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1050A Aluminum vs. SAE-AISI P20 Steel

1050A aluminum belongs to the aluminum alloys classification, while SAE-AISI P20 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 1050A aluminum and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 68 to 170
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 650
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
45
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 59
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1200
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 6.9 to 18
19 to 37
Strength to Weight: Bending, points 14 to 25
19 to 29
Thermal Diffusivity, mm2/s 94
12
Thermal Shock Resistance, points 3.0 to 7.6
18 to 35

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0.28 to 0.4
Chromium (Cr), % 0
0.4 to 2.0
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.4
95.2 to 98.5
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0.2 to 0.8
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.070
0

Comparable Variants