In the fields of shipbuilding, new energy equipment, etc., 5083 series aluminum metal sheets have become the core material of lightweight design with excellent corrosion resistance and welding performance. Among them, the aluminum alloy products in the two states of H116 and H111 show completely different technical characteristics in practical applications due to process differences.
Process Innovation: Balance from Strengthening to Flexibility
The H116 state aluminum alloy plate adopts the continuous casting and rolling stabilization process, and forms a dense oxide film while maintaining high strength (tensile strength ≥ 270MPa) by precisely controlling the cold rolling deformation. This process particularly strengthens the solid solution effect of magnesium and manganese elements, giving 5083 H116 aluminum flat plates the ability to resist exfoliation corrosion and withstand 5000 hours of salt spray test in the marine environment. The H111 state aluminum-based sheet undergoes an incomplete annealing treatment, which increases the elongation to more than 15% while retaining moderate work hardening, making it more suitable for plastic processing needs such as deep drawing and flanging.
In extreme scenarios, the high strength and corrosion resistance of 5083 H116 high polished aluminum sheet are significant. For example, the deck structure of ocean-going ships and offshore wind power platform brackets need to withstand dual erosion of dynamic loads and salt spray. The stabilized microstructure of 5083 H116 aluminum alloy can effectively delay stress corrosion cracking. On the other hand, 5083 H111 aluminum material has excellent forming efficiency and is more cost-effective in mass production of new energy vehicle battery trays, cold chain logistics containers, etc. The qualified rate of a single stamping can reach more than 98%.
Choose H116 or H111 anodized aluminum sheet? The answer depends on the mechanical bearing requirements and environmental corrosion level of the terminal scenario. For engineering parties who pursue the optimal life cycle cost, accurately matching material performance and working conditions will become the key path for lightweight upgrades.
