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4145 Aluminum vs. 707.0 Aluminum

Both 4145 aluminum and 707.0 aluminum are aluminum alloys. They have 86% 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 707.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
70
Elongation at Break, % 2.2
1.7 to 3.4
Fatigue Strength, MPa 48
75 to 140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Tensile Strength: Ultimate (UTS), MPa 120
270 to 300
Tensile Strength: Yield (Proof), MPa 68
170 to 250

Thermal Properties

Latent Heat of Fusion, J/g 540
380
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 590
630
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 21
24

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.8
2.9
Embodied Carbon, kg CO2/kg material 7.6
8.3
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
4.3 to 8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 31
210 to 430
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 12
26 to 29
Strength to Weight: Bending, points 19
32 to 34
Thermal Diffusivity, mm2/s 42
58
Thermal Shock Resistance, points 5.5
12 to 13

Alloy Composition


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Aluminum (Al), % 83 to 87.4
90.5 to 93.6
Chromium (Cr), % 0 to 0.15
0.2 to 0.4
Copper (Cu), % 3.3 to 4.7
0 to 0.2
Iron (Fe), % 0 to 0.8
0 to 0.8
Magnesium (Mg), % 0 to 0.15
1.8 to 2.4
Manganese (Mn), % 0 to 0.15
0.4 to 0.6
Silicon (Si), % 9.3 to 10.7
0 to 0.2
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.2
4.0 to 4.5
Residuals, % 0 to 0.15
0 to 0.15