514.0 (514.0-F, LM5, G4A, A05140) Cast Aluminum
514.0 aluminum is an aluminum alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 514.0 is the Aluminum Association (AA) designation for this material. LM5 is the British Standard (BS) designation. A05140 is the UNS number. Additionally, the SAE designation is 320. Older literature may refer to this material as ASTM G4A, but this is now discouraged.
The graph bars on the material properties cards below compare 514.0 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
50
Elastic (Young's, Tensile) Modulus
68 GPa 9.8 x 106 psi
Elongation at Break
7.3 %
Fatigue Strength
48 MPa 7.0 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
25 GPa 3.7 x 106 psi
Shear Strength
140 MPa 20 x 103 psi
Tensile Strength: Ultimate (UTS)
180 MPa 26 x 103 psi
Tensile Strength: Yield (Proof)
74 MPa 11 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
640 °C 1180 °F
Melting Onset (Solidus)
610 °C 1120 °F
Solidification (Pattern Maker's) Shrinkage
1.3 %
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
140 W/m-K 80 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
35 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.9 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1180 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
11 MJ/m3
Resilience: Unit (Modulus of Resilience)
41 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
26 points
Thermal Diffusivity
57 mm2/s
Thermal Shock Resistance
7.9 points
Alloy Composition
Among cast aluminum alloys, the composition of 514.0 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.
| Al | 93.6 to 96.5 | |
| Mg | 3.5 to 4.5 | |
| Fe | 0 to 0.5 | |
| Mn | 0 to 0.35 | |
| Si | 0 to 0.35 | |
| Ti | 0 to 0.25 | |
| Zn | 0 to 0.15 | |
| Cu | 0 to 0.15 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings
ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993