1435-H12 Aluminum
1435-H12 aluminum is 1435 aluminum in the H12 temper. To achieve this temper, the metal is strain hardened to a strength that is roughly a quarter of the way between annealed (O) and full-hard (H18).
It has the second lowest strength and second highest ductility compared to the other variants of 1435 aluminum.
The graph bars on the material properties cards below compare 1435-H12 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
8.1 %
Fatigue Strength
42 MPa 6.1 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
56 MPa 8.1 x 103 psi
Tensile Strength: Ultimate (UTS)
95 MPa 14 x 103 psi
Tensile Strength: Yield (Proof)
57 MPa 8.3 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
650 °C 1190 °F
Melting Onset (Solidus)
640 °C 1190 °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)
6.7 MJ/m3
Resilience: Unit (Modulus of Resilience)
24 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
9.7 points
Strength to Weight: Bending
17 points
Thermal Diffusivity
93 mm2/s
Thermal Shock Resistance
4.2 points
Alloy Composition
| Al | 99.35 to 99.7 | |
| Fe | 0.3 to 0.5 | |
| Si | 0 to 0.15 | |
| Zn | 0 to 0.1 | |
| Mn | 0 to 0.050 | |
| Mg | 0 to 0.050 | |
| Ti | 0 to 0.030 | |
| Cu | 0 to 0.020 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B483: Standard Specification for Aluminum and Aluminum-Alloy Drawn Tube and Pipe for General Purpose Applications
Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993