Aluminium, Grade Information
Clean Aluminium Sheet
Clean, uncontaminated aluminium sheet and extrusion scrap, from window frames, cladding, and architectural metalwork, one of the highest-paying aluminium grades.
Periodic Table Position
History & Interesting Facts
Aluminium sheet production at commercial scale only became possible after the Hall-Héroult electrolytic process was invented simultaneously in France and the USA in 1886. Within decades, rolling mills were producing flat-rolled aluminium sheet in a variety of alloys and tempers for the emerging aviation, packaging, and construction industries. The post-WWII building boom in Britain drove massive adoption of aluminium sheet and extruded sections for windows, curtain walling, shop fronts, and roofing. By the 1960s, virtually every new commercial building in the UK specified aluminium window frames, and millions of homes received aluminium windows during the 1970s and 1980s replacement boom. This installed base, now 40–50 years old and reaching end of replacement life again, represents an enormous clean aluminium scrap source. The UK aluminium rolling industry (Novelis at Latchford, Constellium at Rogerstone) is among the world's most sophisticated, built partly on recycled sheet feedstock.
Historical Uses
Clean aluminium sheet has been used in aviation (fuselage skin, wing panels, and structural components), packaging (food trays, pharmaceutical packaging, and capacitor foil), construction (window frames, curtain walling, roof sheeting, and cladding panels), and transport (vehicle body panels, shipping containers, and railcar bodies). WWII aircraft production consumed enormous quantities of aluminium sheet, a Spitfire used approximately 300 kg of aluminium sheet. Post-war, the construction industry adopted aluminium comprehensively for its corrosion resistance, light weight, and formability. London's South Bank cultural complex, built in the 1950s and 1960s, used extensive aluminium cladding. The aluminium can, technically thin-gauge sheet formed into cylindrical containers, is the world's most produced aluminium sheet product by volume.
Current Uses
Clean aluminium sheet scrap comes from window and door replacement programmes, commercial building refurbishments (where old aluminium curtain walling is removed), roofing and cladding replacement on industrial buildings, and fabrication workshop offcuts. The grade is defined by the absence of heavy steel attachments, window frames with integrated steel reinforcement or large areas of attached steel reduce the grade to mixed aluminium. Clean sheet melts with high efficiency at secondary aluminium smelters, making it one of the best-paying aluminium grades. The UK's ongoing social housing improvement programme, which includes window replacement as part of energy efficiency upgrades, is generating significant volumes of clean aluminium window frame scrap.
Future Possible Uses
Clean aluminium sheet scrap will remain a high-value recycling stream as the installed base of aluminium windows and cladding in the UK's building stock reaches its second replacement cycle. The expansion of aluminium in electric vehicle bodies, to reduce weight and extend battery range, creates new future demand for recycled wrought aluminium sheet alloys. Aircraft production, projected to grow significantly through the late 2020s and 2030s as air travel demand recovers, will require increasing volumes of aerospace-grade aluminium sheet. Building integrated photovoltaic (BIPV) systems, which incorporate solar cells into aluminium-framed building elements, represent a new source of aluminium sheet in the building envelope. Thin aluminium sheet for battery electrode current collectors is a growing demand channel from the lithium-ion battery industry.
Where Does This Scrap Come From?
Clean aluminium sheet scrap comes from window fabricators who generate offcut sheet during frame production; window installation companies who remove old aluminium frames during replacements; commercial roofing contractors replacing corrugated or flat aluminium roofing; cladding installers removing old aluminium panels; sheet metal workers handling aluminium fabrication; and demolition companies stripping aluminium curtain walling. The key quality requirement is minimal steel content, steel reinforcement bars inside window frames, steel fixings, and attached steel brackets all reduce the grade. For maximum price, sellers should remove obvious steel components before delivery. Clean, bright, uncontaminated aluminium sheet is always the top-paying aluminium grade at the scrap yard.
How Is It Remanufactured?
Clean aluminium sheet scrap is processed through baling or shredding, followed by de-coating if paint or anodising is present. At a secondary aluminium smelter, the material is charged into a reverberatory or rotary furnace and melted at approximately 660–700°C. The low iron content of clean wrought aluminium alloys (typically below 0.4%) makes it suitable for re-rolling into new wrought alloy products, a more valuable circular loop than downgrading to casting alloy. Flux additions manage dross, and the melt composition is confirmed by OES. The alloy is cast into rolling slabs, hot-rolled on a reversing mill, and cold-rolled to final gauge. Clean aluminium sheet from windows (typically 6063 or 6060 alloy) is readily recycled into new extrusion billet. The energy saving versus primary aluminium is approximately 95%, making this one of the most environmentally beneficial recycling processes in the metals industry.
5-Year Price Trend & Forecast
Clean aluminium sheet scrap pays the highest aluminium grade prices at UK scrap yards, typically 10–20% above mixed or cast aluminium. LME aluminium ranged from approximately $1,700/tonne in 2021 to above $3,800/tonne during the European energy crisis in early 2022, before moderating to a range of $2,000–2,600/tonne through 2023–2025. UK scrap yard prices for clean aluminium sheet have ranged from approximately £900 to £1,600/tonne. The energy crisis premium for aluminium reflected European primary aluminium smelters curtailing production due to electricity cost spikes, this premium has since moderated but highlights the fundamental energy intensity of primary aluminium production that makes recycled material so valuable. Forecasts for 2026–2030 suggest modestly positive aluminium price trends driven by EV and renewable energy demand.
📌 Note: All scrap yard prices paid by QuickStop Metals are updated daily against the prevailing market rate. Check today’s prices →
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