EN AC-45300-T4 Cast Aluminum
EN AC-45300-T4 is EN AC-45300 aluminum in the T4 temper. To achieve this temper, the metal is solution heat-treated and naturally aged. The graph bars on the material properties cards below compare EN AC-45300-T4 to: Euronorm (EN) cast aluminums (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
94
Elastic (Young's, Tensile) Modulus
71 GPa 10 x 106 psi
Elongation at Break
2.8 %
Fatigue Strength
59 MPa 8.6 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Tensile Strength: Ultimate (UTS)
220 MPa 32 x 103 psi
Tensile Strength: Yield (Proof)
150 MPa 21 x 103 psi
Thermal Properties
Latent Heat of Fusion
470 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
630 °C 1160 °F
Melting Onset (Solidus)
590 °C 1090 °F
Specific Heat Capacity
890 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
150 W/m-K 85 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
36 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.0 kg CO2/kg material
Embodied Energy
150 MJ/kg 64 x 103 BTU/lb
Embodied Water
1120 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
5.6 MJ/m3
Resilience: Unit (Modulus of Resilience)
160 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
30 points
Thermal Diffusivity
60 mm2/s
Thermal Shock Resistance
10 points
Alloy Composition
| Al | 90.2 to 94.2 | |
| Si | 4.5 to 5.5 | |
| Cu | 1.0 to 1.5 | |
| Mg | 0.35 to 0.65 | |
| Fe | 0 to 0.65 | |
| Mn | 0 to 0.55 | |
| Ni | 0 to 0.25 | |
| Ti | 0 to 0.25 | |
| Pb | 0 to 0.15 | |
| Zn | 0 to 0.15 | |
| Sn | 0 to 0.050 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
EN 1706: Aluminium and aluminium alloys. Castings. Chemical composition and mechanical properties
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015