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4147 Aluminum vs. SAE-AISI M36 Steel

4147 aluminum belongs to the aluminum alloys classification, while SAE-AISI M36 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 4147 aluminum and the bottom bar is SAE-AISI M36 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 110
810 to 2190

Thermal Properties

Latent Heat of Fusion, J/g 570
260
Melting Completion (Liquidus), °C 580
1600
Melting Onset (Solidus), °C 560
1550
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 130
19
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
38
Density, g/cm3 2.5
8.4
Embodied Carbon, kg CO2/kg material 7.7
9.5
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 1050
140

Common Calculations

Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
23
Strength to Weight: Axial, points 12
27 to 72
Strength to Weight: Bending, points 20
23 to 44
Thermal Diffusivity, mm2/s 58
5.1
Thermal Shock Resistance, points 5.2
25 to 68

Alloy Composition

Aluminum (Al), % 85 to 88.9
0
Beryllium (Be), % 0 to 0.00030
0
Carbon (C), % 0
0.8 to 0.9
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 0.8
70.1 to 75.5
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 0
4.6 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 11 to 13
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.5 to 6.5
Vanadium (V), % 0
1.8 to 2.3
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0