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SAE-AISI T6 Steel vs. 5056 Aluminum

SAE-AISI T6 steel belongs to the iron alloys classification, while 5056 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 T6 steel and the bottom bar is 5056 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
67
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
25
Tensile Strength: Ultimate (UTS), MPa 880 to 2150
290 to 460

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Melting Completion (Liquidus), °C 1830
640
Melting Onset (Solidus), °C 1770
570
Specific Heat Capacity, J/kg-K 400
910
Thermal Conductivity, W/m-K 18
130
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 9.5
2.7
Embodied Carbon, kg CO2/kg material 11
9.0
Embodied Energy, MJ/kg 170
150
Embodied Water, L/kg 160
1180

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 26 to 63
30 to 48
Strength to Weight: Bending, points 21 to 39
36 to 50
Thermal Diffusivity, mm2/s 4.7
53
Thermal Shock Resistance, points 26 to 64
13 to 20

Alloy Composition

Aluminum (Al), % 0
93 to 95.4
Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 4.0 to 4.8
0.050 to 0.2
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 55.9 to 63.5
0 to 0.4
Magnesium (Mg), % 0
4.5 to 5.6
Manganese (Mn), % 0.2 to 0.4
0.050 to 0.2
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 18.5 to 21
0
Vanadium (V), % 1.5 to 2.1
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15

Comparable Variants