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SAE-AISI D3 Steel vs. EN AC-42100 Aluminum

SAE-AISI D3 steel belongs to the iron alloys classification, while EN AC-42100 aluminum belongs to the aluminum 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 SAE-AISI D3 steel and the bottom bar is EN AC-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 9.8 to 15
3.4 to 9.0
Fatigue Strength, MPa 310 to 940
76 to 82
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 74
26
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
280 to 290
Tensile Strength: Yield (Proof), MPa 480 to 1550
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Melting Completion (Liquidus), °C 1430
610
Melting Onset (Solidus), °C 1390
600
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 31
150
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
41
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 3.2
8.0
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 100
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
9.1 to 23
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 28 to 74
30 to 31
Strength to Weight: Bending, points 24 to 47
37 to 38
Thermal Diffusivity, mm2/s 8.3
66
Thermal Shock Resistance, points 23 to 63
13

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.3
Carbon (C), % 2.0 to 2.4
0
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 80.3 to 87
0 to 0.19
Magnesium (Mg), % 0
0.25 to 0.45
Manganese (Mn), % 0 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1