Aluminium scrap 6063

Buyers must prioritize the purity and composition of the scrap. Aluminium 6063 is an architectural alloy, so the scrap should ideally be clean, uncoated, and free of attachments like iron, plastics, or rubber. Ensure the Aluminium content is approximately 98% or higher, with specific magnesium and silicon ratios consistent with the 6063 grade. Request a Spectrometer Analysis Report from the supplier to verify the chemical breakdown before shipment.

Sourcing metal scrap requires strict adherence to CCIC (China Certification & Inspection Group) standards if shipping to or through China, or similar pre-shipment inspections for other regions. Ensure the supplier provides a Certificate of Origin and follows Basel Convention guidelines regarding the transboundary movement of hazardous waste (though 6063 scrap is generally non-hazardous, documentation is vital). Verify that the supplier holds an ISO 14001 certification for environmental management.

The scrap is typically traded in three forms: Extrusions (sections/profiles), Briquettes (compressed blocks), or Loose Tense/Tabor. For maximum smelting efficiency, 6063 Extrusions (often called '6063 Press') are preferred as they offer the highest recovery rate. Ensure the scrap is free of 'painted' or 'anodized' surfaces unless your smelting process is equipped to handle coatings, as these can affect the final alloy quality.

Pricing is almost universally indexed to the LME (London Metal Exchange) Aluminium cash price. Suppliers typically quote a percentage of the LME price (e.g., 90% - 95% of LME) or a fixed discount per ton. Be wary of prices significantly below the market average, as this often indicates low recovery yields or potential fraud. Always factor in the current exchange rate and shipping freight costs which fluctuate daily.

The most significant risk is material substitution or contamination, where the top layer of a container looks correct but the bottom contains heavy stones or inferior metals. To mitigate this, always mandate a third-party inspection (such as SGS or Intertek) at the loading port. Additionally, use Secure Payment Terms like a Letter of Credit (L/C) or trade assurance services provided by platforms like Made-in-China.com to ensure funds are only released upon verification of shipping documents.

Focus negotiations on the Recovery Yield Guarantee. A professional supplier should guarantee a yield of at least 90-95%. Include a clause in the contract that allows for price adjustments if the impurity level exceeds the agreed percentage upon arrival and independent testing. Requesting a video of the loading process and photos of the scales during weighing can also deter fraudulent behavior.

Scrap is heavy and dense; therefore, ensure the supplier uses 20ft heavy-duty containers to maximize weight capacity (usually up to 25-28 tons per container). Confirm the Incoterms clearly—CIF (Cost, Insurance, and Freight) is common, but FOB (Free On Board) gives the buyer more control over the shipping timeline and costs. Ensure the cargo is properly insured against loss or theft during transit, as metal scrap is a high-value commodity.