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4145 Aluminum vs. 712.0 Aluminum

Both 4145 aluminum and 712.0 aluminum are aluminum alloys. They have 86% of their average alloy composition in common. There are 30 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 712.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
70
Elongation at Break, % 2.2
4.5 to 4.7
Fatigue Strength, MPa 48
140 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
27
Shear Strength, MPa 69
180
Tensile Strength: Ultimate (UTS), MPa 120
250 to 260
Tensile Strength: Yield (Proof), MPa 68
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 540
380
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
610
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 100
160
Thermal Expansion, µm/m-K 21
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
40
Electrical Conductivity: Equal Weight (Specific), % IACS 84
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.8
3.0
Embodied Carbon, kg CO2/kg material 7.6
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
11
Resilience: Unit (Modulus of Resilience), kJ/m3 31
240 to 270
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
62
Thermal Shock Resistance, points 5.5
11

Alloy Composition


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Aluminum (Al), % 83 to 87.4
90.7 to 94
Chromium (Cr), % 0 to 0.15
0.4 to 0.6
Copper (Cu), % 3.3 to 4.7
0 to 0.25
Iron (Fe), % 0 to 0.8
0 to 0.5
Magnesium (Mg), % 0 to 0.15
0.5 to 0.65
Manganese (Mn), % 0 to 0.15
0 to 0.1
Silicon (Si), % 9.3 to 10.7
0 to 0.3
Titanium (Ti), % 0
0.15 to 0.25
Zinc (Zn), % 0 to 0.2
5.0 to 6.5
Residuals, % 0 to 0.15
0 to 0.2