AT4-6061 type I Sintered Aluminum
AT4-6061 type I is sintered 6061 aluminum in the T4 temper. To achieve this temper, the metal is solution heat-treated and naturally aged. It has the second lowest strength compared to the other variants of sintered 6061 aluminum.
The graph bars on the material properties cards below compare AT4-6061 type I 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
3.5 %
Fatigue Strength
32 MPa 4.6 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
25 GPa 3.7 x 106 psi
Tensile Strength: Ultimate (UTS)
97 MPa 14 x 103 psi
Tensile Strength: Yield (Proof)
79 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 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)
3.2 MJ/m3
Resilience: Unit (Modulus of Resilience)
46 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
51 points
Strength to Weight: Axial
10 points
Strength to Weight: Bending
18 points
Thermal Diffusivity
81 mm2/s
Thermal Shock Resistance
4.4 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