332.0 (332.0-T5, formerly F332.0, LM26, SC103A, A03320) Cast Aluminum
332.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the T5 temper. To achieve this temper, the metal is artificially aged until it meets standard mechanical property requirements. 332.0 is the Aluminum Association (AA) designation for this material. 332 is the SAE designation. LM26 is the British Standard (BS) designation. A03320 is the UNS number. Additionally, the AFNOR (French) designation is A-S7U3G. Older literature may refer to this material as F332.0 or ASTM SC103A.
The graph bars on the material properties cards below compare 332.0 aluminum to: ANSI/AA 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
73 GPa 11 x 106 psi
Elongation at Break
1.0 %
Fatigue Strength
90 MPa 13 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 4.0 x 106 psi
Shear Strength
190 MPa 28 x 103 psi
Tensile Strength: Ultimate (UTS)
250 MPa 36 x 103 psi
Tensile Strength: Yield (Proof)
190 MPa 28 x 103 psi
Thermal Properties
Latent Heat of Fusion
530 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
580 °C 1080 °F
Melting Onset (Solidus)
530 °C 990 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
100 W/m-K 60 BTU/h-ft-°F
Thermal Expansion
21 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
26 % IACS
Electrical Conductivity: Equal Weight (Specific)
84 % IACS
Otherwise Unclassified Properties
Base Metal Price
10 % relative
Density
2.8 g/cm3 170 lb/ft3
Embodied Carbon
7.8 kg CO2/kg material
Embodied Energy
140 MJ/kg 61 x 103 BTU/lb
Embodied Water
1040 L/kg 120 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
2.3 MJ/m3
Resilience: Unit (Modulus of Resilience)
250 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
24 points
Strength to Weight: Bending
31 points
Thermal Diffusivity
42 mm2/s
Thermal Shock Resistance
12 points
Alloy Composition
Among cast aluminum alloys, the composition of 332.0 aluminum is notable for containing comparatively high amounts of silicon (Si) and copper (Cu). Silicon is used to improve casting fluidity and lower melting temperature. It also has a strengthening effect. Copper is used to improve strength. This comes at the cost of a decrease in corrosion resistance and weldability.
| Al | 80.1 to 89 | |
| Si | 8.5 to 10.5 | |
| Cu | 2.0 to 4.0 | |
| Mg | 0.5 to 1.5 | |
| Fe | 0 to 1.2 | |
| Zn | 0 to 1.0 | |
| Mn | 0 to 0.5 | |
| Ni | 0 to 0.5 | |
| Ti | 0 to 0.25 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings
Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002