24 July 2021 5000 Series Aluminum Alloy
5454 Aluminum Alloy Plate
5454 aluminium alloy is an alloy in the wrought aluminium-magnesium family (5000 or 5xxx series). It is closely related to 5154 aluminium alloy. As an aluminium-magnesium alloy, it combines moderate-to-high strength with excellent weldability. Like 5154, 5454 aluminium is commonly used in welded structures such as pressure vessels and ships. As a wrought alloy, it can be formed by rolling, extrusion, and forging (although forging is not common), but not casting. It can be cold worked to produce tempers with a higher strength but a lower ductility. It is generally not clad.
The 5454 grade aluminum was developed for use in the manufacture of aluminum sheets into tank/dry bulk trailers and dump bodies. Qualities include high strength, excellent weldability, formability, and corrosion resistance. This aluminum metal is rated lower for machine applications, as it needs oil lubricants. Magnesium is the main alloy element in the 5454 grade aluminum.
Chemical Composition:
| Chemical Element | Weight % |
|---|---|
| Manganese (Mn) | 0.50 - 1.00 |
| Iron (Fe) | 0.0 - 0.40 |
| Magnesium (Mg) | 2.40 - 3.00 |
| Silicon (Si) | 0.0 - 0.25 |
| Chromium (Cr) | 0.05 - 0.20 |
| Titanium (Ti) | 0.0 - 0.20 |
| Zinc (Zn) | 0.0 - 0.25 |
| Copper (Cu) | 0.0 - 0.10 |
| Other (Each) | 0.0 - 0.05 |
| Others (Total) | 0.0 - 0.15 |
| Aluminium (Al) | Balance |
Mechanical Properties:
| Material | Temper | Thickness (mm) | Tensile Strength (N/mm²) | Yield Strength (min) (N/mm²) | Elongation in 50mm (%) | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0.5 mm | 0.8 mm | 1.3 mm | 2.6 mm | 3.0 mm | |||||
| Alloy 5454 Sheet | O | 0.2-6.0 | 215-285 | 80 | 12 | 14 | 16 | 18 | 14 |
| Alloy 5454 Sheet | H22 | 0.2-3.0 | 250-305 | 180 | 4 | 5 | 7 | 8 | - |
| Alloy 5454 Sheet | H24 | 0.2-3.0 | 270-325 | 200 | 3 | 4 | 5 | 6 | - |
Physical Properties:
| Physical Property | Value |
|---|---|
| Density | 2.69 g/cm³ |
| Melting Point | 645 °C |
| Thermal Expansion | 23.6 x10^-6 /K |
| Modulus of Elasticity | 70.5 GPa |
| Thermal Conductivity | 135 W/m.K |
| Electrical Resistivity | 34 % IACS |
Annealing:
Aluminium / Aluminum 5454 alloy is annealed at 343°C (650°F) only when the need to relieve the cold working stress arises. After being sufficiently heated the alloy is finally cooled in air.
Cold Working:
Aluminium / Aluminum 5454 alloy is capable of being cold worked by using conventional methods. This alloy can be cold worked in any of the H-32, H-34, H-111 tempers or in the annealed condition.
Welding:
Aluminium / Aluminum 5454 alloy is capable of being welded by all the commercial welding methods.
Forging:
Aluminium / Aluminum 5454 alloy can be hot forged.
Forming:
Aluminium / Aluminum 5454 alloy can be readily cold worked in the annealed or tempered conditions. This alloy contains good cold working and hot working characteristics.
Machinability:
The machinability of Aluminium / Aluminum 5454 alloy is rated from fair to poor. Machining operations for this alloy is recommended when the alloy is in the H-34 temper condition. Oil lubricants can be used in the machining process.
Heat Treatment:
Aluminium / Aluminum 5454 alloy cannot be heat treated.
Hot Working:
Aluminium / Aluminum 5454 alloy can be hot worked in the temperature range of 371 to 204°C (700 to 400°F).
Hardening:
Aluminium / Aluminum 5454 alloy can be hardened only by being cold worked.
Applications:
Aluminium / Aluminum 5454 alloy is used in pressure vessels, marine service and welded structures.