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852.0 Aluminum vs. SAE-AISI 8640 Steel

852.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 8640 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 852.0 aluminum and the bottom bar is SAE-AISI 8640 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 64
170
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.4
23
Fatigue Strength, MPa 73
270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 130
360
Tensile Strength: Ultimate (UTS), MPa 200
570
Tensile Strength: Yield (Proof), MPa 150
380

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 190
410
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 210
1420
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 180
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 3.2
7.8
Embodied Carbon, kg CO2/kg material 8.5
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 1150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.2
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160
380
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 43
24
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 65
10
Thermal Shock Resistance, points 8.7
17

Alloy Composition

Aluminum (Al), % 86.6 to 91.3
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 1.7 to 2.3
0
Iron (Fe), % 0 to 0.7
96.6 to 97.8
Magnesium (Mg), % 0.6 to 0.9
0
Manganese (Mn), % 0 to 0.1
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0.9 to 1.5
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0