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Grade TDSiCrV Steel vs. 5059 Aluminum

Grade TDSiCrV steel belongs to the iron alloys classification, while 5059 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 5059 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 2100
350 to 410

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 420
210
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1400
510
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 47
110
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
95

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
9.1
Embodied Energy, MJ/kg 26
160
Embodied Water, L/kg 50
1160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 75
36 to 42
Strength to Weight: Bending, points 47
41 to 45
Thermal Diffusivity, mm2/s 13
44
Thermal Shock Resistance, points 63
16 to 18

Alloy Composition

Aluminum (Al), % 0
89.9 to 94
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0 to 0.25
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 96.1 to 97.8
0 to 0.5
Magnesium (Mg), % 0
5.0 to 6.0
Manganese (Mn), % 0.4 to 0.9
0.6 to 1.2
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 1.2 to 1.7
0 to 0.45
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
0.4 to 0.9
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15