Supergraf

Natural Crystalline graphite with high-performance as carbon additive for steel and cast iron

Produced in various grain size profiles with different grades of carbon concentration, Supergraf – unlike other fuel types – is manufactured from natural crystalline graphite, specially designed for the addition of carbon in steel and cast iron.

The carbon content of Supergraf is controlled and monitored in our production line, which ensures its application demands, besides very low impurity levels.

Supergraf does not absorb moisture, thus allowing storage for long periods, as long as it is placed on pallets and in locations protected from moisture, and its distribution is done via pallets with 25 kg bags or big bags.

Key Features

  • Rapid absorption;
  • High concentration of carbon;
  • It is not a by-product of any productive process;
  • It does not cause any harm to the environment or health risks;
  • Ultra low levels of sulphur, nitrogen and other impurities;
  • Distributed in convenient and safe packaging;
  • It offers no explosion risks;
  • Resistant to oxidation and chemicals.

Main Applications

  • Iron that is grey, nodular, white, malleable and vermicular;
  • Cored Wire;
  • Special steel;
  • Brake pads and linings;
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Chemical Properties

Parameters SuperGraf 08 SuperGraf 08 BS SuperGraf 08 F SuperGraf 05 SuperGraf 05 M SuperGraf 05 F
G+ T+ G T G T G T G T G T
Carbon % (LOI) ≥ 92,0 92,6 ≥ 92,0 93,1 ≥ 92,0 92,2 ≥ 95,0 95,2 ≥ 95,0 96,4 ≥ 95,0 95,7
Ash % ≤ 8,0 7,4 ≤ 8,0 6,9 ≤ 0,8 7,8 ≤ 5,0 4,8 ≤ 5,0 3,6 ≤ 5,0 4,3
Volatile % ≤ 1,7 1,05 ≤ 1,7 1,03 ≤ 1,7 1,08 ≤ 1,7 1,01 ≤ 1,7 0,73 ≤ 1,7 0,95
Moisture % ≤ 0,3 0,09 ≤ 0,3 0,08 ≤ 0,3 0,08 ≤ 0,3 0,07 ≤ 0,3 0,09 ≤ 0,3 1
Sulphur ppm ≤ 200 120 ≤ 180 87 ≤ 200 110 ≤ 200 83 ≤ 200 74 ≤ 200 112
Nitrogen ppm ≤ 200 85 ≤ 200 49 ≤ 200 90 ≤ 200 51 ≤ 200 59 ≤ 200 95
Hydrogen ppm NE 1290 NE 1250 NE 1280 NE 1250 NE 1270 NE 1275

Physical Properties

Mesh Size SuperGraf 08 SuperGraf 08 BS SuperGraf 08 F SuperGraf 05 SuperGraf 05 M SuperGraf 05 F
Accumulated retained in %
ASTM Mesh mm G+ T+ G T G T G T G T G T
3/8" 9,50 NE XX NE XX NE XX NE XX NE XX NE XX
8 2,36 NE 86,8 NE 86,3 NE 0,1 NE 89,7 NE XX NE XX
12 1,70 ≥ 90 91,9 ≥ 90 92,0 ≤ 20 2,6 ≥ 90 93,7 ≥ 70 88,3 ≤ 20 8,7
18 1,00 ≥ 95 95,6 ≥ 95 95,8 NE 18,5 ≥ 95 96,5 ≥ 80 94,7 NE 67,9
20 0,85 NE 96,1 NE 96,3 NE 72,6 NE 97,1 NE XX NE XX
40 0,425                 NE 97,8 NE 93,0
                           
Average Size (T) xx 4,0 mm xx 4,0 mm xx 1,0 mm xx 4,0 mm xx 3,8 mm xx 0,6 mm
Real Density   2,24 g/cm3   2,24 g/cm3   2,24 g/cm3   2,24 g/cm3   2,24 g/cm3   2,24 g/cm3
Bulk Density (T)   1,12 g/cm3   1,12 g/cm3   0,91 g/cm3   1,15 g/cm3   1,11 g/cm3   0,96 g/cm3
NE = Unspecified T = Typical Value G = Guaranteed limits