5254 (A95254) Aluminum
5254 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5254 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5254. A95254 is the UNS number.
It originally received its standard designation in 1954.
The properties of 5254 aluminum include fourteen common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 5254 aluminum to: 5000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
68 GPa 9.8 x 106 psi
Elongation at Break
3.4 to 22 %
Fatigue Strength
110 to 160 MPa 15 to 23 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
150 to 200 MPa 21 to 30 x 103 psi
Tensile Strength: Ultimate (UTS)
240 to 350 MPa 35 to 51 x 103 psi
Tensile Strength: Yield (Proof)
100 to 270 MPa 14 to 40 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
190 °C 370 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
590 °C 1100 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
130 W/m-K 72 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
32 % IACS
Electrical Conductivity: Equal Weight (Specific)
110 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.8 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1180 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
11 to 41 MJ/m3
Resilience: Unit (Modulus of Resilience)
73 to 550 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
25 to 37 points
Strength to Weight: Bending
32 to 41 points
Thermal Diffusivity
52 mm2/s
Thermal Shock Resistance
10 to 16 points
Alloy Composition
Among wrought aluminum alloys, the composition of 5254 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.
| Al | 94.4 to 96.8 | |
| Mg | 3.1 to 3.9 | |
| Cr | 0.15 to 0.35 | |
| Si | 0 to 0.45 | |
| Fe | 0 to 0.45 | |
| Zn | 0 to 0.2 | |
| Ti | 0 to 0.050 | |
| Cu | 0 to 0.050 | |
| Mn | 0 to 0.010 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
Aluminum Standards and Data, Aluminum Association Inc., 2013
ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993
ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties