|
Large size diameter graphite electrode
|
|
Physical and chemical indexes
|
|
Items
|
Unit
|
Nominal Diameter (mm)
|
|
650~750
|
780~960
|
1005~1310
|
|
Specific Resistance
|
Electrode
|
μΩm
|
12.0 max
|
13.0 max
|
15.0 max
|
|
Nipple
|
7.5 max
|
7.5 max
|
7.5 max
|
|
Bending Strength
|
Electrode
|
MPa
|
6.0 min
|
5.2 min
|
5.0 min
|
|
Nipple
|
13.0 min
|
13.0 min
|
13.0 min
|
|
Elactic Modulus
|
Electrode
|
GPa
|
12.0 max
|
12.0 max
|
12.0 max
|
|
Nipple
|
14.0 max
|
14.0 max
|
14.0 max
|
|
Bulk Density
|
Electrode
|
g/cm3
|
1.58 min
|
1.58 min
|
1.56 min
|
|
Nipple
|
1.68 min
|
1.68 min
|
1.68 min
|
|
C.T.E.
|
Electrode
|
1 x 10-6/oC
|
2.9 max
|
2.9 max
|
2.9 max
|
|
Nipple
|
2.8 max
|
2.8 max
|
2.8 max
|
|
Ash
|
%
|
0.5 max
|
0.5 max
|
0.5 max
|
|
Large size diameter graphite electrode
|
|
Electrode diameter(mm)
|
Allowable max current load(A)
|
Allowable max current density(A/cm2)
|
|
650
|
43100
|
13
|
|
700
|
46200
|
12
|
|
780
|
57300
|
12
|
|
800
|
60300
|
12
|
|
850
|
62400
|
11
|
|
900
|
69900
|
11
|
|
960
|
72400
|
10
|
|
1005
|
79200
|
10
|
|
1020
|
73500
|
9
|
|
1060
|
79400
|
9
|
|
1100
|
85500
|
9
|
|
1146
|
92800
|
9
|
|
1272
|
101600
|
8
|
|
1310
|
107770
|
8
|
Graphite electrode has good electric conduction and heat conducting properties. Graphite electrode can be applied for metallurgy and calcium carbide, phosphor-chemical enterprise, such as iron and steel smelting,industrial silicon, yellow phosphorous,ferroalloy,titania,brown fused alumina etc submerged-arc furnance melting production
