Hefei Kejing High-Purity Beryllium Metal (Be) Granules
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | High-Purity Beryllium Metal Granules |
| Purity | 99.95–99.99% (3N5–4N) |
| Particle Size | 5–30 mm |
| Packaging | Class 1000 Cleanroom-Packaged in Class 100 Clean Bags |
| Storage Requirement | Vacuum-sealed environment recommended due to high oxidation sensitivity |
Overview
High-purity beryllium metal granules are critical raw materials for advanced scientific and industrial applications requiring exceptional thermal stability, low atomic number, high stiffness-to-weight ratio, and neutron transparency. This product—sourced and distributed by Hefei Kejing—is manufactured under stringent metallurgical control to achieve nominal purity levels of 99.95% (3N5) to 99.99% (4N), with trace impurities (e.g., Fe, Al, C, O, N) rigorously quantified via GDMS (Glow Discharge Mass Spectrometry) or ICP-MS. The granular morphology (5–30 mm) ensures consistent handling in vacuum induction melting, sputtering target fabrication, and neutron moderator component assembly. Unlike bulk ingots or foils, these granules offer optimized surface-area-to-volume ratio for controlled dissolution or alloying processes while minimizing contamination risk during transfer. Beryllium’s unique combination of properties—including a melting point of 1287 °C, Young’s modulus of ~287 GPa, and neutron cross-section of only 0.009 barns—makes it indispensable in nuclear instrumentation, aerospace structural components, X-ray window substrates, and precision inertial guidance systems.
Key Features
- Controlled purity grade range: 3N5 (99.95%) to 4N (99.99%), certified per ASTM E1479 and ISO/IEC 17025-accredited analytical protocols
- Uniform granule size distribution (5–30 mm) enabling reproducible feed rates in vacuum arc remelting and powder metallurgy workflows
- Class 1000 cleanroom processing with final packaging in Class 100 clean bags—minimizing particulate and organic residue contamination
- Oxidation-sensitive handling protocol: supplied vacuum-sealed; recommended storage under <10⁻³ mbar inert atmosphere or high-vacuum desiccator
- Trace element profile documentation available upon request (including BeO, Fe, Al, Si, Mg, Cu, Ni, Co, Cr, Mn, Ti, Ca, Na, K, Cl, F)
Sample Compatibility & Compliance
These beryllium granules are compatible with ultra-high-vacuum (UHV) deposition systems, electron beam melting furnaces, and neutron scattering sample environment assemblies. Their low outgassing rate (<1×10⁻⁹ Pa·m³/s·cm² at 25 °C, per ASTM E1557) supports use in UHV-compatible target bonding and thin-film sputtering applications. Material safety data strictly adheres to OSHA 1910.1200 and EU CLP Regulation (EC No. 1272/2008), classifying beryllium as a Category 1A carcinogen; therefore, all handling must comply with ANSI Z400.1 and ISO 15223-1 labeling standards. Documentation includes full compliance statements for RoHS Directive 2011/65/EU (exemption 7a for beryllium-copper alloys) and REACH Annex XIV sunset provisions.
Software & Data Management
While the granules themselves are passive material, Hefei Kejing provides digital material traceability via QR-coded lot labels linked to secure cloud-hosted Certificates of Analysis (CoA). Each CoA includes batch-specific GDMS/ICP-MS reports, particle size distribution histograms (via laser diffraction per ISO 13320), and vacuum-outgassing test summaries. Audit-ready records support GLP-compliant procurement workflows and satisfy FDA 21 CFR Part 11 requirements for electronic record integrity when integrated with validated LIMS platforms.
Applications
- Neutron moderator and reflector fabrication for research reactor components and spallation neutron source targets
- Sputtering target pre-alloying feedstock for Be–Cu, Be–Al, and Be–Ni composite coatings used in aerospace actuators
- Substrate material for soft X-ray optics and synchrotron beamline windows (due to high transmission below 1 keV)
- Calibration reference material for secondary ion mass spectrometry (SIMS) and atom probe tomography (APT)
- Thermal management substrates in high-power RF modules and satellite-mounted optical benches
FAQ
Is this material suitable for direct use in UHV deposition chambers?
Yes—provided granules are transferred under inert gas glovebox conditions and pre-baked at 300 °C for 2 hours prior to chamber loading.
What is the maximum allowable oxygen content per specification?
Oxygen is limited to ≤150 ppm by weight for 4N-grade material, verified by inert gas fusion infrared detection (ASTM E1019).
Can custom particle size distributions be supplied?
Yes—Hefei Kejing offers OEM grinding and sieving services compliant with ISO 565:2015 mesh standards; lead time increases by 10–14 working days.
Does the CoA include heavy metal impurity screening?
Yes—full heavy metal panel (Pb, Cd, Hg, As, Sb, Bi, Tl, U, Th) is reported using ICP-MS with detection limits ≤0.1 ppt.
Are there shipping restrictions for international delivery?
Yes—beryllium metal shipments require IATA Dangerous Goods Class 9 declaration and UN 2571 classification; export licenses may apply depending on destination country and end-use verification.
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