The Ultimate Standard in Purity: Aluminum 5N (99.999%)
Engineered for the most demanding semiconductor, vacuum, and aerospace applications where even a single part-per-million matters.
The 5N Difference: Beyond Industrial Limits
When your project requires Ultra-High Purity (UHP), standard A7 or A8 grades aren’t enough. Our 5N Aluminum is refined through advanced electrolytic or fractional crystallization processes to eliminate trace metallic interference.
Why 99.999%?
Zero Interference: Minimal trace elements ensure predictable electrical behavior in semiconductor doping and thin-film deposition.
Exceptional Softness & Ductility: Ideal for specialized gaskets and vacuum seals.
Superior Reflectivity: Highest possible optical performance for precision mirrors and coatings.
Technical Specifications & Trace Element Control
In the world of 5N, we don’t measure in percentages; we measure in ppm (parts per million).
Chemical Composition & Impurity Analysis
| Element | Max Content (ppm) |
| Silicon (Si) | $< 2.0$ |
| Iron (Fe) | $< 2.0$ |
| Copper (Cu) | $< 1.0$ |
| Magnesium (Mg) | $< 1.0$ |
| Total Impurities | $< 10.0$ |
Aluminum Purity & Grade Comparison
| Grade | Purity Level | Max Impurities | Industry Names | Typical Form Factors | Best For… |
| A7 | $\ge 99.70\%$ | $< 3,000 \text{ ppm}$ | P1020, Standard | Ingots, Billets, T-Bars | Construction & Electrical Grid |
| A8 / A85 | $\ge 99.80\%$ | $< 2,000 \text{ ppm}$ | High Purity | Ingots, Coils, Foils | Chemical & Food Packaging |
| 4N | $\ge 99.99\%$ | $< 100 \text{ ppm}$ | Ultra-High Purity | Pellets, Slugs, Cut Wire | Aerospace & High-End Alloys |
| 5N | $\ge 99.999\%$ | $< 10 \text{ ppm}$ | Super Purity | Sputtering Targets, Crystals | Semiconductors & Quantum Tech |
Best Selling Material
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