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Sintered 2014 Aluminum vs. 7178 Aluminum

Both sintered 2014 aluminum and 7178 aluminum are aluminum alloys. They have a moderately high 90% 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 2014 aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 0.5 to 3.0
4.5 to 12
Fatigue Strength, MPa 52 to 100
120 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 140 to 290
240 to 640
Tensile Strength: Yield (Proof), MPa 97 to 280
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 560
480
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
31
Electrical Conductivity: Equal Weight (Specific), % IACS 100
91

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.0
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.0 to 5.7
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 68 to 560
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 13 to 27
21 to 58
Strength to Weight: Bending, points 20 to 33
28 to 54
Thermal Diffusivity, mm2/s 51
47
Thermal Shock Resistance, points 6.2 to 13
10 to 28

Alloy Composition

Aluminum (Al), % 91.5 to 96.3
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 3.5 to 5.0
1.6 to 2.4
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 0.2 to 0.8
2.4 to 3.1
Manganese (Mn), % 0
0 to 0.3
Silicon (Si), % 0 to 1.2
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