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EN AC-44100 Aluminum vs. SAE-AISI D3 Steel

EN AC-44100 aluminum belongs to the aluminum alloys classification, while SAE-AISI D3 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN AC-44100 aluminum and the bottom bar is SAE-AISI D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 4.9
9.8 to 15
Fatigue Strength, MPa 64
310 to 940
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
74
Tensile Strength: Ultimate (UTS), MPa 180
770 to 2050
Tensile Strength: Yield (Proof), MPa 87
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 580
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
31
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.5
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.2
Embodied Energy, MJ/kg 140
48
Embodied Water, L/kg 1050
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.1
97 to 180
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
25
Strength to Weight: Axial, points 19
28 to 74
Strength to Weight: Bending, points 27
24 to 47
Thermal Diffusivity, mm2/s 58
8.3
Thermal Shock Resistance, points 8.2
23 to 63

Alloy Composition

Aluminum (Al), % 84.4 to 89.5
0
Carbon (C), % 0
2.0 to 2.4
Chromium (Cr), % 0
11 to 13.5
Copper (Cu), % 0 to 0.15
0 to 0.25
Iron (Fe), % 0 to 0.65
80.3 to 87
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.55
0 to 0.6
Nickel (Ni), % 0 to 0.1
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0