Isostatic Graphite Rods
Versatile Applications of Isostatic Graphite Rods
Reliable in High-Temperature Furnace Systems
Isostatic graphite rods perform as heating elements, connectors, and support shafts
inside vacuum and sintering furnaces. Their uniform density supports even heat flow,
and high purity helps prevent contamination during thermal processing.
Essential for Semiconductor Equipment
In semiconductor and coating systems, graphite rods are machined into wafer carriers,
diffusion holders, and heat shields. They deliver the purity, stability, and precision
required for cleanroom environments and consistent results.
Precision Material for EDM Machining
Graphite rods serve as ideal electrodes in EDM applications. Fine grain and strong
conductivity enable precise spark control and smooth surface finishes, while low tool
wear supports efficient mold and die manufacturing.
Durable Choice for Metallurgy and Casting
In metal processing, these rods withstand extreme heat as crucible inserts, forming tools,
or casting components. Thermal shock resistance helps maintain dimensional stability over
repeated cycles.
Trusted by Research and Engineering Teams
Laboratories and R&D centers use isostatic graphite rods to test conductivity, heat transfer,
and material performance. Predictable behavior and easy machinability make them ideal for
Description
High-Performance Isostatic Graphite Rods
At SHJ CARBON, we focus on producing high-quality isostatic graphite rods that combine strength, purity, and easy machinability. Each rod is pressed under equal pressure from all directions, giving it a uniform structure and reliable behavior in demanding applications.
These graphite rods are ideal for engineers and manufacturers who need a stable material for high-temperature or electrical environments. Whether you are machining electrodes, connectors, or custom furnace components, SHJ rods deliver consistent results every time.
High Density and Uniform Structure
The secret behind every isostatic graphite rod lies in its even density and fine grain.
Unlike extruded or molded graphite, our rods are completely isotropic - they hold the same strength and conductivity in every direction.
This uniformity gives engineers total control over machining and performance.
The rods remain dimensionally stable under rapid heating and cooling, making them suitable for use up to 3000°C in vacuum or inert atmospheres.
Material Properties That Drive Reliability
Every SHJ graphite rod is refined, purified, and precisely machined to meet modern industrial needs. The result is a material that performs under pressure - clean, predictable, and consistent.
Key Features:
- High purity and low ash for clean process environments
- Stable electrical resistivity for heating and conduction
- Excellent thermal conductivity for efficient heat transfer
- Smooth machinability with minimal tool wear
- Consistent batch quality for repeat production
Each rod is the product of strict process control and years of experience in graphite technology.
Technical Specifications
| Grade | Bulk Density |
Shore Hardness |
Ash Content |
Compressive Strength |
Flexural Strength |
Resistivity | Thermal Grain Conductivity Size |
Grain Size |
| ■IS-11 | 1.82g/cm³ | 63HSD | 50PPM | 115Mpa | 52Mpa | 10~15μQm | 120W/mk | 8~10μm |
| ■IS-15 | 1.90g/cm³ | 72HSD | 50PPM | 160Mpa | 70Mpa | 11~13μΩm | 110~120W/mk | 5μm |
| ■IS-14 | 1.85g/cm³ | 68HSD | 50PPM | 120Mpa | 62Mpa | 11~13μΩm | 100~120W/mK | 7μm |
| ■IS-41 | 1.78g/cm³ | 76HSD | 100PPM | 122MPa | 69MPa | 15.7μΩm | - | 10μm |
| ■IS-42 | 1.78g/cm³ | 65 HSD | 300PPM | 113Mpa | 57Mpa | 12.5μΩm | - | 13μm |
| ■ IS-51 | 1.81g/cm³ | 60HSD | 50PPM | 90Mpa | 45Mpa | 11~14μΩm | - | 12μm |
| ■IX-11 | 1.80g/cm³ | 85HSD | 200PPM | 180Mpa | 90Mpa | 25μQm | - | 4μm |
| ■IX-12 | 1.81g/cm³ | 92HSD | 200PPM | 190Mpa | 92Mpa | 25μΩm | - | 4μm |
| ■FM-12 | 1.75g/cm³ | 42HSD | 500PPM | 65Mpa | 38Mpa | 8~11μΩm | 110~120W/mk | 13μm |
| ■FM-13 | 1.85g/cm³ | 48HSD | 50PPM | 85Mpa | 46Mpa | 8~10μΩm | 130~140W/mk | 13μm |
| ■FM-22 | 1.80g/cm³ | 50HSD | 1000PPM | 75Mpa | 38Mpa | 12μΩm | - | 13μm |
| Recommended App Tips: ■ Photovoltaic ■ EDM ■ General Scope ■ Mechanical Applications | ||||||||
Versatile Applications of Isostatic Graphite Rods
The versatility of isostatic graphite rods makes them essential across multiple industries.
They form the foundation for components that must endure high temperatures, maintain dimensional precision, and deliver consistent electrical or thermal performance.
Vacuum and Sintering Furnaces
In vacuum and sintering furnaces, graphite rods serve as heating elements, power connectors, and load-bearing supports.
Their uniform density ensures even heat distribution, while high purity prevents contamination inside controlled atmospheres.
The rods maintain stability over long production cycles, reducing maintenance and improving furnace efficiency.
Semiconductor Processing
In the semiconductor field, isostatic graphite rods are machined into wafer carriers, diffusion holders, and heat shields.
Their low impurity level minimizes particle generation and protects sensitive components during diffusion or deposition.
Engineers rely on their predictable conductivity and structural precision to support repeatable manufacturing outcomes.
EDM Machining
Electrical discharge machining (EDM) requires electrode materials with excellent conductivity and consistent density.
Graphite rods provide exactly that - they can be shaped into fine electrodes capable of precise spark control and smooth surface finishes.
Their machinability also reduces electrode wear, saving both time and tooling costs during complex mold production.
Metallurgy and Casting
In metallurgy, isostatic graphite rods are used as crucible inserts, mold components, and handling tools that face intense thermal stress.
Their strength and resistance to thermal shock make them ideal for molten metal contact and forming operations.
Even after repeated heating and cooling, the rods retain their shape and mechanical integrity.
Research and Testing
For laboratories and R&D centers, graphite rods offer a dependable test material for evaluating heat transfer, conductivity, and high-temperature performance.
Researchers use them to simulate extreme conditions or to fabricate small prototypes for new thermal systems.
Their stability and precision make them a trusted reference in both academic and industrial research setups.
Machining Flexibility
Rods provide a practical and efficient starting shape.
They can be cut, drilled, or turned into virtually any custom design your process requires - from electrodes and connectors to specialty structural parts.
Each rod maintains consistent material properties from the core to the surface, ensuring reliable results after machining.
Precision Machining and Custom Options
SHJ CARBON manages every production stage - from raw material to finished graphite rod. We machine to exact specifications and maintain full quality traceability for each batch.
- Diameters from Φ5 mm to Φ500 mm, lengths up to 1200 mm
- Custom machining from customer drawings
- Controlled tolerance and surface finish
- Prototype and mass production support
- Global delivery with safe export packaging
We don't just supply graphite - we engineer it to fit your process perfectly.
Continuous Innovation in Graphite Manufacturing
For more than 25 years, SHJ CARBON has supported global industries with advanced graphite materials. Our experience in isostatic graphite pressing, purification, and machining allows us to maintain consistent quality across every shipment.
We keep improving - investing in better equipment, cleaner processing, and smarter inspection to match international standards. Today, we export to over 30 countries, supplying customers in semiconductors, metallurgy, and precision manufacturing.
Our mission is simple: build long-term partnerships by delivering reliability and performance, not just raw materials.
Get Your Custom Graphite Rod Solution
Tell us your required diameter, length, and application. Our engineers will match the right isostatic graphite grade and provide a detailed quotation within 24 hours.
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