Custom Kovar Parts – Precision CNC Machining for High-Reliability Applications
KELTRYN delivers precision-machined Kovar and Fe-Ni-Co alloy components for hermetic packaging, semiconductor optics, and mission-critical electronics. From prototype to production, we provide engineering support, material traceability, and consistent quality.
Precision CNC Machining Capabilities
From tight-tolerance turning and milling to multi-axis operations, KELTRYN manages the unique challenges of Kovar machining — controlling heat, work hardening, burrs, thin-wall deformation, and sealing features.
CNC Turning & Milling
High-precision multi-axis turning and milling for complex Kovar geometries, with strict control of tolerances and surface finishes.
Prototype to Low-Volume Production
Flexible runs from single prototypes to repeatable small batches, with fast turnaround and DFM feedback to optimize your design.
Material Traceability & Certification
Full lot traceability on Kovar (Fe-Ni-Co alloy), with material certifications and inspection reports for auditable quality.
Industries We Serve
KELTRYN supports engineering teams across high-reliability sectors where Kovar components are essential for hermetic sealing, thermal stability, and long-term performance.
Hermetic Electronic Packaging
Semiconductor & Optoelectronics
Laser & Photonics Systems
Aerospace & Defense
Medical Devices & Diagnostics
Vacuum Systems & Scientific Instruments
Sensor, RF & Microwave
Power Electronics & Glass-to-Metal Sealing
Why Choose KELTRYN for Custom Kovar Parts?
We understand the unique demands of Kovar machining. Our processes are built to control heat, prevent burrs, and maintain sealing surfaces — delivering components that meet rigorous hermetic and mechanical requirements.
- Engineering Support – DFM feedback, material selection guidance, and manufacturing advice from prototype to production.
- Material Traceability – Full lot traceability on Kovar and Fe-Ni-Co alloys with certification included.
- Inspection Support – Dimensional reports, CMM measurements, and visual inspection for critical features.
- Consistent Quality – Stable processes, skilled machinists, and rigorous quality checks ensure repeatability batch after batch.
Key Components We Machine
- Custom Kovar Housings & Lids
- Sealing Rings & Flanges
- Frames & Complex Precision Components
- Caps & Thin-Wall Parts
Submit your drawing for a quick feasibility review and quote.
Submit Your Drawing for RFQFrequently Asked Questions
Answers to common questions about our custom Kovar parts machining services.
What is Kovar and why is it used for hermetic packaging?
Kovar (Fe-Ni-Co alloy) has a thermal expansion coefficient closely matching borosilicate glass and ceramics, making it ideal for glass-to-metal and ceramic-to-metal hermetic seals in electronic packages.
Can you machine complex thin-wall Kovar components?
Yes. Our CNC machining capabilities include fixturing and toolpath strategies specifically designed to minimize distortion and control tolerances on thin-wall and delicate Kovar parts.
What file formats do you accept for RFQ?
We accept STEP, IGES, DXF, DWG, and PDF drawings. For complex parts, 3D models help us provide the best manufacturability feedback.
What inspection reports can you provide with each order?
Standard reports include dimensional inspection sheets, material certification with lot traceability, and visual inspection. Custom inspection plans are available on request.
What is your typical lead time for prototypes and production runs?
Prototype lead times are typically 2–4 weeks depending on complexity. Production runs vary based on quantity and schedule; we work with you to meet your delivery needs.
Get Started with Your Custom Kovar Parts Project
Submit your drawing or describe your requirements. Our engineering team will review and provide a competitive quote with DFM feedback.
RFQ Support
Send Your Kovar Machining RFQ
Share drawings, CAD files, material requirements, quantities, tolerances, finishing needs, inspection requirements, and your target timeline. Our team will review the details and respond by email.
Helpful RFQ details
- 2D drawings or 3D CAD files
- Material: Kovar / ASTM F15 / Fe-Ni-Co alloy
- Quantity, tolerance, finish, inspection needs
- Application and purchasing timeline
Direct email: info@kovarmachining.com