Graphite block is a natural mineral formed by carbon atoms arranged in a hexagonal honeycomb shape. It has excellent physical properties such as electrical conductivity, thermal conductivity, low density and high strength, as well as good chemical properties such as chemical stability and corrosion resistance. It is widely used in battery electrodes, heat exchangers, lubricants, coatings, catalyst carriers and electronic devices.
| graphite block & rod dimesions: | ||||
| Grpahite block | 610*510*210/260 | 620*520*260/300 | 700*350*230 | 950*650*310 |
| 820*420*210/260/310 | 1150*1150*290 | 1250*600*300 | 1300*700*320/350 | |
| 1350*800*350 | 1400*800*260 | 1600*800*350 | 1650*650*350 | |
| 2000*700*320 | 2200*710*540 | |||
| graphite rod | φ130*280 | φ130/140/150/160*500 | φ160*650/900 | φ180*850/900 |
| φ200*900 | φ220*900/1000 | φ240*900 | φ260*850/900 | |
| φ280*900 | φ300*850/900 | φ330*900 | φ360/400/430*1000 | |
| φ460*1000/1050 | φ500*1000/1050 | φ550*1000/1100 | φ600/650*1000 | |
| φ700*750 | φ1100*700 | φ980/1100*900 | φ1100*1100 |
Graphite block material data sheet
| W-4 | W-5 | W-6 | W-7 | W-8 | WH-5 | WH-7 | WH-8 | ||
| bulk density | g/cm³ | 1.75 | 1.85 | 1.9 | 1.82 | 1.9 | 1.68 | 1.85 | 1.9 |
| Resistivity | uΩm | 8-11 | 8-10 | 8-9 | 11-13 | 11-13 | 13-15 | 11-13 | 11-13 |
| Thermal conductivity(100℃) | W/m.k | 110-120 | 130-140 | 130-140 | 110-120 | 110-120 | 80-100 | 100-120 | 110-120 |
| Thermal expansion coefficient (room temperature - 600℃) | 10-6/℃ | 5.46 | 4.75 | 4.8 | 5.8 | 5.85 | 5.8 | 5.9 | 5.85 |
| Shore Hardness | HSD | 42 | 48 | 53 | 65 | 70 | 60 | 68 | 72 |
| Flexural strength | Mpa | 38 | 46 | 55 | 51 | 60 | 38 | 62 | 70 |
| Compressive strength | Mpa | 65 | 85 | 95 | 115 | 135 | 80 | 135 | 160 |
| Elastic modulus | GPa | 9 | 11.8 | 12 | 12 | 13 | 8.8 | 12 | 13 |
| Porosity | % | 17 | 13 | 11 | 12 | 11 | 18 | 12 | 11 |
| Ash | PPM | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Purification of ash | PPM | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| grain size | um | 13-15 | 13-15 | 8-10 | 8-10 | 8-10 | 8-10 | 7 | 5 |
| Application | common use | common use | Continuous casting, sintering, high temperature metallurgy | EDM,Photovoltaic | EDM,Photovoltaic,GLASS | EDM | common use,EDM | EDM,Photovoltaic,GLASS |
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