Features: the use of petroleum coke, asphalt and other raw materials mixing extrusion forming, and then after high temperature calcination process is made, as conductive electrode in aluminum electrolytic tank.

Application: suitable for the electrolytic aluminum industry, with low ash, low sulfur, characteristics of plastic, high strength.

Serial number

Item
 The parameter index  

To ensure that the value of

Typical values

 
1
 The volume density
 g/cm3
 1.56(Min)
 1.56 -1.60
 
2
 Resistivity
 Microohm-mu
 56(Max)
 52.0-56.0
 
3
 True density 
 G/cm3
 2.06(Min)
 2.06-2.10
 
4
 Compressive strength 
 Mpa
 38(Min)
 38-45
 
5
 
The reaction of carbon dioxideCO2 
 Residual 
 %
 91(Min)
 91-95
 

 
 Ash
 %
 2.5(max)
 1.0-2.5
 
6
 Air reaction
  

Residual

 
 %
 92(Min)
 93-97.5
 

 
 Ash 
 %
 2.0(max)
 0.1-2.0
 
7
 Thermal conductivity 
 W/mk
 3.0(Min)
 3.0-4.5
 
8
 High flexural strength
 Mpa
 9.0(Min)
 9.0-13.0
 
9
 Permeability
 NPm
 2.3(Max)
 0.5-2.3
 
10
 Thermal expansion rate
 K-1
 4.0*10-6 (max)
 3.0-4.0
 
11
 
Ash Ash
 %
 0.5(max)
 0.1-0.5
 
12
 
Iron Fe
 ppm
 374(max)
 58-374
 
13
 
Silicon Si
 ppm
 275(max)
 54-275
 
14
 
Sulfur S
 %
 3.0(max)
 1.0-3.0
 
15
 
NickelNi
 ppm
 250(max)
 250-182
 
16
 
VanadiumV
 ppm
 150(max)
 69-150
 
17
 
SodiumNa
 ppm
 100(max)
 42-100