Summary
5052 is an aluminium–magnesium alloy, primarily alloyed with magnesium and chromium. 5052 is not a heat treatable aluminum alloy, but can be hardened through cold working.[2]
| 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 edit
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 edit
| Hardening | Ultimate MPa (PSI) | Yield MPa (PSI) | Tensile Strength acc. ASTM B209 [KSI] | Yield Strength acc. ASTM B209 [KSI] |
|---|---|---|---|---|
| O | 195 (28000) | 89.6 (13000) | ||
| H32 | 228 (33000) | 193 (28000) | 31.0 - 38.0 | >23.0 |
| H34 | 262 (38000) | 214 (31000) | 34.0 - 41.0 | >26.0 |
| H36 | 276 (40000) | 241 (35000) | 37.0 - 44.0 | >29.0 |
| H38 | 290 (42000) | 255 (37000) | >39.0 | >32.0 |
Uses edit
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 edit
Weldability – Gas: Good
Weldability – Arc: Very Good
Weldability – Resistance: Very Good
Brazability: Acceptable
Solderability: Not recommended