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SAE-AISI M43 Steel vs. 5083 Aluminum

SAE-AISI M43 steel belongs to the iron alloys classification, while 5083 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, 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 SAE-AISI M43 steel and the bottom bar is 5083 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1550
640
Melting Onset (Solidus), °C 1500
580
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 19
120
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 8.5
8.9
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 140
1170

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 27 to 77
29 to 40
Strength to Weight: Bending, points 24 to 47
36 to 44
Thermal Diffusivity, mm2/s 5.3
48
Thermal Shock Resistance, points 25 to 71
12 to 17

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.6
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.5 to 4.3
0.050 to 0.25
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 70.8 to 76
0 to 0.4
Magnesium (Mg), % 0
4.0 to 4.9
Manganese (Mn), % 0.2 to 0.4
0.4 to 1.0
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0 to 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants