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515.0 Aluminum vs. 4145 Aluminum

Both 515.0 aluminum and 4145 aluminum are aluminum alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 91% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is 515.0 aluminum and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
73
Elongation at Break, % 10
2.2
Fatigue Strength, MPa 130
48
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Shear Strength, MPa 190
69
Tensile Strength: Ultimate (UTS), MPa 280
120

Thermal Properties

Latent Heat of Fusion, J/g 470
540
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 620
590
Melting Onset (Solidus), °C 620
520
Specific Heat Capacity, J/kg-K 900
880
Thermal Expansion, µm/m-K 23
21

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.6
2.8
Embodied Carbon, kg CO2/kg material 8.4
7.6
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1120
1040

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
50
Strength to Weight: Axial, points 30
12
Strength to Weight: Bending, points 36
19
Thermal Shock Resistance, points 13
5.5

Alloy Composition

Aluminum (Al), % 93.6 to 96.6
83 to 87.4
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.2
3.3 to 4.7
Iron (Fe), % 0 to 1.3
0 to 0.8
Magnesium (Mg), % 2.5 to 4.0
0 to 0.15
Manganese (Mn), % 0.4 to 0.6
0 to 0.15
Silicon (Si), % 0.5 to 10
9.3 to 10.7
Zinc (Zn), % 0 to 0.1
0 to 0.2
Residuals, % 0
0 to 0.15