6063 Aluminium Sheet and Plate

6063 sheet is the flat product that matches 6063 extrusions when a facade, window, or showcase has to anodise to one colour. It bends cleanly in O and T4, welds, and holds a uniform anodised surface. Corrosion resistance is good enough for outdoor architectural work.

Profiles in the same alloy are supplied as extrusions. Bar is 6063 bar. Tube is 6063 extruded tube. For a stronger structural plate, see 6082 T6 plate and 6061 sheet.

Standards and names

ASTM B209, EN 485, EN 573-3.

Chemical composition (wt %)

Mechanical and physical properties

T5 is aged after forming, so it still bends. T6 is solution treated and aged, so strength is higher. T651 is T6 that has been stretched, used when a thick plate has to stay flat after machining.

Decorative anodic film is typically 10–15 µm, architectural Class I about 18 µm, and hard anodising 25 µm or more. Sheet and extrusion that must match in colour should be anodised in one lot, with the same brush or blast prep.

Stock

T6 sheet and plate are listed from 0.019 in (0.483 mm) through 7.874 in (200 mm). Common sheet blanks are about 49.2 × 98.4 in and 59.1 × 118.1 in. Thicker T6 plate is also listed at about 78.7 × 157.5 in.

T651 runs from 0.156 in through 7.875 in, including thick plate at 78.74 × 157.48 in.

T5 in the narrow-strip list is 0.078, 0.118, and 0.157 in thick, in widths from 0.394 in to 1.968 in, at 118.11 in long. Those widths are slit strip, not full sheet. Wider T5 sheet is cut to order.

Listed piece weights on those blanks assume the published sheet calculation. A blank in another size can be checked on the metal weight calculator.

Duties: curtain wall and infill, door and window panels, signage, enclosures, and interior trim that has to sit next to a 6063 frame.

Send temper, finish, anodic thickness, and whether the sheet must match an extrusion lot, with an enquiry.