Extract from the Graphite COVA program of extruded grades

Grade
 Standard
Sizes
 Bulk
Density
 Porosity
 Spec. el.
Resitance*
 Com-t
pressivet
Strength		 Binding
Strength
 Ash
Content
 Thermanl
Expansion
Coefficient*
Thermanl
Conduc-
tivity
 Max. Grain.
Size
   (mm)  (g/cm³) (%)  (Ω mm²/m)  (N/mm²) (N/mm²)   (%) (10-6/K) (W/mK) (mm)
                     
CCF/XN ø 3 .. 9 1,78 - 1,82 11 - 14 6 - 8  60 38 - 42 < 0,1 2,0 - 2,5 120 - 140 0,35
CCF/XN ø 10 ..25 1,76 - 1,80  12 - 15  6 - 8 35 - 40 20 - 25 < 0,1 1,8 - 2,5 120 - 140 0,6
CCF/XN ø 30 .. 105 1,72 - 1,75  14 - 17  6 - 8 30 - 40 20 - 25 < 0,1 1,8 - 2,5 120 - 140

0,6
CCF/XN ø 110 .. 280 1,70 - 1,73  16 - 19  6 - 8 26 - 32 17 - 20 < 0,1 1,6 - 2,2 120 - 140 0,8
CCF/XN  Plates ** 1,66 - 1,73 18 - 20  5 - 8 22 - 28 16 - 19 < 0,1 1,6 - 2,2 120 - 140 0,8
NI/DXN
 ø 200 .. 300 1,76 - 1,80  12 - 15  4 - 5 50 25 < 0,25 1,3 - 1,6 150 - 180 2
EL/XN
 ø 300 .. 600 1,67 - 1,73  17 - 20  5 - 7 23 - 28 10 - 14 < 0,8 1,5 - 2,0 130 - 150 10 - 20
 - indicated figures to be understood as average values / Typical ranges -
 
* in extrusion direction GRADES
** sizes in mm: 108 x 495 x 1100, 1800 140 x 428 x 1100                   new indentification former identification
  120 x 330 x 1100 170 x 375 x 1100 CCF/XN ø 3 .. 25 mm 5259/XN
  - other sizes and lengths on demand CCF/XN ø 30 .. 105 mm JU/XN
      CCF/XN Plates ELY
 
 > Further grades, special dimensions and special impregnations on demand <
 
 
... to the molded and isostatically pressed grades