Features - Fine grain - Homogeneous structure - High density - Excellent thermal conductivity - High mechanical strength - Proper electrical conductivity - Minimum wettability to molten metals - Hard surface and good flexural strenght - Resistance to chemical erosion and thermal shock. Physical and chemical index Fine-grain Specialty Graphite FXG-1 Fine-grain Specialty Graphite FXG-2 Item Unit Guarantee value Typical value Guarantee value Typical value Max grain size mm 0.8 0.8 0.8 0.8 Bulk density g/cm3 ≥1.70 1.73 ≥1.73 1.76 Specific resistance μΩ.m ≤8.5 7.5 ≤8.0 7 Bending strength MPa ≥10.0 11 ≥12.0 12.5 Compressive strength MPa ≥24.0 27 ≥31.0 34 Thermal Condcutivity W/(m.k) ≥120 150 ≥130 160 C.T.E.(100-600) °C 10-6/°C ≤2.5 2.2 ≤2.5 2.1 Ash content % ≤0.3 0.09 ≤0.3 0.09   Item Unit Guarantee value Typical value Guarantee value Typical value Max grain size mm 2 2 2 2 Bulk density g/cm3 ≥1.58 1.6 ≥1.70 1.75 Specific resistance μΩ.m ≤11.5 10.5 ≤8.5 7.5 Bending strength MPa ≥6.0 6.5 ≥9.0 9.5 Compressive strength MPa ≥18.0 18.5 ≥30.0 31 Modulus of elasticity GPa ≤9.3 7.5 ≤12.0 9.5 C.T.E.(100-600) °C 10-6/°C ≤2.5 2.4 ≤2.5 2.3 Ash content % ≤0.3 0.09 ≤0.3 0.09 High pure graphite high pure graphite Item Unit baked twice baked three time baked four times impregnated once impregnated twice Impregnated three times grain size mm ≤325mesh ≤325mesh ≤325mesh Bulk density g/cm3 ≥1.68 ≥1.78 ≥1.85 Specific resistance μΩ.m ≤14 ≤14 ≤13 Bending strength MPa ≥25 ≥40 ≥45 Compressive strength MPa ≥50 ≥60 ≥65 Ash content % ≤0.15 ≤0.1 ≤0.05 Isostatic graphite Item Unit Isostatic graphite grain size μm 5-22 Bulk density g/cm3 1.75-1.85 Specific resistance μΩ.m 10-15 Bending strength MPa ≥40 Compressive strength MPa ≥70 Shore hardness ≥5 C.T.E.(100-600) °C 10-6/°C 3.2-5.2 Modulus of elasticity GPa 9.5-12.5