201.0-T6 Cast Aluminum
201.0-T6 aluminum is 201.0 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. The graph bars on the material properties cards below compare 201.0-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
140
Elastic (Young's, Tensile) Modulus
71 GPa 10 x 106 psi
Elongation at Break
7.2 %
Fatigue Strength
150 MPa 21 x 103 psi
Impact Strength: V-Notched Charpy
10 J 7.4 ft-lb
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Shear Strength
290 MPa 42 x 103 psi
Tensile Strength: Ultimate (UTS)
460 MPa 67 x 103 psi
Tensile Strength: Yield (Proof)
390 MPa 57 x 103 psi
Thermal Properties
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
170 °C 340 °F
Melting Completion (Liquidus)
650 °C 1200 °F
Melting Onset (Solidus)
570 °C 1060 °F
Solidification (Pattern Maker's) Shrinkage
1.3 %
Specific Heat Capacity
870 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
120 W/m-K 70 BTU/h-ft-°F
Thermal Expansion
19 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
30 % IACS
Electrical Conductivity: Equal Weight (Specific)
87 % IACS
Otherwise Unclassified Properties
Base Metal Price
38 % relative
Calomel Potential
-670 mV
Density
3.1 g/cm3 190 lb/ft3
Embodied Carbon
8.7 kg CO2/kg material
Embodied Energy
160 MJ/kg 69 x 103 BTU/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
32 MJ/m3
Resilience: Unit (Modulus of Resilience)
1100 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
42 points
Strength to Weight: Bending
43 points
Thermal Diffusivity
45 mm2/s
Thermal Shock Resistance
24 points
Alloy Composition
| Al | 92.1 to 95.1 | |
| Cu | 4.0 to 5.2 | |
| Ag | 0.4 to 1.0 | |
| Mg | 0.15 to 0.55 | |
| Mn | 0.2 to 0.5 | |
| Ti | 0.15 to 0.35 | |
| Fe | 0 to 0.15 | |
| Si | 0 to 0.1 | |
| res. | 0 to 0.1 |
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 B26: Standard Specification for Aluminum-Alloy Sand Castings
Handbook of Aluminum Bonding Technology and Data, J. D. Minford, 1993
Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012
ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993