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5056 Aluminum vs. Grade TDSiCrV Steel

5056 aluminum belongs to the aluminum alloys classification, while grade TDSiCrV steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 grade TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
80
Tensile Strength: Ultimate (UTS), MPa 290 to 460
2100

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 190
420
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 130
47
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 9.0
1.9
Embodied Energy, MJ/kg 150
26
Embodied Water, L/kg 1180
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 30 to 48
75
Strength to Weight: Bending, points 36 to 50
47
Thermal Diffusivity, mm2/s 53
13
Thermal Shock Resistance, points 13 to 20
63

Alloy Composition

Aluminum (Al), % 93 to 95.4
0
Carbon (C), % 0
0.5 to 0.7
Chromium (Cr), % 0.050 to 0.2
0.5 to 1.0
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0 to 0.4
96.1 to 97.8
Magnesium (Mg), % 4.5 to 5.6
0
Manganese (Mn), % 0.050 to 0.2
0.4 to 0.9
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.3
1.2 to 1.7
Sulfur (S), % 0
0 to 0.020
Vanadium (V), % 0
0.1 to 0.25
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0