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SAE-AISI D3 Steel vs. 240.0 Aluminum

SAE-AISI D3 steel belongs to the iron alloys classification, while 240.0 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 240.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 9.8 to 15
1.0
Fatigue Strength, MPa 310 to 940
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 74
27
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
240
Tensile Strength: Yield (Proof), MPa 480 to 1550
200

Thermal Properties

Latent Heat of Fusion, J/g 270
380
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1390
520
Specific Heat Capacity, J/kg-K 480
860
Thermal Conductivity, W/m-K 31
96
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
23
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
65

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
12
Density, g/cm3 7.7
3.2
Embodied Carbon, kg CO2/kg material 3.2
8.7
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 100
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
2.2
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
43
Strength to Weight: Axial, points 28 to 74
20
Strength to Weight: Bending, points 24 to 47
26
Thermal Diffusivity, mm2/s 8.3
35
Thermal Shock Resistance, points 23 to 63
11

Alloy Composition

Aluminum (Al), % 0
81.7 to 86.9
Carbon (C), % 2.0 to 2.4
0
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.25
7.0 to 9.0
Iron (Fe), % 80.3 to 87
0 to 0.5
Magnesium (Mg), % 0
5.5 to 6.5
Manganese (Mn), % 0 to 0.6
0.3 to 0.7
Nickel (Ni), % 0 to 0.3
0.3 to 0.7
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
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