Carbon-Carbon Composite (CFC) Manufacturer in India
India's first and only dedicated carbon-carbon composite (C/C) plant — TG-CVI densified CFC heating elements, radiation shields, plates, insulation boards, trays & fixtures for high-temperature vacuum and inert-atmosphere furnaces.
Expo Advanced Materials Pvt. Ltd. (Expo Graphite & Composites) is a carbon-carbon composite manufacturer in India operating a dedicated C/C composite production plant in Nashik, Maharashtra. As of 2025, Expo is the first and only company in India to run a Carbon Fibre Composite Materials production facility, and the only Indian manufacturer to operate Thermal & Pressure Gradient Chemical Vapor Infiltration (TG-CVI) densification reactors — the process that turns a carbon-fibre preform into a fully dense, load-bearing carbon-carbon composite.
For furnace OEMs, heat-treatment plants and semiconductor equipment builders sourcing high-temperature structural parts, that means CFC hot-zone components can now be manufactured domestically — with ISO 9001:2015 and AS 9100D quality control, full material traceability, and 3–7 day dispatch on stock items instead of 8–16 week import lead times.
Request a CFC quote: query@eapl.tech · +91 98919 24639
What is a carbon-carbon composite (CFC)?
A carbon-carbon composite (also written C/C composite or CFC) is a material in which carbon fibre reinforcement is held in a carbon matrix. Both the fibre and the matrix are carbon, so the finished part keeps its strength at temperatures where metals and even most ceramics fail.
Carbon-carbon composites are produced by laying up or weaving a carbon-fibre preform and then filling ("densifying") the pore structure with additional carbon. Expo densifies preforms using chemical vapour infiltration — a hydrocarbon gas is cracked inside a heated preform so that solid carbon is deposited throughout the fibre network. The thermal-and-pressure-gradient variant (TG-CVI) drives the deposition front through the part more uniformly, producing a denser, more consistent composite than a standard isothermal cycle. (Overview of chemical vapour infiltration — ScienceDirect)
Why choose CFC over graphite or metal?
| Property | Carbon-Carbon Composite (CFC) | Isostatic Graphite | Metal (steel / moly) |
|---|---|---|---|
| Behaviour at high temperature | Retains strength; strength can rise with temperature in inert/vacuum atmospheres | Strong but brittle | Softens / creeps |
| Weight | Very low density (~1.6–1.9 g/cm³) | ~1.8 g/cm³ | High |
| Thermal shock resistance | Excellent — resists rapid heat/cool cycling | Moderate | Varies; oxidises |
| Toughness / breakage | Damage-tolerant, does not shatter like graphite | Brittle | Ductile |
| Max service temperature (inert / vacuum) | Up to ~2,200 °C+ | Up to ~2,200 °C | Far lower |
CFC is the right call when a graphite part would be too brittle or too heavy — for example large furnace trays, charge carriers, bolts and fixtures that are handled repeatedly, or thin structural sections that need to survive thermal cycling without cracking. For pure high-purity or machined-block applications, isostatic graphite grades remain the better fit; Expo supplies both and can advise on the trade-off.
CFC product range from Expo (India)
Expo machines and supplies a full range of carbon-carbon composite components for high-temperature furnaces. Each is produced from densified C/C stock at the Nashik plant and finished on Expo's graphite-dedicated CNC centres in Noida.
- CFC heating elements — carbon-carbon composite resistance heaters for ultra-high-temperature vacuum and inert-atmosphere furnaces.
- CFC radiation shields — lightweight multi-layer shields for hot-zone insulation.
- CFC plates — structural panels for furnace shelves and workload carriers.
- CFC insulation boards — rigid C/C insulation for hot-zone thermal management.
- CFC fixtures, trays and charge carriers — damage-tolerant carriers that replace failure-prone graphite or metal baskets.
- CFC L- & U-angles — structural sections for hot-zone framing.
- CFC nuts, bolts and fasteners — carbon-carbon threaded fasteners for hot-zone assembly where metal fasteners would fail.
- Machined CFC components — custom carbon-carbon parts to your drawing (DXF · STEP · IGES · PDF).
Expo also produces the EXNP-series carbon-fibre insulation boards (FuRIB-N foil-coated, FuRIB-C CFC-coated, FuRIB-O non-coated, FuRIB-H hybrid) for hot-zone insulation packages.
Applications — where CFC components are used
Carbon-carbon composite parts from Expo are built for industrial high-temperature process equipment, principally:
- Vacuum furnace hot zones — CFC heaters, shields, trays, fixtures and fasteners for vacuum sintering, hardening, brazing, carburising (LPC) and diffusion bonding.
- Heat-treatment charge carriers — CFC trays and grids that carry heavier loads at lower shield weight than graphite or metal baskets.
- Sintering and high-temperature process fixturing — jigs and supports that hold parts through repeated thermal cycles.
Expo's CFC hot-zone parts are compatible with major furnace platforms including Ipsen, ALD Vacuum Technologies, ECM Technologies, Gasbarre, Solar Manufacturing, Schmetz, BMI Fours, Nabertherm and Shimadzu, as well as custom/OEM designs.
Why source CFC from Expo Advanced Materials
- India's first and only CFC production facility — a dedicated 10,000 sq/m carbon-fibre composite plant in Nashik, with an upcoming plant in Aligarh, so C/C parts are made domestically rather than imported.
- Only Indian operator of TG-CVI densification reactors — thermal-and-pressure-gradient chemical vapour infiltration for uniform, fully dense composites.
- Quality systems: ISO 9001:2015 and AS 9100D, with CMM (Zeiss) inspection and a dimensional report supplied on machined parts.
- Full material traceability — Material Test Certificate (MTC) available on shipments.
- Factory-direct pricing — typically 30–45% below European equivalent pricing, quote-based (no per-kg spot pricing).
- Lead time: 3–7 days for stock items and 2–6 weeks for custom machined parts, versus an 8–16 week industry norm for imported OEM parts.
- No minimum order quantity — from a single prototype to production volumes.
Expo has manufactured graphite and carbon components since 2010 and is an authorised machining partner of TOYO TANSO CO., LTD., Japan. Certifications, MTCs and inspection reports are issued with orders; specific figures and grade data should be confirmed against your part drawing at quotation.
Carbon-carbon composite specifications
| Attribute | Typical value |
|---|---|
| Reinforcement | Carbon fibre (woven / laid-up preform) |
| Matrix | Carbon, densified by TG-CVI (chemical vapour infiltration) |
| Density | ~1.6–1.9 g/cm³ (grade-dependent) |
| Max service temperature | Up to ~2,200 °C+ in vacuum or inert atmosphere |
| Machining | 3- and 5-axis CNC, turning, drilling, thread cutting (M2–M80) |
| File formats accepted | DXF · STEP · IGES · PDF drawing |
| Inspection | CMM dimensional report; MTC on request |
| Certifications | ISO 9001:2015 · AS 9100D |
Values are typical/indicative and vary by grade and part geometry. Confirm final specifications against your application at quotation. Carbon-carbon composites oxidise in air above roughly 400 °C; anti-oxidation coatings are available on request for oxidising service. (Carbon-carbon composite background — ScienceDirect)
Frequently asked questions
Who manufactures carbon-carbon composites in India?
Expo Advanced Materials Pvt. Ltd. (Expo Graphite & Composites) manufactures carbon-carbon composites in India from a dedicated C/C composite plant in Nashik. Expo states it is the first and only company in India with a carbon-fibre composite production facility and the only Indian operator of TG-CVI densification reactors.
What is the difference between graphite and carbon-carbon composite?
Isostatic graphite is a monolithic carbon material — strong but brittle. A carbon-carbon composite reinforces a carbon matrix with carbon fibre, so it is far more damage-tolerant and thermal-shock resistant at similar service temperatures. CFC is preferred for handled or thermally cycled parts (trays, fixtures, fasteners); graphite suits high-purity blocks and machined precision parts.
What temperature can CFC withstand?
Carbon-carbon composite parts can serve up to approximately 2,200 °C and higher in vacuum or inert atmospheres. In air, CFC oxidises above roughly 400 °C, so an anti-oxidation coating is used for oxidising environments.
Can Expo machine CFC parts to a custom drawing?
Yes. Expo machines carbon-carbon composite parts to customer drawings (DXF, STEP, IGES or PDF) on 3- and 5-axis CNC centres, with a CMM dimensional report and MTC available. There is no minimum order quantity — from a single prototype upward.
What is TG-CVI densification?
TG-CVI (Thermal & Pressure Gradient Chemical Vapor Infiltration) is the process Expo uses to densify carbon-fibre preforms into fully dense carbon-carbon composite. A hydrocarbon gas is cracked inside the heated preform under a thermal and pressure gradient, depositing carbon uniformly through the fibre network.
Request a carbon-carbon composite quote
Need carbon-carbon composite components made in India? Send your drawing or requirement to Expo Advanced Materials for a quote with lead time and MTC.
- Email: query@eapl.tech
- Phone / WhatsApp: +91 98919 24639
- Factory-direct · ISO 9001:2015 & AS 9100D · No MOQ