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4145 Aluminum vs. 296.0 Aluminum

Both 4145 aluminum and 296.0 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 4145 aluminum and the bottom bar is 296.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 2.2
3.2 to 7.1
Fatigue Strength, MPa 48
47 to 70
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
27
Tensile Strength: Ultimate (UTS), MPa 120
260 to 270
Tensile Strength: Yield (Proof), MPa 68
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 540
420
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 590
630
Melting Onset (Solidus), °C 520
540
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 100
130 to 150
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
33 to 37
Electrical Conductivity: Equal Weight (Specific), % IACS 84
99 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 7.6
7.8
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
7.6 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 31
110 to 220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 12
24 to 25
Strength to Weight: Bending, points 19
30 to 31
Thermal Diffusivity, mm2/s 42
51 to 56
Thermal Shock Resistance, points 5.5
12

Alloy Composition


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Aluminum (Al), % 83 to 87.4
89 to 94
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
4.0 to 5.0
Iron (Fe), % 0 to 0.8
0 to 1.2
Magnesium (Mg), % 0 to 0.15
0 to 0.050
Manganese (Mn), % 0 to 0.15
0 to 0.35
Nickel (Ni), % 0
0 to 0.35
Silicon (Si), % 9.3 to 10.7
2.0 to 3.0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.2
0 to 0.5
Residuals, % 0 to 0.15
0 to 0.35