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4343 Aluminum vs. SAE-AISI M62 Steel

4343 aluminum belongs to the aluminum alloys classification, while SAE-AISI M62 steel belongs to the iron alloys. There are 19 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 4343 aluminum and the bottom bar is SAE-AISI M62 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
79
Tensile Strength: Ultimate (UTS), MPa 110
830 to 2440

Thermal Properties

Latent Heat of Fusion, J/g 510
260
Melting Completion (Liquidus), °C 620
1650
Melting Onset (Solidus), °C 580
1600
Specific Heat Capacity, J/kg-K 900
430
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.6
8.5
Embodied Carbon, kg CO2/kg material 7.9
10
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
110

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
23
Strength to Weight: Axial, points 12
27 to 80
Strength to Weight: Bending, points 20
23 to 47
Thermal Shock Resistance, points 5.2
24 to 71

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0
Carbon (C), % 0
1.3 to 1.4
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.8
73.6 to 77.4
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 0
10 to 11
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 6.8 to 8.2
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.8 to 6.5
Vanadium (V), % 0
1.8 to 2.1
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0