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EN AC-44000 Aluminum vs. SAE-AISI M2 Steel

EN AC-44000 aluminum belongs to the aluminum alloys classification, while SAE-AISI M2 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 EN AC-44000 aluminum and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 560
260
Melting Completion (Liquidus), °C 590
1610
Melting Onset (Solidus), °C 590
1570
Specific Heat Capacity, J/kg-K 910
440
Thermal Conductivity, W/m-K 140
22
Thermal Expansion, µm/m-K 21
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.5
8.4
Embodied Carbon, kg CO2/kg material 7.8
8.8
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1070
98

Common Calculations

Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
23
Strength to Weight: Axial, points 20
25 to 71
Strength to Weight: Bending, points 28
22 to 44
Thermal Diffusivity, mm2/s 61
5.9
Thermal Shock Resistance, points 8.4
27 to 76

Alloy Composition


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Aluminum (Al), % 87.1 to 90
0
Carbon (C), % 0
0.78 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 0 to 0.19
78.5 to 83.4
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10 to 11.8
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0