EN AC-43100 (AISi10Mg(b)) Cast Aluminum
EN AC-43100 aluminum is an aluminum alloy formulated for casting. 43100 is the EN numeric designation for this material. AISi10Mg(b) is the EN chemical designation. It has a moderately high electrical conductivity among the Euronorm (EN) cast aluminums in the database.
The properties of EN AC-43100 aluminum include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN AC-43100 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
60 to 94
Elastic (Young's, Tensile) Modulus
71 GPa 10 x 106 psi
Elongation at Break
1.1 to 2.5 %
Fatigue Strength
68 to 76 MPa 9.9 to 11 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Tensile Strength: Ultimate (UTS)
180 to 270 MPa 27 to 39 x 103 psi
Tensile Strength: Yield (Proof)
97 to 230 MPa 14 to 33 x 103 psi
Thermal Properties
Latent Heat of Fusion
540 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
600 °C 1100 °F
Melting Onset (Solidus)
590 °C 1090 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
140 W/m-K 81 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
37 % IACS
Electrical Conductivity: Equal Weight (Specific)
130 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.6 g/cm3 160 lb/ft3
Embodied Carbon
7.8 kg CO2/kg material
Embodied Energy
150 MJ/kg 63 x 103 BTU/lb
Embodied Water
1070 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
2.9 to 5.7 MJ/m3
Resilience: Unit (Modulus of Resilience)
66 to 360 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
54 points
Strength to Weight: Axial
20 to 29 points
Strength to Weight: Bending
28 to 36 points
Thermal Diffusivity
60 mm2/s
Thermal Shock Resistance
8.6 to 12 points
Alloy Composition
Among cast aluminum alloys, the composition of EN AC-43100 aluminum is notable for including lead (Pb) and containing a comparatively high amount of silicon (Si). Lead is used to improve machinability at the cost of toxicity and a decrease in weldability. Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect.
| Al | 86.9 to 90.8 | |
| Si | 9.0 to 11 | |
| Mg | 0.2 to 0.45 | |
| Fe | 0 to 0.55 | |
| Mn | 0 to 0.45 | |
| Ti | 0 to 0.15 | |
| 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