Mechanical-Grade Boron Nitride Fiber

Mechanical-Grade Boron Nitride Fiber is engineered for demanding environments that require high strength, insulation, and thermal stability. It performs reliably up to 1800 °C in inert atmospheres, with a low dielectric constant (≤ 4.5) and excellent insulation, featuring a breakdown strength above 6 kV/mm. The fiber combines light weight (1.8 ± 0.2 g/cm³) with resistance to chemical corrosion, oxidation, and electrical degradation, making it suitable for mechanical reinforcement and high-temperature insulation uses. Heeger Materials provides high-quality Boron Nitride Fiber with custom options.

Mechanical-Grade Boron Nitride Fiber Properties 

Property	Specification
Maximum Service Temperature (Inert Atmosphere)	~1800 ℃
Dielectric Constant	≤ 4.5
Dielectric Loss	≤ 5 × 10⁻³
Electrical Conductivity (S/cm)	10⁻⁹ ~ 10⁻¹²
Breakdown Strength	≥ 6 kV/mm
Bulk Density (g/cm³)	1.8 ± 0.2
Chemical Stability	Excellent resistance to corrosion and oxidation

Mechanical-Grade Boron Nitride Fiber Specifications

Property	Specification
Fiber Length (m)	≥ 500
Fiber Diameter (μm)	12 ± 2
Linear Density (1.5K) (Tex)	270 ± 40
Bulk Density (g/cm³)	1.8 ± 0.2
Tensile Strength (MPa)	400–600  800–1000
Dielectric Constant (2–18 GHz, Room Temp)	≤ 4.5
Dielectric Loss (2–18 GHz, Room Temp)	≤ 5 × 10⁻³

Mechanical-Grade Boron Nitride Fiber Applications

• Aerospace Thermal Insulation: Used as a key material for high-temperature insulation components in aircraft and spacecraft.
• Microwave Dielectric Ceramics: Applied in the production of microwave dielectric ceramics due to their excellent dielectric stability.
• High-Temperature Structural Parts: Provide mechanical reinforcement and thermal protection in systems operating under extreme conditions.
• Electronic Insulation Materials: Used in high-voltage and high-frequency electrical insulation applications.
• Advanced Composite Reinforcement: Acts as a reinforcing fiber in composite materials requiring lightweight and high thermal stability.

Mechanical-Grade Boron Nitride Fiber Packing And Shipping

Mechanical-Grade Boron Nitride Fiber will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures the product arrives in perfect condition, maintaining its high-quality standards throughout delivery.

Where to Buy Mechanical-Grade Boron Nitride Fiber in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Boron Nitride (BN) products including Mechanical-grade Boron Nitride Fiber, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.