AT6-6061 type II Sintered Aluminum
AT6-6061 type II is sintered 6061 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 and second lowest ductility compared to the other variants of sintered 6061 aluminum.
The graph bars on the material properties cards below compare AT6-6061 type II to: otherwise unclassified 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
Elastic (Young's, Tensile) Modulus
68 GPa 9.8 x 106 psi
Elongation at Break
2.0 %
Fatigue Strength
62 MPa 9.0 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
25 GPa 3.7 x 106 psi
Tensile Strength: Ultimate (UTS)
210 MPa 30 x 103 psi
Tensile Strength: Yield (Proof)
190 MPa 28 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 1130 °F
Specific Heat Capacity
900 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
200 W/m-K 110 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
52 % IACS
Electrical Conductivity: Equal Weight (Specific)
170 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.3 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)
4.0 MJ/m3
Resilience: Unit (Modulus of Resilience)
280 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
29 points
Thermal Diffusivity
81 mm2/s
Thermal Shock Resistance
9.4 points
Alloy Composition
| Al | 96 to 99.4 | |
| Mg | 0.4 to 1.2 | |
| Si | 0.2 to 0.8 | |
| Cu | 0 to 0.5 | |
| res. | 0 to 1.5 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B595: Standard Specification for Sintered Aluminum Structural Parts
Sintering of Advanced Materials: Fundamentals and Processes, Zhigang Zak Fang (editor), 2010
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
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015