1.diameters available: diameter from 500mm to 1400mm. 2.standard grades -normal and high. 2.1).normal graderesistivity (uom ): 45 maxbulk density(gcm3 ): 1.55 minbending strength (mpa ): 3.5 - 7.0compressive strength (mpa): 20 minc.t.e.(100 -600 c, 10 -6c ): 3.2 - 4.8ash: 2.5% max 2.2). High grade:resistivity (uom ): 38 maxbulk density(gcm3 ): 1.58 minbending strength (mpa ): 4.0 - 7.5compressive strength (mpa): 20 minc.t.e.(100 -600 c, 10 -6c ): 3.0 - 4.6ash: 2.0% max 3. Current carrying capacities:3.1).for normal grade:dia capacity current density