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SAE-AISI D3 Steel vs. 6065 Aluminum

SAE-AISI D3 steel belongs to the iron alloys classification, while 6065 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 6065 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 9.8 to 15
4.5 to 11
Fatigue Strength, MPa 310 to 940
96 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 74
26
Shear Strength, MPa 470 to 1220
190 to 230
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
310 to 400
Tensile Strength: Yield (Proof), MPa 480 to 1550
270 to 380

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
590
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 31
170
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
43
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
11
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 3.2
8.4
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 100
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
17 to 34
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 28 to 74
31 to 40
Strength to Weight: Bending, points 24 to 47
36 to 43
Thermal Diffusivity, mm2/s 8.3
67
Thermal Shock Resistance, points 23 to 63
14 to 18

Alloy Composition

Aluminum (Al), % 0
94.4 to 98.2
Bismuth (Bi), % 0
0.5 to 1.5
Carbon (C), % 2.0 to 2.4
0
Chromium (Cr), % 11 to 13.5
0 to 0.15
Copper (Cu), % 0 to 0.25
0.15 to 0.4
Iron (Fe), % 80.3 to 87
0 to 0.7
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0 to 0.6
0 to 0.15
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0.4 to 0.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.15
Residuals, % 0
0 to 0.15