What are the key mechanical properties of 5005 H24 aluminum sheets?
The H24 temper provides a tensile strength range of 145-186 MPa, with yield strength at 125 MPa minimum. Its elongation reaches 3-8%, suitable for light structural applications. The alloy maintains 3003-grade corrosion resistance while offering brighter anodized finishes. Typical thickness ranges from 0.2mm to 6.0mm for sheet products. The H24 temper balances formability and strength through strain hardening and partial annealing.
How does 5005 H24 compare to 3003 H24 in architectural applications?
5005 achieves 10-15% higher strength than 3003 in H24 temper. Its anodized surface exhibits superior reflectivity and color consistency with 6063 alloys. Both share similar weldability using 4043/5356 filler wires. 5005 is preferred for visible architectural elements like ceilings and facades. Cost differences are marginal, with 5005 commanding a 5-8% premium.
What annealing parameters optimize 5005 H24 sheet production?
Critical annealing occurs at 345°C with 2-4 hours holding time for recrystallization. Hot rolling should start at 440°C to homogenize the Mg-Si distribution. Cooling rates below 30°C/min prevent excessive grain growth. Post-anneal cold reduction of 15-25% achieves H24 mechanical specs. Temperature deviations beyond ±10°C risk compromising formability.
Which industries primarily use 5005 H24 sheets?
Electronics utilize it for conductor plates and instrument panels. Construction applies it for decorative wall cladding and roofing. Automotive sectors employ it for trim components and heat shields. Cookware manufacturers value its food-safe oxidation layer. Industrial designers select it for balance of aesthetics and durability.
What surface treatment methods enhance 5005 H24 performance?
Anodizing (15-25μm) improves abrasion resistance and allows color dyeing. PVDF coating provides weather resistance for outdoor installations. Chemical etching (NaOH solution) prepares surfaces for adhesive bonding. Mechanical polishing achieves Ra<0.8μm for reflective applications. Chromate conversion coating boosts saltwater corrosion resistance.
