Published typical HUABO batch value: 99.9226%.
Buyer guide
Buying high-purity aluminium: choose more than an N-grade
A reviewable specification combines minimum aluminium content, maximum limits for critical elements, form, total quantity, test documentation, and application. This turns “need 4N” into a technically actionable request.
Published typical HUABO batch value: 99.9562%.
Published typical HUABO batch value: 99.9847%.
Published typical HUABO batch value: 99.9936%.
01
Separate total purity from element limits
An N-grade describes minimum aluminium content. It does not automatically show whether one element such as Si, Fe, Cu, Zn, or Ga is low enough for the buyer.
State every acceptance-critical maximum alongside minimum aluminium content, including units and any required test or reporting limit. Published HUABO values are typical batch data, not a purchase specification.
02
Define form, unit weight, and total quantity
The standard basis is individual 8–20 kg ingots to YS/T665-2018. That range is the weight per ingot, not a minimum order quantity.
State total quantity, piece count, dimensions, tolerances, and packaging separately. Small quantities, research, pilot demand, and custom forms are reviewed by project.
03
Define documents and project stage
Identify whether the project is research, prototype, qualification, pilot, or recurring production. This places the trial quantity and possible follow-on demand in context.
Specify which elements the batch Certificate of Analysis should report. Price, MOQ, availability, and lead time are confirmed only after specification review.
04
When to ask for a 4N5 review
4N5 up to 99.995% is not a published standard grade. A buyer can submit target chemistry, application, total quantity, and test scope for feasibility review.
Higher nominal total purity is not automatically the technically or commercially correct choice. Actual element limits and project acceptance criteria remain decisive.
FAQ
Short answers for procurement and engineering
Is “4N aluminium” enough for a quotation?
No. Add critical element limits, form, total quantity, application, documents, destination, and target date.
Is 8–20 kg the minimum order quantity?
No. It is the weight of an individual standard ingot. MOQ and total quantity are confirmed by project.
Are typical values guaranteed limits?
No. Published typical batch data provides context; the agreed purchase specification and actual batch CoA govern acceptance.
RFQ
Send a reviewable inquiry
State grade or target chemistry, form, total quantity, application, documents, destination, and timing. Commercial terms are confirmed after review.