Graphite Electrodes

1.diameters available: diameter from 100mm to 1050mm.
for rp grade, the dia is usually 100 -1060mm.
for rpi grade, the dia is usually 200 -650mm.
for hp grade, the dia is usually 300-650mm.
for shp grade, the dia is usually from 400-650mm.
for shp grade, the dia is usually from 400-650mm.

2. Standard grades – properties: rp, rpi, hp,shp &  uhp. (ge: electrodes, gn: nipples)
2.1). Rp:
resistivity (uom ): 8.0 for ge, 6.5 for gn
bending strength (mpa ): 9.8 for ge, 13 for gn
bulk density(g/cm3 ): 1.58 for ge, 1.66 for gn
c.t.e.(100 -600 c, 10 -6/c ): 2.9 for ge, 2.7 for gn
ash: 0.4% for ge, 0.2% for gn
2.2). Rpi:
resistivity (uom ): 7.5 for ge, 6.2 for gn
bending strength (mpa ): 10.0 for ge, 14 for gn
bulk density(g/cm3 ): 1.62 for ge, 1.70 for gn
c.t.e.(100 -600 c, 10 -6/c ): 2.8 for ge, 2.6 for gn
ash: 0.3% for ge, 0.2% for gn
2.3). Hp
resistivity (uom): 6.5 for ge, 5.5 for gn
bending strength (mpa ): 11 for ge, 15 for gn
bulk density(g/cm3): 1.64 for ge, 1.72 for gn
c.t.e.(100 -600 c, 10 -6/c ): 2.2 for ge, 2.0 for gn
ash: 0.2% for ge, 0.1% for gn
2.4). Shp
resistivity (uom): 6.0 for ge, 5.0 for gn
bending strength (mpa ): 12 for ge, 16 for gn
bulk density(g/cm3): 1.66 for ge, 1.75 for gn
c.t.e.(100 -600 c, 10 -6/c ): 2.0for ge, 1.8 for gn
ash: 0.2% for ge, 0.1% for gn

2.5). Uhp
resistivity (uom): 5.5 for ge, 4.2 for gn
bending strength (mpa): 18 for ge, 20 for gn
bulk density(g/cm3): 1.68 for ge, 1.78 for gn
c.t.e.(100 -600 c, 10 -6/c): 1.6 for ge, 1.4 for gn
ash: 0.1% for ge, 0.1% for gn