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384.0 Aluminum vs. 4115 Aluminum

Both 384.0 aluminum and 4115 aluminum are aluminum alloys. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is 384.0 aluminum and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
38 to 68
Elastic (Young's, Tensile) Modulus, GPa 74
70
Elongation at Break, % 2.5
1.1 to 11
Fatigue Strength, MPa 140
39 to 76
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 200
71 to 130
Tensile Strength: Ultimate (UTS), MPa 330
120 to 220
Tensile Strength: Yield (Proof), MPa 170
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 550
420
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 580
640
Melting Onset (Solidus), °C 530
590
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 96
160
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
41
Electrical Conductivity: Equal Weight (Specific), % IACS 69
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 7.4
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1010
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 190
11 to 270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 32
12 to 23
Strength to Weight: Bending, points 37
20 to 30
Thermal Diffusivity, mm2/s 39
66
Thermal Shock Resistance, points 15
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
94.6 to 97.4
Copper (Cu), % 3.0 to 4.5
0.1 to 0.5
Iron (Fe), % 0 to 1.3
0 to 0.7
Magnesium (Mg), % 0 to 0.1
0.1 to 0.5
Manganese (Mn), % 0 to 0.5
0.6 to 1.2
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 10.5 to 12
1.8 to 2.2
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0 to 0.2
Residuals, % 0
0 to 0.15