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SAE-AISI M36 Steel vs. 4147 Aluminum

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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