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Sintered 6061 Aluminum vs. 7178 Aluminum

Both sintered 6061 aluminum and 7178 aluminum are aluminum alloys. They have 89% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is sintered 6061 aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 0.5 to 6.0
4.5 to 12
Fatigue Strength, MPa 32 to 62
120 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
27
Tensile Strength: Ultimate (UTS), MPa 83 to 210
240 to 640
Tensile Strength: Yield (Proof), MPa 62 to 190
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 610
480
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 200
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 52
31
Electrical Conductivity: Equal Weight (Specific), % IACS 170
91

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 0.68 to 7.0
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 280
110 to 2220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
45
Strength to Weight: Axial, points 8.6 to 21
21 to 58
Strength to Weight: Bending, points 16 to 29
28 to 54
Thermal Diffusivity, mm2/s 81
47
Thermal Shock Resistance, points 3.8 to 9.4
10 to 28

Alloy Composition

Aluminum (Al), % 96 to 99.4
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 0 to 0.5
1.6 to 2.4
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 0.4 to 1.2
2.4 to 3.1
Manganese (Mn), % 0
0 to 0.3
Silicon (Si), % 0.2 to 0.8
0 to 0.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
6.3 to 7.3
Residuals, % 0
0 to 0.15

Comparable Variants