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512.0 Aluminum vs. SAE-AISI 4620 Steel

512.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 30 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 512.0 aluminum and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 50
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 2.0
16 to 27
Fatigue Strength, MPa 58
260 to 360
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 130
490 to 680
Tensile Strength: Yield (Proof), MPa 83
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 180
410
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
47
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.2
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.8
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1160
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 50
330 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 14
17 to 24
Strength to Weight: Bending, points 22
18 to 22
Thermal Diffusivity, mm2/s 60
13
Thermal Shock Resistance, points 6.1
15 to 20

Alloy Composition

Aluminum (Al), % 90.6 to 95.1
0
Carbon (C), % 0
0.17 to 0.22
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0 to 0.6
96.4 to 97.4
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0 to 0.8
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 1.4 to 2.2
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0