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A384.0 Aluminum vs. SAE-AISI M1 Steel

A384.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI M1 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 A384.0 aluminum and the bottom bar is SAE-AISI M1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 330
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 550
270
Melting Completion (Liquidus), °C 610
1560
Melting Onset (Solidus), °C 510
1510
Specific Heat Capacity, J/kg-K 880
450
Thermal Conductivity, W/m-K 96
29
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 7.5
7.0
Embodied Energy, MJ/kg 140
99
Embodied Water, L/kg 1010
98

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 32
25 to 73
Strength to Weight: Bending, points 38
22 to 45
Thermal Diffusivity, mm2/s 39
8.0
Thermal Shock Resistance, points 15
23 to 66

Alloy Composition

Aluminum (Al), % 79.3 to 86.5
0
Carbon (C), % 0
0.78 to 0.88
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 3.0 to 4.5
0 to 0.25
Iron (Fe), % 0 to 1.3
81 to 84.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0 to 0.5
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 12
0.2 to 0.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.4
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0