Aluminum Alloy 5454 (UNS A95454)
Aluminum 5454 is a high-performance, non-heat-treatable alloy engineered for harsh environments. With exceptional saltwater corrosion resistance, it is the preferred material for marine structures, pressure vessels, and automotive fuel systems.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Aluminum | 94.5% | 97.1% |
| Chromium | 0.05% | 0.2% |
| Copper | —— | 0.1% |
| Iron | —— | 0.4% |
| Magnesium | 2.4% | 3.0% |
| Manganese | 0.5% | 1.0% |
| Silicon | —— | 0.25% |
| Titanium | —— | 0.2% |
| Zinc | —— | 0.25% |
| Residuals | —— | 0.15% |
The following table provides a list of aluminum 5454 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 2690 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength | 240 - 300 MPa |
| Yield Strength | 80 - 130 MPa |
| Young’s Modulus (E) | 70 GPa |
| Shear Modulus (G) | 26 GPa |
| Elongation at Break | 12 - 20% |
| Poisson’s Ratio (ν) | 0.33 |
| Brinell Hardness | 60 HB |
| Thermal Properties | Metric |
| Melting Point | 601 - 646 °C |
| Thermal Conductivity | 130 W/m·K |
| Specific Heat Capacity (Cp) | 900 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 2.23×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 1.97×107 S/m |
| Electrical Resistivity | 5.1×10-8 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of Aluminum 5454
| Advantages | Disadvantages |
|---|---|
| Excellent corrosion resistance | Non-heat treatable |
| Good formability | Lower strength than some other aluminum alloys |
| Good weldability | High cost |
| Lightweight |
Applications of Aluminum 5454
Aluminum 5454 excels in demanding environments where corrosion resistance and weldability are critical. Key industrial applications include:
- Marine industry: Its excellent corrosion resistance makes it a popular choice for marine applications such as boat hulls, decks, and other components that are exposed to saltwater environments.
- Pressure vessels: Used in the construction of pressure vessels, such as tanks for compressed air or other gases, due to good weldability and formability.
- Automotive industry: Found in automotive parts such as fuel tanks, heat exchangers, and other components that require good corrosion resistance and strength-to-weight ratio.
- Welded structures: The good weldability and formability make it an ideal material for welded structures such as bridges, buildings, and other infrastructure.
- Other industrial applications: Also used in a variety of other industrial applications such as storage tanks, chemical processing equipment, and food processing machinery due to excellent corrosion resistance and lightweight properties.