Isostatic Graphite for Metallurgy
Product overview
The medium heard fine grain graphite IEG-45 with isostatic properties is a material that can be easy machined to precise tolerances and a fine surface finish. It is characterised by high temperature resistance, moderate porosity and low thermal expansion. These parameters making it ideal for metal casting and metallurgy applications also guarantee economical process.
Cold isostatic pressing
To get the isostatic properties in graphite IEG is needed the special cold isostatic pressing (CIP). It uses fluid as a means of applying pressure to the mould at room temperature. It is the process by which fluid medium especially liquid is preferred as a working medium. It is helpful in distributing pressure uniformly over the compaction material contained in a rubber bag. After this process the graphite material gets rid of anisotropy in some direct.
| Typical property | Test standards | Unit | IEG-45 |
|---|---|---|---|
| Bulk density | ASTM C838-96 | g/cm3 | 1,82 |
| Porosity | ASTM C559-90 | % | 18 |
| Flexural strength | ASTM C651 | MPa | 34 |
| Compressive strength | ASTM C695 | MPa | 70 |
| Young module | ASTM C469-94 | GPa | 12 |
| Shore D hardness | scale D | SHD | 48 |
| Specific resistance S.R.E. | ASTM C611-69 | μΩm | 11 |
| Thermal conductivity | ASTM E1225-9 | W/mK | 115 |
| Coefficient CTE at 100°C | ASTM E228-11 | 10-6/K | 3,5 |
| Purity, carbon content | ASTM C561-91 | % | 99,9 |
| Standard block sizes | - | mm | 490 x 180 x 305 |
Field of applications
Continuous casting dies for bras and bronze, tools for sintering process, high temperature accessories for foundry, tools and moulds for precious metals.