BZNCarbon manufactures precision-engineered carbon-carbon composite screws, studs, and fastening elements ideal for extreme thermal and mechanical environments. These fasteners are fabricated using advanced C/C materials—including 2.5D, 3D, and 4D fiber architectures—providing excellent strength-to-weight ratios and prolonged service life in high-stress applications.

Standard production density ranges between 1.7–1.9 g/cm³, and customized formulations are available upon request. Whether you’re building aerospace assemblies or high-temperature furnaces, our C/C fasteners deliver exceptional reliability where traditional materials fail.

What Are Carbon-Carbon Composite Fasteners?

C/C screws and studs are lightweight, thermally stable components manufactured from carbon fiber reinforced carbon matrix composites. Compared to metal fasteners, these offer superior thermal shock resistance, zero magnetic interference, and corrosion immunity, making them ideal for specialized industrial environments.

Applications

Aerospace: Fastening components in rocket nozzles, thermal shields, and satellite structures
Semiconductor and Solar: Secure elements in CVD reactors and crystal growing furnaces
Metallurgy and Sintering: Used in high-temperature hot pressing, sintering dies, or tooling fixtures
Medical Devices: Applied in high-purity environments where metallic contamination is unacceptable
Research Laboratories: Securement in nuclear reactors and plasma chambers
Electric Vehicles: Lightweight structural reinforcement in next-gen battery systems

Technical Specifications

Property	Unit	Value (2.5D Reference)
Bulk Density	g/cm³	≥ 1.7
Carbon Content	%	≥ 99
Tensile Strength	MPa	40–60
Tensile Modulus	GPa	25–30
Bending Strength (XYZ)	MPa	80–110
Compressive Strength (XYZ)	MPa	90–130 (up to 260)
Shear Strength	MPa	50–60
Interlaminar Shear Strength	MPa	> 12
Linear Expansion Coefficient	10⁻⁶/K	0.5–1.3
Thermal Conductivity	W/m·K	30–50
Electrical Resistivity	µΩ·m	15–30
Processing Temperature	°C	> 2000
Ash Content	ppm	≤ 100
Metal Impurity Content	ppm	≤ 50

Other grades available based on 3D and 4D configurations.

Advantages of BZNCarbon C/C Screws & Studs

Ultra-High Temperature Stability: Performance sustained beyond 2000°C
Minimal Thermal Expansion: Retains structural integrity during thermal cycling
High Strength & Lightweight: Stronger than graphite, lighter than metal
Electrically Conductive: Ideal for electro-thermal assemblies
Non-Magnetic & Corrosion Resistant: Reliable in harsh chemical or magnetic environments
Low Outgassing: Suitable for vacuum and space applications