Aluminium Alloy | Commercial Alloy
5454 - 'O' and H111 Sheet
Aluminium alloy 5454 has very good corrosion resistance, in particular to seawater and general environmental conditions. Strength is medium to high and similar alloy 5754 with good strength in the temperature range 65 to 170 degrees centigrade. It has a high fatigue strength. It is not suitable for complex or fine extrusions.
Applications 5454 is typically used in:
~ Road Transport Body-Building
~ Cemical and Process Plant
~ Pressure Vessels, Containers, Boilers
~ Cryogenics
~ Marine & Off-shore incl. Masts,
~ Pylons, poles & masts
Chemical Composition
|
BS EN 573-3:2009 Alloy 5454 |
|
|---|---|
| Chemical Element | % Present |
| Aluminium (Al) | balance |
| Other (Each) | 0.05 max |
| Copper (Cu) | 0.1 max |
| Others (Total) | 0.15 max |
| Chromium (Cr) | 0.05 - 0.2 |
| Titanium (Ti) | 0.2 max |
| Silicon (Si) | 0.25 max |
| Zinc (Zn) | 0.25 max |
| Iron (Fe) | 0.4 max |
| Manganese (Mn) | 0.5 - 1 |
| Magnesium (Mg) | 2.4 - 3 |
Alloy Designations
Alloy 5454 corresponds to the following standard designations and specifications but may not be a direct equivalent:
A5454
ISO Al Mg3MN
Al 2.7Mg 0.8Mn Cr
Temper Types
The most common tempers for 5454 aluminium are shown below
- O
- H111
- H22
- H32
Supplied Forms
Alloy 5454 is supplied in most forms but is not suitable for fine or complex extrusions:
- Plate
- Sheet
- Bar
- Treadplate/Patterened Sheet
- Tube
- Wire
Generic 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 |
Mechanical Properties
|
BS EN 485-2:2008 Sheet - 0.2mm to 6.0mm |
|
|---|---|
| Mechanical Property | Value |
| Proof Stress | 85 Min MPa |
| Tensile Strength | 215 - 275 MPa |
| Hardness Brinell | 58 HB |
Properties above are the range for material in the '0'/H111 conditions
Fabrication
Formability of Alloy 5454 is good in the softer tempers and it can be extruded.
Weldability
Alloy 5454 has good weldability by some methods but Soldering and Brazing are not recommended.