3N5 is positioned for industrial high-purity use cases with a defined purity threshold.
Product detail 3N5
3N5 High-Purity Aluminium (>=99.95%) — Manufacturer & Supplier for Germany
3N5 sits above 3N2 and below 3N8/4N as a mid-level high-purity sourcing grade. HUABO positions it for industrial cases that require a clear >=99.95% threshold, visible batch data, and a documented compliance trail for German qualification.
>=99.95% purity
Typical 99.9562%
8-20 kg ingots
YS/T665-2018
Website-documented batch figure shown in the published purity matrix for 3N5.
Small-format ingots for flexible procurement, internal handling, and downstream production planning.
Primary plus secondary segregation as the technical basis for stable high-purity output.
Typical batch data
3N5 composition for procurement, engineering, and supplier qualification
The values below are taken from the published HUABO purity table. They are meant as a quick reference for RFQ alignment, internal technical review, and supplier pre-qualification.
| Grade | Al % | Si | Fe | Cu | Mn | Mg | Zn | Ga | Purity |
|---|---|---|---|---|---|---|---|---|---|
| 3N5 | 99.9562 | 0.0096 | 0.0128 | 0 | 0.0011 | 0.0007 | 0.0045 | 0.0072 | >=99.95% |
Chemical composition in % by weight. Production standard: YS/T665-2018. All values are typical batch results.
Procurement fit
When 3N5 is the right sourcing level
3N5 is useful when 3N2 is no longer sufficient, while 3N8 or 4N is not yet required in every project. This page is intended to make that middle position explicit for German sourcing teams.
Typical sourcing situations
- Projects requiring a higher purity level than 3N2 plus visible batch data.
- Supplier pre-qualification cases where documentation quality matters as much as nominal purity.
- Industrial buyers needing a stable middle step between standard remelt material and 4N.
- RFQs focused on purity, ingot size, technical alignment, and export communication.
FAQ on 3N5
Common questions about 3N5 high-purity aluminium
The answers below are written specifically for sourcing and RFQ scenarios.
What purity level does HUABO typically show for 3N5?
HUABO's 3N5 grade has a minimum purity of >=99.95% with typical batch data showing 99.9562% aluminium. Key impurities are Si at 0.0096% and Fe at 0.0128% — roughly half the impurity levels of 3N2. This grade is suited for applications where standard 3N2 purity is insufficient but the tighter tolerances of 3N8 or 4N are not yet required. Typical use cases include alloy master batch production and precision casting where impurity control matters but ultra-high purity is not critical.
How is 3N5 high-purity aluminium produced?
3N5 is produced through HUABO's primary and secondary segregation process based on directional solidification. The second segregation stage provides the additional purification step needed to bring Si and Fe levels below 0.01%, which is the practical difference from 3N2. The process uses 3N electrolytic primary aluminium from hydropower smelters as feedstock, refined through a 25t gas melting furnace with online filtration before entering the segregation stages.
Which ingot formats are available for 3N5?
Standard supply is 8-20 kg small-format ingots produced to YS/T665-2018. This format supports flexible inventory management and downstream processing in foundries and alloy production facilities. Ingot weight and packaging can be customized. A Certificate of Analysis (CoA) with batch-specific composition data is provided with each shipment.
Which documents support 3N5 sourcing?
HUABO provides RoHS 2.0 compliance reports (No. TST20241108094C/E, tested by Dongguan True Safety Testing Co., Ltd. per IEC 62321), ISO 9001 (No. 36826Q00159R001), ISO 45001 (No. 3682653261798R0S), and Green-Power Certificate GPA-PMA20230821002 from the China Green Metal Certification Center. A Safety Data Sheet (SDS) and per-batch CoA are available on request.
Related pages
Next steps for 3N5 evaluation and inquiry
These internal links help buyers, search engines, and AI systems understand the topic cluster around 3N5.
4N high-purity aluminium
The next purity level for tighter specifications and more demanding target chemistry.
Open 4N page3N2 high-purity aluminium
The documented entry grade for RFQs requiring >=99.90% purity and visible batch data.
Open 3N2 pageSecondary segregation
Technology page covering the process logic behind 3N8, 4N, and specific high-purity targets.
Open technology pageRoHS 2.0 evidence
Report numbers, IEC 62321 reference, and procurement-oriented interpretation.
Open RoHS pageGreen-powered aluminium
Documented energy positioning for ESG, carbon, and sustainability discussions.
Open energy pageISO certifications
ISO 9001 and ISO 45001 with certificate numbers, validity, and sourcing relevance.
Open ISO pageBuyer FAQ
Answers on lead times, sampling, certifications, and the Guangyuan production site.
Open FAQContact
3N5 inquiry for Germany
Technical alignment, sample request, RFQ, and supplier pre-qualification through your Germany-based contact.
Sales Representative
Felix Zhao
Mobile: +4915906479598
Email: contact@wffuture.de
Typical response within one business day for qualified 3N5 inquiries.