OEM manufacturer Graphite Brick - Graphite Special-shaped Parts – Aohui

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