Aluminum 5052 sheet, as an Al-Mg series rust-resistant aluminum alloy, exhibits moderate strength, high elongation, good fatigue resistance, and excellent corrosion resistance and machinability.

1. Strength characteristics
- Tensile strength:
170–305 MPa, falling within the medium strength range of aluminum alloys, significantly higher than pure aluminum (e.g., 1060 aluminum sheet has a tensile strength of 110-130 MPa).
- Conditional yield strength:
≥65 MPa, indicating strong resistance to plastic deformation under stress.
- Work hardening conditions:
Different work hardening conditions (e.g., O temper, H32, H34, H112) result in different strengths. For example:
O temper (annealed): Tensile strength approximately 195 MPa, yield strength 90 MPa, elongation up to 25%, suitable for deep drawing, bending, and other processes requiring high plasticity.
H32 temper: Tensile strength increased to 230 MPa, yield strength 195 MPa, elongation 12%, balancing strength and plasticity.
H112 Temper:Tensile strength 215 MPa, yield strength 132 MPa, elongation 22%, suitable for applications requiring medium strength.

2. Plasticity
- Elongation:
12%–20% (12% in H32 temper, up to 25% in O temper), significantly higher than pure aluminum (e.g., 1060 series elongation is only 5%). This means 5052 aluminum sheet can undergo significant deformation without cracking under stress, making it suitable for manufacturing parts requiring complex shapes.
- Bending performance:
The bending radius in the O temper can reach 0.5 times the sheet thickness, while in the H32 temper it needs to increase to 1.2 times, indicating that its plasticity decreases with work hardening, but it still meets most bending requirements.

3. Fatigue resistance
5052 aluminum sheet has excellent fatigue strength, especially under cyclic loading, making it less prone to cracking or fracture. It is suitable for manufacturing components subjected to alternating stress, such as aircraft fuel tanks, fuel lines, and vehicle wheel hub liners.

4. Corrosion resistance
As a rust-resistant aluminum alloy, 5052 aluminum exhibits significantly better corrosion resistance than 3000 series and 6000 series aluminum alloys in marine atmospheres and salt spray environments. For example, it shows no pitting corrosion after 240 hours of salt spray testing, and the corrosion rate at welded areas is 50% lower than that of the base material, making it suitable for manufacturing sheet metal parts for ships, chemical storage tanks, and other components with high corrosion resistance requirements.

5. Machinability
- Cold working:
Easy to process by stamping, bending, and stretching. The O temper is suitable for deep drawing to produce small-load parts (such as fuel tanks and liquid containers), while the H32 temper is suitable for sheet metal parts with medium strength requirements.
- Hot working:
In the hot state (420-475℃), the allowable deformation rate is >80%, but after cold work hardening, the plasticity drops below 30%. The temper must be selected according to processing requirements.
- Weldability:
Argon arc welding yields a weld strength retention rate of 90%-95%. Air tightness requires improvement using specific welding materials; ER5356 welding rods are recommended.

6. Surface treatment properties
5052 aluminum sheets can undergo anodizing, coating, and other surface treatments. With an oxide film thickness of 10-25μm, salt spray corrosion resistance can be increased to 500 hours. Fluorocarbon coating (PVDF) provides 20 years of weather resistance, while electrostatic powder coating with a thickness of 40-120μm meets both decorative and protective requirements.

Application scenarios of aluminium 5052 sheet:
Aerospace: Aircraft fuel tanks, fuel conduits, rocket forging rings, and non-load-bearing components of spacecraft sealed compartments.
Transportation: Ship sheet metal parts (thickness 8-20mm), automotive wheel hub liners, and high-speed rail luggage rack profiles.
Industrial equipment: Chemical storage tanks (thickness 0.15-600mm), hydraulic press templates (thickness 8-300mm).
Construction: Curtain wall panels, roofs, doors, windows, and other components requiring corrosion resistance and machinability.