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Aluminium recycling and alloy control

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Sorting and chemistry control remain essential when scrap returns to the material supply chain.

Original process or selection outline for aluminium recycling and alloy control
Original overview diagram · actual processing and acceptance depend on the specified material and application

Recover and sort

Collected aluminium scrap is sorted before remelting. Sorting supports a useful feedstock stream; it does not by itself certify an alloy designation. Coatings, mixed alloys and contamination require process-specific handling.

Return to a specified material

Recycled metal can be cast into new ingots or billets, with alloy additions made to reach the target specification. The output must be tested against the intended composition and product requirements.

Compare environmental evidence carefully

Energy and emissions claims depend on the production route and accounting boundary. Use a relevant environmental declaration rather than assigning one universal footprint to every aluminium product.

Procurement questions

Request the alloy certificate, declared recycled-content method and any applicable environmental declaration. Trace the claim to the actual product rather than a company-wide marketing statement.

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Sources and verification

Selected facts checked 14 October 2026. Source data is reference information, not certification of supplied material.

Follow the stream through sorting and recovery

The International Aluminium Institute distinguishes production scrap from post-consumer feedstock and describes sorting, pretreatment, melting and composition adjustment as connected decisions. Dross and salt-containing residues have their own recovery and storage considerations. Keep recycled-content information separate from final chemistry and mechanical acceptance: the feedstock story does not replace evidence for the delivered alloy condition.

Source: alustory.international-aluminium.org, alustory.international-aluminium.org, international-aluminium.org