5082-H18 Aluminum
5082-H18 aluminum is 5082 aluminum in the H18 temper. This is the strongest temper normally produced through the action of only strain hardening. The graph bars on the material properties cards below compare 5082-H18 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
67 GPa 9.8 x 106 psi
Elongation at Break
1.1 %
Fatigue Strength
110 MPa 16 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
25 GPa 3.7 x 106 psi
Shear Strength
210 MPa 31 x 103 psi
Tensile Strength: Ultimate (UTS)
380 MPa 54 x 103 psi
Tensile Strength: Yield (Proof)
310 MPa 45 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
180 °C 360 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
560 °C 1040 °F
Specific Heat Capacity
910 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
130 W/m-K 76 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
8.9 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)
4.0 MJ/m3
Resilience: Unit (Modulus of Resilience)
720 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
39 points
Strength to Weight: Bending
43 points
Thermal Diffusivity
54 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Al | 93.5 to 96 | |
| Mg | 4.0 to 5.0 | |
| Fe | 0 to 0.35 | |
| Zn | 0 to 0.25 | |
| Si | 0 to 0.2 | |
| Mn | 0 to 0.15 | |
| Cr | 0 to 0.15 | |
| Cu | 0 to 0.15 | |
| Ti | 0 to 0.1 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993
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
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products