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295.0 Aluminum vs. 7178 Aluminum

Both 295.0 aluminum and 7178 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 295.0 aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 2.0 to 7.2
4.5 to 12
Fatigue Strength, MPa 44 to 55
120 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 180 to 230
140 to 380
Tensile Strength: Ultimate (UTS), MPa 230 to 280
240 to 640
Tensile Strength: Yield (Proof), MPa 100 to 220
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 530
480
Specific Heat Capacity, J/kg-K 880
860
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
31
Electrical Conductivity: Equal Weight (Specific), % IACS 100
91

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 7.9
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2 to 13
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 340
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 21 to 26
21 to 58
Strength to Weight: Bending, points 27 to 32
28 to 54
Thermal Diffusivity, mm2/s 54
47
Thermal Shock Resistance, points 9.8 to 12
10 to 28

Alloy Composition

Aluminum (Al), % 91.4 to 95.3
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 4.0 to 5.0
1.6 to 2.4
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0 to 0.030
2.4 to 3.1
Manganese (Mn), % 0 to 0.35
0 to 0.3
Silicon (Si), % 0.7 to 1.5
0 to 0.4
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 0.35
6.3 to 7.3
Residuals, % 0
0 to 0.15

Comparable Variants