High Pure Graphite Heating Element
Ultra-high-purity graphite heating element for semiconductor crystal growth, precision sintering and contamination-sensitive processes. Ash content <30 ppm. Operating temperature to 2200°C. TOYO TANSO TTK-87 grade or equivalent.
High-purity graphite heating elements machined from TOYO TANSO TTK-87 or equivalent ultra-pure isostatic graphite. Ash content below 30 ppm (verified by spectrographic analysis) eliminates contamination risk in semiconductor crystal growth (Czochralski and float zone), III-V compound sintering and precision ceramic processing. Purification by halogen gas treatment is available for ash content below 10 ppm total. Supplied with material purity certificate and full dimensional inspection report.
Applications
- Vacuum heat treatment furnaces — hardening, brazing, sintering
- CVD/CVI processing systems
- PVD coating chambers
- Semiconductor crystal growth furnaces (CZ, FZ)
- Solar ingot casting furnaces
- Atmosphere sintering furnaces (H₂, N₂, Ar)
- High-temperature laboratory equipment
Compatible Furnace Brands
Ipsen · ALD Vacuum Technologies · SECO/WARWICK · ECM Technologies · Gasbarre · Solar Manufacturing · Shimadzu · Nabertherm · Schmetz · BMI Fours
Why Expo Advanced Materials
- TOYO TANSO Japan authorised partner — premium isostatic graphite grades with full raw-material traceability
- Qualified supplier to SECO/WARWICK — supplying graphite components to their global vacuum furnace operations
- Full material test certificate (MTC) + dimensional inspection report with every shipment
- Custom machined to your DXF, STEP, PDF or IGES drawings within 2–4 weeks
- ISO 9001:2015 certified | Export to 30+ countries | 24-hour quote turnaround
| Material | High-purity isostatic graphite (TOYO TANSO TTK-87 or equivalent) |
| Max operating temp | 2200°C (inert/vacuum); 400°C (oxidising atmosphere) |
| Density | 1.80–1.88 g/cm³ |
| Ash content | <30 ppm (high-purity); <10 ppm on request |
| Flexural strength | 50–65 MPa |
| Electrical resistivity | 10–14 μΩ·m |
| Thermal conductivity | 90–130 W/m·K |
| CTE | 4–5 × 10⁻⁶/K |
| Tolerance | ±0.01 mm standard; ±0.005 mm on request |
| Shapes available | Rod, plate, U-shape, W-shape, annular, custom |
| HS Code | 6815.10 |
