EN AC-21100-T6 Cast Aluminum
EN AC-21100-T6 is EN AC-21100 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare EN AC-21100-T6 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
110
Elastic (Young's, Tensile) Modulus
71 GPa 10 x 106 psi
Elongation at Break
6.2 %
Fatigue Strength
87 MPa 13 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Tensile Strength: Ultimate (UTS)
350 MPa 51 x 103 psi
Tensile Strength: Yield (Proof)
240 MPa 35 x 103 psi
Thermal Properties
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
670 °C 1230 °F
Melting Onset (Solidus)
550 °C 1020 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
130 W/m-K 74 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
34 % IACS
Electrical Conductivity: Equal Weight (Specific)
100 % IACS
Otherwise Unclassified Properties
Base Metal Price
11 % relative
Density
3.0 g/cm3 190 lb/ft3
Embodied Carbon
8.0 kg CO2/kg material
Embodied Energy
150 MJ/kg 64 x 103 BTU/lb
Embodied Water
1150 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
19 MJ/m3
Resilience: Unit (Modulus of Resilience)
400 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
46 points
Strength to Weight: Axial
33 points
Strength to Weight: Bending
37 points
Thermal Diffusivity
48 mm2/s
Thermal Shock Resistance
15 points
Alloy Composition
| Al | 93.4 to 95.7 | |
| Cu | 4.2 to 5.2 | |
| Mn | 0 to 0.55 | |
| Ti | 0.15 to 0.3 | |
| Fe | 0 to 0.19 | |
| Si | 0 to 0.18 | |
| Zn | 0 to 0.070 | |
| res. | 0 to 0.1 |
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
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984