319.0-T6 Cast Aluminum
319.0-T6 aluminum is 319.0 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. It has the highest strength compared to the other variants of 319.0 aluminum.
The graph bars on the material properties cards below compare 319.0-T6 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
84
Elastic (Young's, Tensile) Modulus
72 GPa 10 x 106 psi
Elongation at Break
1.8 %
Fatigue Strength
80 MPa 12 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Shear Strength
210 MPa 30 x 103 psi
Tensile Strength: Ultimate (UTS)
240 MPa 35 x 103 psi
Tensile Strength: Yield (Proof)
160 MPa 23 x 103 psi
Thermal Properties
Latent Heat of Fusion
480 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
600 °C 1120 °F
Melting Onset (Solidus)
540 °C 1000 °F
Solidification (Pattern Maker's) Shrinkage
1.3 %
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
110 W/m-K 65 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
27 % IACS
Electrical Conductivity: Equal Weight (Specific)
84 % IACS
Otherwise Unclassified Properties
Base Metal Price
10 % relative
Density
2.9 g/cm3 180 lb/ft3
Embodied Carbon
7.7 kg CO2/kg material
Embodied Energy
140 MJ/kg 62 x 103 BTU/lb
Embodied Water
1080 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
3.9 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
48 points
Strength to Weight: Axial
24 points
Strength to Weight: Bending
30 points
Thermal Diffusivity
44 mm2/s
Thermal Shock Resistance
11 points
Alloy Composition
| Al | 85.8 to 91.5 | |
| Si | 5.5 to 6.5 | |
| Cu | 3.0 to 4.0 | |
| Fe | 0 to 1.0 | |
| Zn | 0 to 1.0 | |
| Mn | 0 to 0.5 | |
| Ni | 0 to 0.35 | |
| Ti | 0 to 0.25 | |
| Mg | 0 to 0.1 | |
| res. | 0 to 0.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B618: Standard Specification for Aluminum-Alloy Investment Castings
ASTM B108: Standard Specification for Aluminum-Alloy Permanent Mold Castings
ASTM B26: Standard Specification for Aluminum-Alloy Sand Castings
Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002
Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003
Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993