4N–6N5 High Purity Aluminum for
High Purity Aluminum Distribution is the largest US-based specialty supplier of high purity aluminum, serving 1,000+ advanced manufacturing, engineering, and research companies and institutions throughout the world. We specialize in purities ranging from 4N to 6N5, offering a comprehensive selection of forms including pellets, plates, blocks, coils, rods, sheets, and wire.
High Purity Aluminum Products
Shop by form. Each category page shows the full range of purities, sizes, and specifications available.
Trusted across research and industry
From university labs to semiconductor fabs and aerospace programs, customers rely on HPA for consistent purity, documentation, and fast delivery.
Research Laboratories
Universities, national labs and government facilities conducting advanced materials research.
Semiconductor and Electronics
Chip fabs, display manufacturers and solar cell producers using PVD/CVD processes.
Advanced Manufacturing
Sputtering target manufacturers, custom coaters and precision deposition houses.
Aerospace and Space Systems
Precision aerospace and space programs requiring certified, traceable high specification aluminum.
What our customers say
“HPA has become a reliable vendor for high purity aluminum foil product. It is received in good condition, complete with certificates and all needed documentation. They are easy to work with and responsive. I would recommend reaching out to HPA for your needs.”
“Very reliable source for high-purity metals for our quantum research, fast response times, flexible customization, competitive pricing, and consistent delivery of exactly what’s on the spec sheet. Great customer service too.”
“HPA has been a great supplier for many years now. They continue to meet critical need dates and provide a high quality product.”
Technical Resource Hub
Guides on purity grades, forms, and applications, each linking to the products it describes.
U.S. Semiconductor Manufacturing Is Expanding. Here's Why High-Purity Aluminum Matters
U.S. semiconductor manufacturers are investing hundreds of billions of dollars in domestic fabrication capacity. Driven by surging demand for chips...
Read article →High Purity Aluminum for Superconducting Thin Films, Josephson Junctions, and Quantum Devices
High purity aluminum plays an important role in some of the most demanding thin-film applications in modern research and advanced...
Read article →The Future of High Purity Aluminum in Advanced Manufacturing
Explore the future of high purity aluminum in advanced manufacturing, its applications, challenges, and prospects.
Read article →The questions buyers ask before they order
Clear answers on grades, forms, and ordering, from the team that supplies them.
What is high purity aluminum used for?
High purity aluminum (4N to 6N5) is used for sputtering targets, evaporation and thin-film coating, semiconductor fabrication, superconducting cavities and quantum computing qubits. HPA supplies these grades to electronics firms, universities and government labs worldwide.
Where can I buy aluminum sputtering targets?
You can buy aluminum sputtering targets directly from HPA in disk and plate form, 4N to 6N purity. Stock is held in Boca Raton and ships in 1 to 2 days within the USA and 2 to 5 days overseas.
What purity grades does HPA supply?
HPA stocks 4N, 4N6, 5N, 5N5, 6N and 6N5 MBE grade aluminum, plus AlSi, AlCu, AlNi, AlMg and AlNd alloys, and high purity copper, nickel and titanium.
How do I choose between 4N, 5N and 6N?
Choose 4N for general research and coating, 5N for semiconductor and superconducting cavity work, and 6N or 6N5 for quantum and MBE applications. Higher purity lowers the trace metals that affect film and device performance.