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SAE-AISI D3 Steel vs. 204.0 Aluminum

SAE-AISI D3 steel belongs to the iron alloys classification, while 204.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 9.8 to 15
5.7 to 7.8
Fatigue Strength, MPa 310 to 940
63 to 77
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 74
27
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
230 to 340
Tensile Strength: Yield (Proof), MPa 480 to 1550
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Melting Completion (Liquidus), °C 1430
650
Melting Onset (Solidus), °C 1390
580
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 31
120
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
29 to 34
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
87 to 100

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 3.2
8.0
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 100
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
12 to 23
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 28 to 74
21 to 31
Strength to Weight: Bending, points 24 to 47
28 to 36
Thermal Diffusivity, mm2/s 8.3
46
Thermal Shock Resistance, points 23 to 63
12 to 18

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.5
Carbon (C), % 2.0 to 2.4
0
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.25
4.2 to 5.0
Iron (Fe), % 80.3 to 87
0 to 0.35
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 0.6
0 to 0.1
Nickel (Ni), % 0 to 0.3
0 to 0.050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15