Aluminum (Al) Wire – High-Purity Instrumentation-Grade Component
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Origin Classification | Domestic (China) |
| Model | Al Wire |
| Purity | 99.9% (3N) |
| Diameter | 2–3 mm |
| Minimum Order Quantity | 10 meters |
| Packaging | Sealed in 100-grade cleanroom bags with aluminum foil wrap, processed in ISO Class 5 (1000-grade) cleanroom environment |
Overview
Aluminum (Al) wire is a fundamental instrumentation-grade component widely employed in vacuum deposition systems, resistance heating elements, electrical interconnects, and sensor fabrication within research laboratories and semiconductor pilot lines. This high-purity Al wire is engineered for applications demanding low outgassing, minimal metallic contamination, and consistent electrical resistivity. Fabricated from 99.9% pure (3N grade) aluminum, the material complies with stringent elemental impurity thresholds defined in ASTM B280 and GB/T 1196 for primary aluminum products. Its uniform cylindrical geometry—maintained within ±0.05 mm tolerance across the 2–3 mm diameter range—ensures reproducible thermal load distribution and predictable sputtering yield during physical vapor deposition (PVD) processes.
Key Features
- High-purity aluminum (3N, 99.9% minimum), certified with trace metal analysis reports available upon request
- Precision-drawn round cross-section with tight dimensional control (2.0–3.0 mm nominal diameter)
- Low oxygen and hydrogen content, optimized for ultra-high vacuum (UHV) compatibility (≤1×10⁻⁹ mbar base pressure compatible)
- Cleanroom-handled and double-bagged: processed in ISO Class 5 (1000-grade) cleanroom; final packaging in ISO Class 5–compatible 100-grade cleanroom bags with inert gas purging
- Surface oxide layer naturally formed but stable and non-flaking—suitable for controlled oxidation studies or as sacrificial anode material in electrochemical setups
- Supplied in straightened, cut-to-length segments (standard 10-meter minimum order) with mechanical properties conforming to ASTM B49 for aluminum conductor wire
Sample Compatibility & Compliance
This Al wire is routinely integrated into instrumentation platforms including thermal evaporation sources (e.g., K.J. Lesker E-beam crucibles), resistive heater coils for furnace liners, and reference electrodes in corrosion testing cells. It meets baseline material qualification requirements for GLP-compliant thin-film process development and satisfies pre-qualification criteria for ISO/IEC 17025-accredited calibration labs conducting metrological verification of thermal conductivity standards. While not individually certified to USP or FDA 21 CFR Part 11, its documented purity, handling protocol, and lot traceability support audit-ready documentation packages required under GMP-aligned R&D workflows.
Software & Data Management
As a passive instrumentation component, this Al wire does not incorporate embedded electronics, firmware, or software interfaces. However, full traceability is maintained through lot-specific Certificates of Analysis (CoA), which include ICP-MS-tested impurity profiles (Fe, Si, Cu, Mg, Zn, Na ≤ 10 ppm each), tensile strength data (≥60 MPa), and elongation-at-break metrics (≥15%). CoAs are digitally archived and retrievable via secure client portal upon order confirmation. All packaging labels carry QR-coded lot identifiers linked to internal quality management system (QMS) records compliant with ISO 9001:2015 Clause 8.5.2.
Applications
- Thermal evaporation source material for Al thin-film deposition on optical substrates, OLED anodes, and microelectromechanical systems (MEMS) encapsulation layers
- Resistive heating element core in custom-built tube furnaces operating up to 660°C (Al melting point)
- Reference electrode construction in aqueous and non-aqueous electrochemical impedance spectroscopy (EIS) cells
- Calibration standard for X-ray fluorescence (XRF) spectrometer intensity response validation
- Substrate for in-situ TEM sample preparation where native oxide passivation must be preserved
- Component in cryogenic current leads requiring high electrical conductivity at 4 K (resistivity ~0.035 µΩ·m at 20 K)
FAQ
Is this Al wire suitable for electron-beam evaporation?
Yes—its high purity and low volatile residue content minimize arc instability and particle generation in e-beam sources.
Can I request metallurgical certification beyond 3N purity?
Custom orders with 4N (99.99%) or 5N (99.999%) purity are available subject to lead time and MOQ adjustment; contact technical sales for feasibility assessment.
What is the typical surface roughness (Ra) of the as-supplied wire?
Measured Ra is 0.4–0.8 µm per ISO 4287; optional electropolished finish (Ra ≤0.1 µm) can be specified at order stage.
Do you provide spooled configurations for automated feed systems?
Yes—spooling onto stainless-steel reels (100–500 m per reel) is supported with tension-controlled winding and vacuum-sealed secondary packaging.
How is dimensional stability verified before shipment?
Each production lot undergoes laser micrometer inspection at three axial positions per meter; full inspection reports accompany shipping documentation.
