1230A-H22 Aluminum
1230A-H22 aluminum is 1230A aluminum in the H22 temper. To achieve this temper, the metal is strain hardened, and then partially annealed, to a strength that is roughly a quarter of the way between annealed (O) and full-hard (H28).
The graph bars on the material properties cards below compare 1230A-H22 aluminum to: 1000-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
69 GPa 9.9 x 106 psi
Elongation at Break
10 %
Fatigue Strength
67 MPa 9.7 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
65 MPa 9.4 x 103 psi
Tensile Strength: Ultimate (UTS)
110 MPa 16 x 103 psi
Tensile Strength: Yield (Proof)
86 MPa 12 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
640 °C 1180 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
230 W/m-K 130 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
60 % IACS
Electrical Conductivity: Equal Weight (Specific)
200 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.0 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.2 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1190 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
10 MJ/m3
Resilience: Unit (Modulus of Resilience)
53 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
11 points
Strength to Weight: Bending
19 points
Thermal Diffusivity
93 mm2/s
Thermal Shock Resistance
4.9 points
Alloy Composition
| Al | 99.3 to 100 | |
| Si | 0 to 0.7 | |
| Fe | 0 to 0.7 | |
| Cu | 0 to 0.1 | |
| Mn | 0 to 0.050 | |
| Zn | 0 to 0.050 | |
| Mg | 0 to 0.050 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984
ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties