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Grade TDSiCrV Steel vs. 5056 Aluminum

Grade TDSiCrV steel belongs to the iron alloys classification, while 5056 aluminum belongs to the aluminum 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 grade TDSiCrV steel and the bottom bar is 5056 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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