Welcome to your trusted source for high purity Niobium Granule with exceptional quality specifications. Our niobium granules deliver 99.95% purity levels, making them perfect for semiconductor applications and evaporation coating processes. With metallic impurities kept below 80 ppm, you get ultra-clean materials that meet the most demanding industry standards. These premium granules feature a narrow particle size distribution of 3-12 mm, ensuring consistent performance in your critical applications.
At Shaanxi Chuanghui Daye Metal Material Co., Ltd., we understand your need for reliable, high-performance materials. Our high purity Niobium Granule products are manufactured using advanced electron beam vacuum melting technology, followed by precision forging and polishing processes.
| Specification | Standard Sizes | Custom Options |
|---|---|---|
| Rod Diameters | 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 22mm | Available on request |
| Granule Sizes | 6×6mm, 3×3mm | Custom sizing possible |
| Tolerance | ±0.1mm | Precision tolerance available |
| Parameter | Specification | Application Benefit |
|---|---|---|
| Purity | ≥99.95% | Semiconductor & coating grade |
| Metallic Impurities | ≤80 ppm | Ultra-clean processing |
| Particle Size | 3-12 mm | Narrow distribution |
| O Content | ≤120 ppm | Superconducting quality |
| H Content | ≤10 ppm | Prevents porosity |
| N Content | ≤20 ppm | Enhanced conductivity |
| C Content | ≤30 ppm | Structural stability |
| RRR Value | ≥40 | High current transmission |
Available Grades and Materials
Our niobium granules comply with international standards including ASTM B392 and ASTM B655/B655M. We offer various grades to meet your specific requirements:
Our production follows a strict quality-controlled process:



Your high purity Niobium Granule serves as premium evaporation source material for optical coatings and electronic component surface treatments.
We maintain rigorous quality control throughout production. Each batch undergoes comprehensive testing for chemical composition, physical properties, and dimensional accuracy. Our quality management system ensures consistent product performance and reliability.
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Understanding that your applications may require specific specifications, we offer comprehensive customization services. Whether you need particular dimensions, special purity levels, or unique packaging solutions, our experienced team works closely with you to deliver exactly what you need.
Your high purity Niobium Granule arrives safely packaged in moisture-resistant containers to maintain product integrity. We use appropriate inert atmosphere packaging for sensitive applications and ensure secure shipping to over 50 countries worldwide.
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Located in Baoji, China's "Titanium Capital," we bring over 30 years of rare metal industry experience to serve you. Our founder's extensive expertise ensures you receive products that meet the highest standards. We focus on competitive pricing, on-time delivery, and customer-focused service built on trust and reliability.

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Q: What applications work best with your niobium granules?
A: Our materials excel in evaporation coating, semiconductor processing, and specialized alloy production.
Q: Can you provide certificates of analysis?
A: Yes, we provide comprehensive COAs with every shipment showing all chemical and physical properties.
Q: Do you offer sample quantities?
A: Absolutely! We're happy to provide samples so you can evaluate our material quality.
Q: What's your typical lead time?
A: Standard products ship within 2-3 weeks, with custom specifications requiring additional time.
Ready to experience the quality difference of our premium niobium materials? Contact our technical team today to discuss your specific requirements. We're here to help you find the perfect solution for your applications.
Email: info@chdymetal.com
Let us partner with you for reliable, high-quality materials that drive your success forward.

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