Fine Grain EDM Graphite Blocks High Accuracy Electrical Discharge Machining
Fine Grain EDM Graphite Blocks
,EDM Graphite Blocks High Accuracy
,Electrical Discharge Machining EDM Graphite Blocks
High Accuracy Fine Grain EDM Graphite Blocks – Industrial-Grade Description
High Accuracy Fine Grain EDM Graphite Blocks with High Density for Precision Machining
High accuracy fine grain EDM graphite blocks are engineered for precision machining applications requiring tight tolerances and superior surface integrity. Manufactured from high-density, ultra-fine grain graphite, these blocks deliver excellent isotropy, low porosity, and consistent electrical conductivity, ensuring stable and efficient EDM performance. Their optimized microstructure minimizes electrode wear and enables fine detail reproduction with high dimensional accuracy. With low thermal expansion and strong resistance to thermal shock, they maintain structural stability during high-speed discharge cycles. Widely used in mold making, aerospace components, and precision tooling, these graphite blocks ensure reliability, repeatability, and extended service life.
| Grade | Bulk Density (g/cm³) | Electric Resistivity (μΩ·m) | Compressive Strength (MPa) | Flexural Strength (MPa) | Shore Hardness | Ash Content (ppm) | Coefficient of Thermal Expansion (×10⁻⁶/℃) | Thermal Conductivity (W/m·K) | Particle Size (μm) | Applications |
| EDM-10 | 1.86 | 12 | 110 | 52 | 66 | 200 | 6 | 100 | 10 | EDM Precise Machining Molds |
| EDM-60 | 1.88 | 11 | 140 | 70 | 66 | 200 | 5.7 | 100 | 6 | EDM Precise Machining Molds |
| EDM-T8 | 1.75 | 13 | 90 | 50 | 60 | 200 | 6 | 100 | 8 | High-precision electrode, 3D curved glass molds of mobile phone |
| EDM-T5 | 1.77 | 14 | 100 | 55 | 65 | 200 | 5.8 | 100 | 5 | High-precision electrode, 3D curved glass molds of mobile phone |
| EDM-T3 | 1.75 | 16 | 120 | 65 | 68 | 200 | 5.8 | 85 | 3 | High-precision electrode, 3D curved glass molds of mobile phone |
