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EN AC-51300 Aluminum vs. 4145 Aluminum

Both EN AC-51300 aluminum and 4145 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 EN AC-51300 aluminum and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 9.1
7.6
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
1040

Common Calculations

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

Alloy Composition

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