Boron Carbide (B₄C) is one of the hardest known ceramic materials, offering ultra-high wear resistance, low density, and outstanding chemical stability. It is ideal for CNC-machined parts in defense, nuclear shielding, abrasive environments, and lightweight ballistic applications where material performance under extreme conditions is critical.
Boron Carbide is a non-oxide ceramic composed of boron and carbon atoms in a rhombohedral crystal structure. It is best known for its extraordinary hardness, second only to diamond and cubic boron nitride, while remaining chemically inert and lightweight—making it a favorite in high-performance, weight-sensitive designs.
We offer CNC machining for high-purity sintered Boron Carbide (B₄C).
~30 GPa (Vickers Hardness)
~2.5 g/cm³
~30 – 60 W/m·K
~10⁵ – 10⁶ Ω·cm
Exceptional
Excellent
~400 MPa
>3,000 MPa
Need a specific Silicon Carbide composition? We offer custom material options tailored to your project requirements. Contact us to discuss your needs.
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Challenges & Solutions
Due to its extreme hardness and brittleness, B₄C machining is limited to diamond grinding and must avoid thermal or mechanical shock. We employ:
Tolerances Achievable for Machined SiC
B₄C is chosen when hardness, light weight, and chemical resilience are mission-critical.
Industries Served:
To meet strict industry standards, we offer advanced surface treatments for B₄C parts:
Ra < 0.05 µm for sealing faces.
Prevents edge cracking in thin or sharp parts.
Non-contact part identification.
We prioritize operational efficiency to reduce costs and expedite delivery.
Our collaboration with diverse partners, each with unique machinery and expertise, enables us to overcome complex manufacturing challenges.
Backed by 100+ carefully vetted, closely partnered experts, we fulfill your on-demand manufacturing needs at scale.
Every part we ship is meticulously inspected in our in-house lab to ensure it meets consistent design and quality standards.
Alumina (Al₂O₃) is a durable ceramic used for high-strength, high-temperature parts in precision industries.
High fracture toughness and wear resistance.
Excellent thermal conductivity and electrical insulation.
Used for optical and semiconductor applications.
Essential for semiconductor wafer processing.
Looking for more ceramic machining options? Check out our Alumina (Al₂O₃) CNC Machining services.
Looking for high-precision Silicon Carbide (SiC) machining? InstaVoxel delivers expert CNC machining, fast lead times, and superior quality. Contact us today to discuss your project.
