EN AC-41000 (AISi2MgTi) Cast Aluminum
EN AC-41000 aluminum is an aluminum alloy formulated for casting. 41000 is the EN numeric designation for this material. AISi2MgTi is the EN chemical designation.
It has the highest melting temperature among Euronorm (EN) cast aluminums. In addition, it has the highest thermal conductivity and a moderately high electrical conductivity.
The properties of EN AC-41000 aluminum include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN AC-41000 aluminum 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
57 to 97
Elastic (Young's, Tensile) Modulus
69 GPa 10 x 106 psi
Elongation at Break
4.5 %
Fatigue Strength
58 to 71 MPa 8.4 to 10 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.8 x 106 psi
Tensile Strength: Ultimate (UTS)
170 to 280 MPa 25 to 41 x 103 psi
Tensile Strength: Yield (Proof)
80 to 210 MPa 12 to 30 x 103 psi
Thermal Properties
Latent Heat of Fusion
420 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
640 °C 1180 °F
Melting Onset (Solidus)
630 °C 1160 °F
Specific Heat Capacity
900 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
170 W/m-K 96 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
38 % IACS
Electrical Conductivity: Equal Weight (Specific)
130 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % 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
1160 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
6.4 to 11 MJ/m3
Resilience: Unit (Modulus of Resilience)
46 to 300 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
18 to 29 points
Strength to Weight: Bending
26 to 35 points
Thermal Diffusivity
69 mm2/s
Thermal Shock Resistance
7.8 to 13 points
Alloy Composition
Among cast aluminum alloys, the composition of EN AC-41000 aluminum is notable for including lead (Pb) and tin (Sn). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Tin is used to increase bearing properties at the cost of a decrease in corrosion resistance.
| Al | 95.2 to 97.6 | |
| Si | 1.6 to 2.4 | |
| Mg | 0.45 to 0.65 | |
| Mn | 0.3 to 0.5 | |
| Fe | 0 to 0.6 | |
| Ti | 0.050 to 0.2 | |
| Zn | 0 to 0.1 | |
| Cu | 0 to 0.1 | |
| Ni | 0 to 0.050 | |
| Sn | 0 to 0.050 | |
| Pb | 0 to 0.050 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
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