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4145 Aluminum vs. 6105 Aluminum

Both 4145 aluminum and 6105 aluminum are aluminum alloys. They have 87% 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 4145 aluminum and the bottom bar is 6105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
68
Elongation at Break, % 2.2
9.0 to 16
Fatigue Strength, MPa 48
95 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 69
120 to 170
Tensile Strength: Ultimate (UTS), MPa 120
190 to 280
Tensile Strength: Yield (Proof), MPa 68
120 to 270

Thermal Properties

Latent Heat of Fusion, J/g 540
410
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 100
180 to 190
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
46 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 84
150 to 170

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.3
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
25 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 31
100 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 12
20 to 29
Strength to Weight: Bending, points 19
28 to 35
Thermal Diffusivity, mm2/s 42
72 to 79
Thermal Shock Resistance, points 5.5
8.6 to 12

Alloy Composition

Aluminum (Al), % 83 to 87.4
97.2 to 99
Chromium (Cr), % 0 to 0.15
0 to 0.1
Copper (Cu), % 3.3 to 4.7
0 to 0.1
Iron (Fe), % 0 to 0.8
0 to 0.35
Magnesium (Mg), % 0 to 0.15
0.45 to 0.8
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 9.3 to 10.7
0.6 to 1.0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0
0 to 0.15