711.0 (711.0-T1, ZC60A, A07110, formerly C712.0) Cast Aluminum
711.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the T1 temper. To achieve this temper, the metal is naturally aged until it meets standard mechanical property requirements. 711.0 is the Aluminum Association (AA) designation for this material. A07110 is the UNS number. Additionally, the SAE designation is 314. Older literature may refer to this material as ASTM ZC60A or C721.0.
The graph bars on the material properties cards below compare 711.0 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
70
Elastic (Young's, Tensile) Modulus
71 GPa 10 x 106 psi
Elongation at Break
7.8 %
Fatigue Strength
100 MPa 15 x 103 psi
Poisson's Ratio
0.32
Shear Modulus
27 GPa 3.9 x 106 psi
Tensile Strength: Ultimate (UTS)
220 MPa 31 x 103 psi
Tensile Strength: Yield (Proof)
140 MPa 21 x 103 psi
Thermal Properties
Latent Heat of Fusion
380 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
610 °C 1130 °F
Specific Heat Capacity
860 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
160 W/m-K 92 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
3.0 g/cm3 190 lb/ft3
Embodied Carbon
7.9 kg CO2/kg material
Embodied Energy
150 MJ/kg 63 x 103 BTU/lb
Embodied Water
1120 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
15 MJ/m3
Resilience: Unit (Modulus of Resilience)
140 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
26 points
Thermal Diffusivity
61 mm2/s
Thermal Shock Resistance
9.3 points
Alloy Composition
Among cast aluminum alloys, the composition of 711.0 aluminum is notable for containing comparatively high amounts of iron (Fe) and zinc (Zn). Most of the time, iron is an impurity in aluminum alloys. However, it may be added in quantity to improve strength (particularly at high temperatures) without much impact on electrical properties. Zinc is used to achieve significant increases in strength, at the cost of increased susceptibility to stress corrosion cracking. Among other things, this limits weldability.
| Al | 89.8 to 92.7 | |
| Zn | 6.0 to 7.0 | |
| Fe | 0.7 to 1.4 | |
| Cu | 0.35 to 0.65 | |
| Mg | 0.25 to 0.45 | |
| Si | 0 to 0.3 | |
| Ti | 0 to 0.2 | |
| Mn | 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
ASTM B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings
Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002
ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993