Features: High density, fine grain size, high purity, low specific resistance and high strength with ease of precise machining. Also features include excellent thermal shock properties, high temperature and oxidation resistance with good anti-corrosion.
Application: It is widely used for EDM machining, mould for sintering diamond, crystallizer for horizontal continuous casting, crucible for melting nonferrous metal, industrial furnace, heating element in vacuum furnace, etc.
industrial furnace, heating element in vacuum furnace, etc.
|
Technical Specification |
BTG-3 |
BTG-4 |
BTG-5 |
BTG-6 |
|
Bulk Density（g/cm3） |
≥1.72 |
≥1.78 |
≥1.85 |
≥1.9 |
|
Ash Content（PPM） |
≤ 1000 |
≤1000 |
≤1000 |
≤1000 |
|
Shore Hardness |
≥40 |
≥40 |
≥45 |
≥50 |
|
Specific Resistance (μ.Ω.m) |
≤12 |
≤12 |
≤10 |
≤8 |
|
Flexural Strength (MPa) |
≥30 |
≥35 |
≥40 |
≥45 |
|
Compressive Strength (MPa) |
≥50 |
≥60 |
≥70 |
≥85 |
|
Max. Grain Size(μm) |
≤43 |
≤43 |
≤43 |
≤43 |
|
Coefficient of Thermal Expansion Mm/℃ |
≤4.5*10-6 |
≤4.5*10-6 |
≤4.4*10-6 |
≤4.4*10-6 |
Note: 1. Ash content of all grades can be purified to 50 PPM. 2. Special property requirements can also be specially produced.
Size of molded graphite
Note: 1. The details above arereference sizes, if there exit some error. The sizes are subject to actual measurement. 2.Larger sizes are specially pressed and smaller sizes further machined. Machined parts fabricated to drawings with anti-oxidation and anti-corrosion cover available.