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4115 Aluminum vs. 8176 Aluminum

Both 4115 aluminum and 8176 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common. There are 30 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 4115 aluminum and the bottom bar is 8176 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 1.1 to 11
15
Fatigue Strength, MPa 39 to 76
59
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 71 to 130
70
Tensile Strength: Ultimate (UTS), MPa 120 to 220
160
Tensile Strength: Yield (Proof), MPa 39 to 190
95

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
660
Melting Onset (Solidus), °C 590
650
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 160
230
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
61
Electrical Conductivity: Equal Weight (Specific), % IACS 140
200

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.1 to 10
21
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 270
66
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12 to 23
16
Strength to Weight: Bending, points 20 to 30
24
Thermal Diffusivity, mm2/s 66
93
Thermal Shock Resistance, points 5.2 to 9.9
7.0

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
98.6 to 99.6
Copper (Cu), % 0.1 to 0.5
0
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.7
0.4 to 1.0
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0.6 to 1.2
0
Silicon (Si), % 1.8 to 2.2
0.030 to 0.15
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0
0 to 0.15