CFC Hot Zone Fasteners & Furnace Spares
Discover the Superior Benefits of CFC Products for Your Vacuum Furnace Applications In the demanding world of high-temperature processing, the choice of materials for your vacuum furnace components is crucial. Carbon-Carbon Composite (CFC) products have emerged as a game-changer, offering unparalleled performance and durability.
Description
High-Performance CFC Hot Zone Fasteners & Furnace Spares
CFC hot zone fasteners play a critical role in vacuum furnaces because they deliver stable performance under extreme temperatures and repeated thermal cycling. We design our carbon carbon composite bolts, nuts, and furnace spares for the demanding conditions inside high-temperature hot zones. Each component supports reliable clamping, precise alignment, and long-term structural stability. This page introduces our full range of CFC fasteners and furnace spares engineered for vacuum furnace applications.
Why CFC Fasteners Are Essential in Hot Zones
Inside a vacuum furnace, metal hardware loses strength as the temperature rises. CFC materials solve this challenge. Carbon carbon composite keeps its mechanical performance even at temperatures above 2000°C. Engineers rely on these fasteners to maintain consistent pressure on insulation panels, heating elements, and graphite assemblies.
CFC fasteners also weigh less than metal hardware, which reduces the thermal mass inside the hot zone. Lower mass means faster heating and cooling, improved temperature control, and better energy efficiency.
Our CFC Hot Zone Fastener Range
High-Temperature Fastening Solutions for Demanding Thermal Systems

CFC Bolts

CFC Bolts & Nuts

Round CFC Bolts

CFC Springs

Washers & Spacers

Threaded Rods & Studs

Tapered Pins & Locating Pins

Non-standard Fasteners
recommend Specification
FEATHERMO C/C Composites Strength & Thermal Stability
| Grade | Bulk Density | Flexural Strength |
Youngs Modulus |
Interlaminar C Shear Strength |
ompressive Strength |
Electrical Resistivity |
Temperature Rating |
| FE-80 Short fiber) |
1.65g/cm³ | 200MPa | 45GPa | 18MPa | 120MPa | 20μS2m | 2000℃ |
| FE-12 [Long fiber] |
1.2g/cm³ | 120MPa | 40GPa | 10MPa | 100MPa | 15~40μS2m | 2000℃ |
| FE-14 [Long fiber] |
1.4g/cm³ | 120MPa | 40GPa | 10MPa | 100MPa | 15~40μΩm | 2000℃ |
| FE-25 [Long fiber] |
1.5g/cm³ | 150MPa | 30GPa | 12MPa | 140MPa | 15~30μs2m | 2000℃ |
*The parameters in this table are for standard products. If high purity products are required, purification treatment can be provided, with a purified ash content of ≤20PPM maximum.
*The above values are typical, not guaranteed.
*Special needs and high-end series products can be customized through negotiation and communication with our company.
Performance Advantages
25 Years of Dedicated Experience in Graphite & Carbon Solutions
Built from high-purity carbon-carbon matrix materials, our CFC bolts and nuts exhibit a distinct performance profile tailored for use in extreme environments. These properties make carbon carbon composite fasteners ideal for precision fastening in environments where performance cannot be compromised by temperature, weight, or corrosion.Their technical advantages include:

Our fasteners provide dependable performance under demanding thermal conditions:
- High strength at elevated temperatures
- Low thermal expansion that preserves clamping force
- Excellent resistance to thermal shock
- Lightweight design for faster furnace response
- Long service life under repeated cycling
- Clean and stable behavior in vacuum or controlled atmospheres
These features help reduce downtime and improve furnace reliability.
Custom Furnace Spares and Special Fasteners
Vacuum furnace systems rarely follow a single standard. Each furnace has its own chamber size, hot zone layout, load structure, insulation arrangement, and thermal behavior. Because of this, many users find that conventional bolts, nuts, and threaded parts do not fit their design.
To solve these challenges, we offer fully customized CFC fasteners and furnace spares, designed to meet the specific mechanical and thermal demands of your equipment.
Our team works closely with furnace engineers, maintenance specialists, and system designers to understand the exact requirements of each project. Whether you need a longer CFC bolt for an insulation frame, a reinforced nut for a load-bearing joint, or a uniquely shaped threaded component for a special fixture, we can machine it to precise specifications.Custom options include:
- Non-standard bolt lengths and diameters
- Special thread pitches and proprietary thread types
- Reinforced head shapes for higher torque loads
- Lightweight spare components that reduce thermal mass
- Replacement fasteners for obsolete or legacy furnace models
- Complete hot zone spare kits tailored to your system
Each custom part is produced using high-quality carbon carbon composite material and is machined with tight tolerance control. We evaluate the working temperature, load distribution, thermal expansion rate, and installation environment to ensure that every spare delivers long-term stability inside the furnace.
If your system requires components that cannot be sourced from standard catalogs, our engineering team provides full support-from concept validation and material selection to machining, inspection, and final delivery. Whether you are upgrading a furnace, rebuilding a hot zone, or developing a new process, we can supply reliable, furnace-ready CFC spares that keep your equipment running safely and efficiently.
Where CFC Fasteners Are Used in a Vacuum Furnace
CFC fasteners and furnace spares support many key hot zone components:
- Graphite and CFC insulation frames
- Heating element brackets
- Structural support assemblies
- Load carriers and trays
- Custom fixtures and furnace replacements
Each part contributes to stable furnace operation and consistent heat distribution.

Manufacturing Capabilities & Quality Assurance
We manufacture all CFC profiles in our ISO-certified facility, using advanced forming, machining, and curing processes. Every part undergoes stringent quality inspection, and we support:
- Engineering review and co-design
- Rapid prototyping and precision machining
- Global logistics and documentation
- Full traceability and material certification upon request
Get in touch with our technical team to learn more about how our fastener carbon carbon composite profiles can elevate the safety, precision, and durability of your high-temperature systems.
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