Graphite Heating Element
Custom-machined graphite heating element for vacuum and atmosphere furnaces. Electrical resistivity 10–15 μΩ·m. Operating temperature to 2200°C. Available in tube, plate, meander and hairpin profiles from TOYO TANSO isostatic grades.
As a graphite heating element manufacturer machining directly from TOYO TANSO isostatic graphite, Expo Advanced Materials supplies elements for vacuum-furnace, CVD/CVI, PVD and semiconductor crystal-growth processes -- not a single furnace type.
Graphite heating elements machined from TOYO TANSO isostatic graphite offer stable resistivity, low thermal mass and excellent thermal shock resistance for continuous high-temperature cycling. Standard profiles include cylindrical tubes, flat plates and custom meander geometries. Each element is calculated for resistance uniformity to prevent localised hotspots, and supplied with a dimensional inspection report confirming compliance to ±0.01 mm tolerances.
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
Related Resources
For a heater dedicated to vacuum heat-treatment furnace duty, see our standard vacuum furnace graphite heater. For grade-selection guidance specific to vacuum furnaces, see our vacuum furnace heating element selection guide. Sourcing from India? See our graphite heating element manufacturer in India guide.
| Material | Isostatic graphite (TOYO TANSO grade or equivalent) |
| Max operating temp | 2200°C (inert/vacuum); 400°C (oxidising atmosphere) |
| Density | 1.78–1.85 g/cm³ |
| Ash content | <100 ppm standard; <30 ppm high-purity grade |
| Flexural strength | 45–60 MPa |
| Electrical resistivity | 10–15 μΩ·m |
| Thermal conductivity | 80–120 W/m·K |
| CTE | 4–5 × 10⁻⁶/K |
| Tolerance | ±0.01 mm standard; tighter on request |
| Shapes available | Rod, plate, U-shape, W-shape, custom |
| HS Code | 6815.10 |
