Remark : ash content and C.T.E for reference.  
     
  SPECIFICATIONS &ALLOWANCE OF GRAPHITE ELECTRODES:  
 
Diameter
Length
Diameter
Actual Diameter
Length mm
Allowance mm
inch
mm
MAX
MIN
3
75
77
74
1000
+50
-75
4
100
102
99
1200
5 1/8
130
131
128
6
150
154
151
1600
±100
8
200
204
201
10
250
256
252
1600
1800
12
300
307
303
14
350
357
353
16
400
408
404
1800
2000
18
450
459
455
20
500
510
506
22
550
561
557
2000-2500
24
600
612
608
 
     
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