Agree individual element limits separately.
Aluminium ingots · Manufacturer in China · Germany-based contact
4N high-purity aluminium: 99.99% and typical batch data
HUABO offers 4N as a standard grade with at least 99.99 wt.% aluminium. The standard basis is individual 8–20 kg ingots to YS/T665-2018. Review the published typical values below and send your element limits, total quantity and document requirements for a project-specific quotation.
Product information: HUABO Advanced Aluminium · Updated 6 September 2026
Not a guarantee for a future batch.
Not the minimum order quantity.
Confirm price, MOQ, documents and timing.
Read the data, not only the purity label
4N composition in wt.% and ppm
The first numeric column reproduces the published typical HUABO table. The second converts the same figures: 1 wt.% = 10,000 ppm by mass. It is not an additional measurement.
| Element | Typical (wt.%) | Converted (ppm by mass) |
|---|---|---|
| Al | 99.9936 | 999,936 |
| Si | 0.0015 | 15 |
| Fe | 0.0011 | 11 |
| Cu | 0 | 0 |
| Mn | 0.0002 | 2 |
| Mg | 0.0002 | 2 |
| Zn | 0.0008 | 8 |
| Ga | 0.0014 | 14 |
Source: published HUABO product data. The web table does not state the analytical method, reporting limits or a verifiable batch identifier; it is not a confirmed complete mass balance. A displayed zero is not a promise of absence. Resolve these points against the actual CoA and your specification before acceptance.
Original HUABO product matrix · Review CoA and acceptance specification
Selection guide
4N compared with the other HUABO grades
4N is HUABO’s highest published standard grade. A target up to 4N5, or 99.995%, is reviewed by project only. Higher overall purity does not replace individual element limits.
| HUABO grade | Minimum Al (wt.%) | Calculated remainder ceiling (ppm by mass) | Typical Al value (wt.%) |
|---|---|---|---|
| 3N2 | ≥99.90 | 1,000 | 99.9226 |
| 3N5 | ≥99.95 | 500 | 99.9562 |
| 3N8 | ≥99.98 | 200 | 99.9847 |
| 4N | ≥99.99 | 100 | 99.9936 |
On small screens: scroll the table sideways.
Calculation: (100 − minimum Al in wt.%) × 10,000 = remainder in ppm by mass. This is a calculated ceiling from the purity statement, not a measured sum or a limit for an individual element. Grade labels and typical values refer to HUABO’s published range.
From data comparison to a quotation
What your 4N inquiry needs
Chemistry and testing
Minimum Al and critical element maxima; units, test method and reporting limit where required for acceptance.
Form and quantity
Standard ingots or a custom form for review; dimensions, tolerances, total quantity and requested unit weight stated separately.
Project and timing
Application, trial or production stage, destination country and target window. Small quantities and alternative forms are reviewed by project.
Documents and delivery scope
CoA scope, extra tests, packaging and delivery term with a named place. Price, MOQ and lead time remain open until confirmed.
FAQ
Questions about 4N aluminium
What does 4N mean at HUABO?
In HUABO’s range, 4N specifies at least 99.99 wt.% aluminium. The published typical Al value is 99.9936%. Acceptance depends on the agreed limits and the CoA for the actual delivery batch.
Is 8–20 kg the minimum order quantity?
No. 8–20 kg is the weight of an individual standard ingot. State total quantity and, where relevant, piece count separately. MOQ, availability and lead time are confirmed after RFQ review.
Does the published Cu value of 0 guarantee copper-free material?
No. The value 0 is reproduced from the typical website table. Without the test method, reporting limit and reporting convention it does not establish guaranteed absence. Agree any required Cu maximum and test basis in advance.
How do I obtain a 4N price?
Send minimum Al, critical element limits, form, total quantity, application, documents, destination and target date. HUABO does not publish a blanket price per kg; technical and commercial scope is reviewed before quotation.
Is 4N5 also a standard grade?
No. 4N5 up to 99.995% is a project target for feasibility review only, not a published standard grade or blanket availability commitment.
Continue the technical review
Germany-based contact
Discuss your 4N inquiry with Felix Zhao
The manufacturer is Guangyuan Huabo High Purity Aluminium Technology Co., Ltd. in Guangyuan, Sichuan, China. Felix Zhao is your Germany-based first contact; this does not imply stock held in Germany.