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5056 Aluminum vs. SAE-AISI T5 Steel

5056 aluminum belongs to the aluminum alloys classification, while SAE-AISI T5 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 5056 aluminum and the bottom bar is SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
80
Tensile Strength: Ultimate (UTS), MPa 290 to 460
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Melting Completion (Liquidus), °C 640
1810
Melting Onset (Solidus), °C 570
1750
Specific Heat Capacity, J/kg-K 910
410
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 24
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
60
Density, g/cm3 2.7
9.4
Embodied Carbon, kg CO2/kg material 9.0
11
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
140

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 51
21
Strength to Weight: Axial, points 30 to 48
25 to 63
Strength to Weight: Bending, points 36 to 50
21 to 39
Thermal Diffusivity, mm2/s 53
5.5
Thermal Shock Resistance, points 13 to 20
26 to 66

Alloy Composition

Aluminum (Al), % 93 to 95.4
0
Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0.050 to 0.2
3.8 to 5.0
Cobalt (Co), % 0
7.0 to 9.5
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.4
60.6 to 68.3
Magnesium (Mg), % 4.5 to 5.6
0
Manganese (Mn), % 0.050 to 0.2
0.2 to 0.4
Molybdenum (Mo), % 0
0.5 to 1.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.3
0.2 to 0.4
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0

Comparable Variants