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336.0 Aluminum vs. SAE-AISI M2 Steel

336.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI M2 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 336.0 aluminum and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 250 to 320
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 570
260
Melting Completion (Liquidus), °C 570
1610
Melting Onset (Solidus), °C 540
1570
Specific Heat Capacity, J/kg-K 890
440
Thermal Conductivity, W/m-K 120
22
Thermal Expansion, µm/m-K 19
10

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 2.8
8.4
Embodied Carbon, kg CO2/kg material 7.9
8.8
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 1010
98

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
23
Strength to Weight: Axial, points 25 to 32
25 to 71
Strength to Weight: Bending, points 32 to 38
22 to 44
Thermal Diffusivity, mm2/s 48
5.9
Thermal Shock Resistance, points 12 to 16
27 to 76

Alloy Composition

Aluminum (Al), % 79.1 to 85.8
0
Carbon (C), % 0
0.78 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0.5 to 1.5
0 to 0.25
Iron (Fe), % 0 to 1.2
78.5 to 83.4
Magnesium (Mg), % 0.7 to 1.3
0
Manganese (Mn), % 0 to 0.35
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 2.0 to 3.0
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
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2
Zinc (Zn), % 0 to 0.35
0