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850.0 Aluminum vs. SAE-AISI D3 Steel

850.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI D3 steel belongs to the iron alloys. There are 28 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 850.0 aluminum and the bottom bar is SAE-AISI D3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 7.9
9.8 to 15
Fatigue Strength, MPa 59
310 to 940
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
74
Shear Strength, MPa 100
470 to 1220
Tensile Strength: Ultimate (UTS), MPa 140
770 to 2050
Tensile Strength: Yield (Proof), MPa 76
480 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 370
1390
Specific Heat Capacity, J/kg-K 850
480
Thermal Conductivity, W/m-K 180
31
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
8.0
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 8.5
3.2
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 1160
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
97 to 180
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 12
28 to 74
Strength to Weight: Bending, points 19
24 to 47
Thermal Diffusivity, mm2/s 69
8.3
Thermal Shock Resistance, points 6.1
23 to 63

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
2.0 to 2.4
Chromium (Cr), % 0
11 to 13.5
Copper (Cu), % 0.7 to 1.3
0 to 0.25
Iron (Fe), % 0 to 0.7
80.3 to 87
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 0.6
Nickel (Ni), % 0.7 to 1.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
0 to 1.0
Vanadium (V), % 0
0 to 1.0
Residuals, % 0 to 0.3
0