5052 aluminium alloy
5052 is an aluminium alloy, primarily alloyed with magnesium and chromium.
| A5052 | |
|---|---|
| Physical properties | |
| Density (ρ) | 2.68 g/cm3[1] |
| Mechanical properties | |
| Young's modulus (E) | 69.3 GPa (10,050 ksi) |
| Tensile strength (σt) | 195–290 MPa (28.3–42.1 ksi) |
| Elongation (ε) at break | 7-27% |
| Poisson's ratio (ν) | 0.33 |
| Thermal properties | |
| Melting temperature (Tm) | 607 °C (1,125 °F) |
| Thermal conductivity (k) | 138 W/m*K |
| Linear thermal expansion coefficient (α) | 2.38*10−5 K−1 |
| Specific heat capacity (c) | 880 J/kg*K |
| Electrical properties | |
| Volume resistivity (ρ) | 49.3-49.9 nOhm*m |
Chemical properties
The alloy composition of 5052 is:[2]
- Magnesium - 2.2%-2.8% by weight
- Chromium - 0.15%-0.35% maximum
- Copper - 0.1% maximum
- Iron - 0.4% maximum
- Manganese - 0.1% maximum
- Silicon - 0.25% maximum
- Zinc - 0.1% maximum
- Remainder Aluminium
A similar alloy A5652 exists differing only in impurities limits.
Mechanical properties
| Hardening | Ultimate MPa (PSI) | Yield MPa (PSI) |
|---|---|---|
| O | 195 (28000) | 89.6 (13000) |
| H32 | 228 (33000) | 193 (28000) |
| H34 | 262 (38000) | 214 (31000) |
| H36 | 276 (40000) | 241 (35000) |
| H38 | 290 (42000) | 255 (37000) |
Uses
Typical applications include marine, aircraft, architecture, general sheet metal work, heat exchangers, fuel lines and tanks, flooring panels, streetlights, appliances, rivets and wire.
The exceptional corrosion resistance of 5052 alloy against seawater and salt spray makes it a primary candidate for the failure-sensitive large marine structures, like tanks of liquefied natural gas tankers.
Weldability
Weldability – Gas: Good
Weldability – Arc: Very Good
Weldability – Resistance: Very Good
Brazability: Acceptable
Solderability: Not recommended
References
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