Aluminium in 6061, 6082, 7075, 2024, 5083 and 5052 across sheets, plates, extrusions, bars and tubes to ASTM B209 and B221. Tempers from O through T651, with Mill Test Certificate and optional PMI verification on every shipment.
Aluminium alloys trade three properties against each other, and no alloy wins on all three. Picking the right one means knowing which you can compromise.
6061 is the default for a reason: it welds, machines, anodises and resists corrosion adequately while carrying useful strength. Go to 7075 or 2024 only when strength-to-weight genuinely drives the design, and accept that you lose weldability and corrosion resistance. For marine service, 5083 is the answer regardless of what else the design wants.
The temper suffix after the alloy number defines the heat treatment and mechanical condition. 6061-O and 6061-T6 are the same alloy with completely different properties.
For machined plate, specify T651 rather than T6. The stress-relief stretch prevents the part distorting as material is removed, which is a frequent and expensive surprise for buyers who specify T6 and machine deep pockets.
On specifications: the figures above reflect standard industry specifications for this product. Your actual batch values are confirmed on the Mill Test Certificate or Certificate of Analysis issued against your specific lot — provided with every shipment, and with sample orders before you commit to bulk. We do not ask buyers to take a specification on trust.
Mill Test Certificate provided with every shipment, traceable by lot. Anodising, powder coating and mill finish available on request.
Aerospace and structural buyers require full traceability. Specify certification requirements at enquiry stage rather than after production.
HS Code 7606 (plates and sheets) · 7604 (bars, rods, profiles) · 7608 (tubes). Declared per form ordered.
MOQ is discussed at order stage based on alloy and form. Payment by advance TT, LC at sight, or DP/DA case by case.
6061 is the default all-rounder: it welds, machines, anodises and resists corrosion adequately while carrying useful strength. Choose 7075 or 2024 only where strength-to-weight genuinely drives the design, accepting that both lose weldability and corrosion resistance. For marine service, 5083 is the answer regardless of what else the design wants.
Both are solution treated and artificially aged to peak strength. T651 adds a stress-relief stretch after heat treatment. For machined plate this matters a great deal: without stress relief the part distorts as material is removed, particularly on deep pockets. Specify T651 for anything that will be substantially machined.
Not practically by conventional fusion welding. 7075 is highly susceptible to hot cracking in the weld zone and loses its temper in the heat-affected zone. It is designed for riveted and bolted assembly. If your design requires welding and high strength, 6061-T6 or a 5xxx series alloy is the realistic route.
5083. It is a magnesium-alloyed non-heat-treatable grade with excellent resistance to saltwater corrosion, and it welds well, which matters for hull and structural fabrication. 6061 will corrode in prolonged marine exposure, and 7075 and 2024 both perform poorly in salt environments.
Plates, sheets and strip over 0.2mm thick fall under HS Code 7606. Bars, rods and profiles fall under 7604, and tubes and pipes under 7608. We declare the correct code based on the form ordered.
Check the Mill Test Certificate for full chemistry and mechanical test results against ASTM B209 or the applicable EN standard. Positive Material Identification by XRF on the physical material is available on request, and is worth arranging on first transactions and for any structural or aerospace application.
Technical drawings welcome. FOB or CIF pricing within 24 hours. Third-party inspection available.
Technical drawings welcome. FOB or CIF pricing, samples available.
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