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1050A Aluminum vs. SAE-AISI M3 Class 2 Steel

1050A aluminum belongs to the aluminum alloys classification, while SAE-AISI M3 class 2 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 68 to 170
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
1620
Melting Onset (Solidus), °C 650
1570
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 230
26
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
25
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.2
12
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 1200
110

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 6.9 to 18
26 to 74
Strength to Weight: Bending, points 14 to 25
22 to 45
Thermal Diffusivity, mm2/s 94
7.2
Thermal Shock Resistance, points 3.0 to 7.6
24 to 69

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
1.2 to 1.3
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.4
75.8 to 82.3
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.8 to 3.8
Zinc (Zn), % 0 to 0.070
0

Comparable Variants