Alloys · 5052

5052 Aluminum: Corrosion-Resistant Magnesium Alloy

In short

5052 is an aluminum–magnesium alloy — the strongest of the common non-heat-treatable grades — with excellent corrosion resistance, including in marine atmospheres, good fatigue strength and good formability. In H32 temper it reaches about 230 MPa tensile, making it the standard choice for sheet-metal enclosures, electronics chassis, marine parts and fuel tanks.

Aluminum plate 150 × 10 mm
5052 plateCharMax Aluminum
Main elements
Mg 2.2–2.8 % · Cr 0.15–0.35 %
Tempers
O · H32 · H34
Tensile (H32)
≈ 230 MPa
Density
2.68 g/cm³
Forms
Sheet, plate, tube

01Chemical composition

ElementSiFeCuMnMgCrZnTi
Weight %≤ 0.25≤ 0.40≤ 0.10≤ 0.102.2–2.80.15–0.35≤ 0.10

Registered limits; remainder aluminum.

02Properties

Property5052-O5052-H325052-H34
Tensile strength Rm≈ 195 MPa≈ 230 MPa≈ 260 MPa
Yield strength Rp0.2≈ 90 MPa≈ 195 MPa≈ 215 MPa
Elongation≈ 25 %≈ 12 %≈ 10 %
Thermal conductivity≈ 138 W/m·K≈ 138 W/m·K≈ 138 W/m·K

Indicative values from published typical and minimum data; properties depend on temper, product form and thickness. The mill certificate for each lot is the controlling document.

03Typical applications

  • Sheet-metal enclosures and electronics chassis
  • Marine hardware and boat parts
  • Fuel and hydraulic tanks
  • Truck and trailer panels
  • Pressure-free vessels

04Frequently asked questions

Why is 5052 called marine grade?

Its magnesium content gives excellent resistance to seawater and salt spray, so it is widely used for boats and coastal equipment.

Can 5052 be anodized?

Yes, it anodizes well for protection, though the appearance is less bright than 6063.

Last updated September 17, 2026 · Reviewed by the CharMax Aluminum engineering team

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