5005 aluminum plate is a medium-strength aluminum-magnesium alloy widely used in architectural decoration. With a nominal magnesium content of 0.5-1.1%, it is among the lowest-strength members of the 5000 series, which makes it exceptionally formable while retaining good corrosion resistance and weldability. Cold working develops useful strength through H-tempers, and crucially, 5005 anodizes to a bright, even film that closely matches the color tone of 6063 extrusions. That consistency is why architects specify 5005 sheet and plate for curtain-wall panels, trims, and interior finishes.
Alloy Composition and Temper System
5005 contains magnesium 0.5-1.1%, with iron and silicon each limited to 0.7% max, and small allowances for other elements, balance aluminum, per ASTM B209 and EN 573-3 (EN AW-5005). Because the alloy is non-heat-treatable, strength is developed by strain hardening followed by optional stabilization, giving tempers from the fully annealed O condition through H12, H14, H16, H18, H22, H24, H26, H28, H32, H34, H36, and H38, plus H111 and H112. For building decoration, O, H32, H34, and H24 are the most commonly specified.
Typical Mechanical Properties
The table below gives typical tensile and yield values for common tempers, consistent with ASTM B209 and EN 485-2 for sheet and plate.
| Alloy-Temper | Tensile Strength (MPa) | Yield Strength 0.2% (MPa, min) | Typical Elongation (%) |
|---|---|---|---|
| 5005-O | 105-145 | 35 | 12-22 depending on gauge |
| 5005-H32 | 120-160 | 85 | 3-10 |
| 5005-H34 | 140-180 | 105 | 2-8 |
| 5005-H36 | 160-200 | 125 | 1-4 |
Elongation minima vary with thickness, so confirm the exact value against the product standard for the ordered gauge.
Surface Quality and Anodizing Performance
5005 is a preferred substrate for decorative anodizing. Its fine grain structure and controlled magnesium content produce a bright, uniform oxide film that is noticeably clearer than the film on 3003 and closely matches 6063 in color tone, allowing sheet and extrusions to be anodized in one batch with consistent appearance. The material also accepts PVDF and polyester coil coatings, powder coating, and brushed or polished finishes. For exterior use, an anodized film of 15-25 microns or a durable PVDF coating is recommended; both withstand long-term UV and atmospheric exposure.
Specification and Supply Range
| Parameter | Typical Range |
|---|---|
| Thickness | 0.10-500 mm |
| Width | 100-2650 mm |
| Length | 500-16000 mm |
| Standards | GB/T 3880, EN 485, ASTM B209 |
| Surface | Mill finish, bright, anodized, coated |
| Delivery terms | FOB, CFR, CIF |
Applications in Building and Decoration
Curtain-wall panels and spandrel covers;
Building facades, ceiling systems, and partition panels;
Architectural trims, handrails, and sign boards;
Vehicle interior and exterior decorative parts;
Cookware, instrument housings, and electrical enclosures;
Ship and marine-adjacent components where corrosion resistance matters.
Frequently Asked Questions
Common tempers are O (annealed), H12/H14/H16/H18 with their H2x equivalents for sheet work, and H112 or F for thick plate; the temper is chosen by the forming operation and the final strength required.
EN 573-3 and ISO 209 define the chemical composition, EN 485-2 the mechanical properties of sheet, GB/T 3880.2 the Chinese equivalent, and ASTM B209 the US product standard.
Store dry and off the floor with the protective interleaving in place, keep the bundles separated from steel and other metals, and handle with care so the surface is not scratched or stained.
Yes, but weldability depends on the alloy family: 3xxx and 5xxx alloys weld readily, 6xxx alloys weld with good strength, and 1xxx pure alloys weld easily for non-structural service.
Mill finish is standard; bright, embossed, anodized and color-coated finishes are available for architectural and decorative service, and the finish is specified on the order.
Sheet is typically supplied from 0.2 mm to 6.0 mm and plate from 6 mm upward, with coil widths from 500 mm to about 2000 mm depending on mill capability and the ordered temper.
