5xxx · Magnesium alloy
5052 aluminium — composition, properties and extrusion notes
The strongest common non-heat-treatable sheet alloy, and the marine standard.
How it compares
Relative to the other grades we extrude. This is a selection aid, not a specification.
Mechanical properties
| Temper | Tensile (MPa) | Yield (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| O | 195 | 75 | 25 | 47 |
| H32 | 230 | 195 | 12 | 60 |
Typical values for extruded product. Minimum guaranteed values depend on temper and product form — the mill certificate governs.
Composition limits
| Element | Limit (%) |
|---|---|
| Si | 0.25 |
| Fe | 0.40 |
| Cu | 0.10 |
| Mn | 0.10 |
| Mg | 2.2–2.8 |
| Cr | 0.15–0.35 |
| Zn | 0.10 |
| Al | remainder |
Single figures are maxima; ranges are the permitted window.
Working with this alloy
- Density
- 2.68 g/cm³
- Common tempers
- O, H32, H34
Physical properties
| Property | Value |
|---|---|
| Thermal conductivity | 138 W/m·K |
| Melting range | 607–650 °C |
| Electrical conductivity | 35 % IACS |
When to use it
Best corrosion resistance of the common alloys, particularly in salt water. Not heat-treatable, so strength comes from work hardening.
Typical applications
- Marine structures and boat hulls
- Fuel and hydraulic tanks
- Pressure vessels
- Appliance and electronics chassis
Other alloys
1060
99.6% pure aluminium for conductivity, ductility and chemical resistance.
1100
99.0% pure aluminium — the workhorse of the commercially pure grades.
3003
Manganese-bearing alloy — about 20% stronger than 1100 with similar workability.
6005A
A stronger structural alternative to 6063, developed for extruded transport profiles.
6060
A close relative of 6063, tuned for a slightly brighter anodised finish.