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4145 Aluminum vs. EN AC-51300 Aluminum

Both 4145 aluminum and EN AC-51300 aluminum are aluminum alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. 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 EN AC-51300 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
67
Elongation at Break, % 2.2
3.7
Fatigue Strength, MPa 48
78
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
25
Tensile Strength: Ultimate (UTS), MPa 120
190
Tensile Strength: Yield (Proof), MPa 68
110

Thermal Properties

Latent Heat of Fusion, J/g 540
400
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 520
600
Specific Heat Capacity, J/kg-K 880
910
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 21
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
31
Electrical Conductivity: Equal Weight (Specific), % IACS 84
100

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
9.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 31
87
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 12
20
Strength to Weight: Bending, points 19
28
Thermal Diffusivity, mm2/s 42
45
Thermal Shock Resistance, points 5.5
8.6

Alloy Composition


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Aluminum (Al), % 83 to 87.4
91.4 to 95.5
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
0 to 0.1
Iron (Fe), % 0 to 0.8
0 to 0.55
Magnesium (Mg), % 0 to 0.15
4.5 to 6.5
Manganese (Mn), % 0 to 0.15
0 to 0.45
Silicon (Si), % 9.3 to 10.7
0 to 0.55
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15