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GRAPHITE/CARBON FOR ALUMINUM IND.
 
GRAPHITE/CARBON FOR ALUMINUM IND.  
   PARTIAL / HIGH GRAPHITE CATHODE CARBON BLOCK (Sidewall, Bottom and Corner blocks for aluminum electrolysis)
Item Unit Partial Graphite High Graphite Graphite Impregnated Graphite
BSL-1 BSL-2 GS-3 GS-5 GS-10
Ash Max. % 7 8 5 4 2 0.5 0.3
Resistance Max. Micron ohm.m 40 45 33 29 21 15 12
Bulk Density Min. g/cm3 1.56 1.54 1.56 1.57 1.59 1.56 1.72
Electrolytic Expansion Max. % 1.0 1.2 - - - 0.2 0.2
Real Density Min. g/cm3 1.90 1.88 1.94 1.98 2.08 2.18 2.19
Compressive Strength Min. Mpa 32 30 24 24 26 18 25
BLOCK DIMENSIONS AND TOLERANCE
Item Available Size (mm) Tolerance  (mm)  Max.
Width Thickness Length
Bottom Blocks 5154503280 5154503250 2 4 15
Sidewall Blocks 355123520 400123550 400115560 400115550 400130500 5 5 5
Corner Blocks 306123520 204123520 5 5  
   CARBON ANODE for Aluminum Electrolysis
Parameter Unit Properties
Apparent density Min. g/cm3 1.55
Real density Min. g/cm3 2.06
Resistivity Max. Micron ohm.m 55
Compressive strength Min. Mpa 35
Flexural strength Min. Mpa 8
Permeability Max. nPm 2
Thermal conductivity Min. W/m.k. 4
Coefficient of thermal expansion Max. K-1X 10-6 4.5
Air reactivity loss   % 8-15
Young?s modulus(dynamic)   Gpa 6-10
Young?s modulus(static)   Gpa 3.5-5.5
Ash Max. % 0.4
Max. % 1.5
   CATHODE PASTE for Aluminum Electrolysis
Item Unit BSZH BSTH BSGH BSTN PTRD PTLD-1 PTLD-2
Ash Max. % 7 7 4 5 10 12 10
Resistance Max. Micron ohmm 73 73 73 - 75 95 90
Bulk Density Min. g/cm3 1.44 1.42 1.44 - 1.40 1.42 1.84
Real Density Min. g/cm3 1.87 1.86 1.87 - 1.84 1.42 1.42
Compressive Strength Min. Mpa 17 18 25 - 18 18 20
Volatile Component   % 7-11 8-12 9-13 50 max 9-12 12 max. 10 max.
Penetration   20oC - - - 450-650 - - -
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