Nb

Niobium
Powder

High-purity niobium powder for superconducting applications, aerospace alloys, nuclear engineering, and advanced research programs. We supply pure niobium (99.95%+) and niobium alloy powders including Nb-1Zr and Nb-10Hf-1Ti compositions for high-temperature and radiation-resistant applications. Available in particle size distributions from 15–45µm for laser additive manufacturing to 45–150µm for press-and-sinter and PM-HIP processing. Niobium's superconducting properties at cryogenic temperatures make it essential for MRI systems, particle accelerators, and quantum computing components. All powders are American-produced, DFARS compliant, and certified under our AS9100D quality system.

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AS9100D Certified

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ISO 9001:2015

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US Manufacturing

Niobium Powder Applications

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Superconducting applications

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Aerospace structures

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Medical devices

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Additive manufacturing

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Particle accelerators

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High-performance alloys

Why Choose Metal Powder Supply

Tungsten powder metallurgy product for defense applications

US Production

Produced domestically and registered under ITAR. DFARS compliant for defense procurement. Full traceability from raw material through atomization, processing, and testing.

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Certified Network

AS9100D and ISO 9001:2015 certified. Meets aerospace material specifications. Tested for interstitial control, particle distribution, and flowability.

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Custom PSDs

Custom particle size distributions from <45 μm to +200 μm. Engineered for powder metallurgy, additive manufacturing, and conventional consolidation processes.

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Technical Support

Direct support from materials engineers. Alloy system guidance, purity requirements for superconducting applications, and consolidation recommendations.

Why Choose Our Niobium Powder

Tungsten powder metallurgy product for defense applications

Industry Leader

Niobium is essential across multiple high-performance industries. In superconducting magnets, Nb-Ti and Nb3Sn alloys enable MRI systems and particle accelerators—requiring ultra-low interstitial content for critical current density. In aerospace, niobium is the primary feedstock for C103 refractory alloy (Nb-10Hf-1Ti), used in rocket nozzles and high-temperature structures. Nuclear applications rely on zirconium-niobium alloys for reactor fuel cladding and structural components. Pure niobium serves specialty roles in microelectronics and chemical processing. Lower density than other refractories (8.57 g/cm³) makes niobium attractive for weight-critical aerospace designs.

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Quality Assured

Superconducting alloys demand exceptional purity. Interstitial elements—oxygen, nitrogen, hydrogen, carbon, and tantalum—directly degrade superconducting performance. We control these elements through atomization parameters, inert-atmosphere processing, and rigorous testing. Every lot receives chemical analysis (ICP, LECO), particle size distribution verification, and flow rate measurement. For superconductor feedstock, we offer certified oxygen and nitrogen levels to support critical current density targets. Testing reports include full elemental composition, particle morphology, and traceability to source material.

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Defense & Compliance Ready

Our materials team understands niobium consolidation, alloy design, and application-specific purity targets. We guide customers through powder selection—whether you're pressing C103 forgings, hot-isostatic-pressing (HIP) superconductor preforms, or casting specialty nuclear alloys. We work with your specifications, accommodate small and large orders, and maintain inventory to support delivery timelines. Contact us with your application and purity requirements.

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Niobium Powder Applications & Alloy Systems

Superconducting alloys remain the largest and most demanding application for high-purity niobium powder. Nb-Ti is the workhorse for MRI magnets, with critical currents reaching 200+ kA at 4.2 K in fields exceeding 8 T. Nb3Sn, more brittle but capable of higher fields, powers particle accelerators and research magnets. Both require sub-50 ppm oxygen and sub-20 ppm nitrogen to avoid critical current degradation. C103 refractory alloy (Nb-10Hf-1Ti) dominates rocket engine nozzle and hot-section aerospace applications, leveraging niobium’s high melting point and ductility—uncommon in other refractory systems. C103 consolidates from powder via vacuum-induction melting or HIP, then forges to final shape. Zirconium-niobium alloys protect fuel cladding in nuclear reactors, with niobium improving corrosion resistance and mechanical strength. Pure niobium finds niche roles in thin-film deposition, capacitor manufacturing, and specialty chemical equipment. We supply certified powder tailored to each system’s requirements, from superconductor-grade ultra-low interstitials to conventional aerospace feedstock.

Purity, Testing & Certification

Interstitial content is the critical quality metric for niobium powder. Oxygen, nitrogen, hydrogen, and carbon each degrade superconducting performance—and tantalum contamination signals impure source material. We control interstitials through argon-gas atomization, inert-atmosphere handling, and thermal processing. Every lot undergoes inductively coupled plasma mass spectrometry (ICP-MS) for trace elements, LECO analysis for oxygen, nitrogen, and hydrogen, and particle size analysis (laser diffraction or sieve cascade). We report particle morphology, flowability (Hall flow and apparent density), and provide certificates of analysis traceable to melt records. For superconductor applications, we guarantee specific purity grades: grade A (superconductor feedstock, <30 ppm O, <15 ppm N) and grade B (aerospace/conventional, <50 ppm O, <30 ppm N). Nuclear and specialty applications receive custom specifications. All testing is third-party validated and archived for 10+ years, supporting regulatory audits and material traceability requirements in ITAR and DFARS environments.

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Ready to discuss your niobium powder requirements? Our team provides fast RFQ turnaround, technical support, and competitive pricing on all grades and particle size distributions. Contact us today.

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