1350-H12 Aluminum
1350-H12 aluminum is 1350 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). The graph bars on the material properties cards below compare 1350-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
Brinell Hardness
28
Elastic (Young's, Tensile) Modulus
68 GPa 9.9 x 106 psi
Elongation at Break
8.9 %
Fatigue Strength
30 MPa 4.4 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
60 MPa 8.7 x 103 psi
Tensile Strength: Ultimate (UTS)
94 MPa 14 x 103 psi
Tensile Strength: Yield (Proof)
79 MPa 11 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
660 °C 1210 °F
Melting Onset (Solidus)
650 °C 1190 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
230 W/m-K 140 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
62 % IACS
Electrical Conductivity: Equal Weight (Specific)
200 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Calomel Potential
-740 mV
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.3 kg CO2/kg material
Embodied Energy
160 MJ/kg 67 x 103 BTU/lb
Embodied Water
1200 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
7.9 MJ/m3
Resilience: Unit (Modulus of Resilience)
45 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
96 mm2/s
Thermal Shock Resistance
4.2 points
Alloy Composition
| Al | 99.5 to 100 | |
| Fe | 0 to 0.4 | |
| Si | 0 to 0.1 | |
| B | 0 to 0.050 | |
| Zn | 0 to 0.050 | |
| Cu | 0 to 0.050 | |
| Ga | 0 to 0.030 | |
| Ti | 0 to 0.020 | |
| V | 0 to 0.020 | |
| Mn | 0 to 0.010 | |
| Cr | 0 to 0.010 | |
| res. | 0 to 0.1 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B236: Standard Specification for Aluminum Bars for Electrical Purposes (Bus Bars)
ASTM B609: Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
ASTM B233: Standard Specification for Aluminum 1350 Drawing Stock for Electrical Purposes
ASTM B230: Standard Specification for Aluminum 1350-H19 Wire for Electrical Purposes
Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993
EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties
Aluminum Standards and Data, Aluminum Association Inc., 2013
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993