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Grade TDC Steel vs. A357.0 Aluminum

Grade TDC steel belongs to the iron alloys classification, while A357.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 TDC steel and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
100
Elastic (Young's, Tensile) Modulus, GPa 190
70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 1700
350

Thermal Properties

Latent Heat of Fusion, J/g 250
500
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 51
160
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
12
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
8.2
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1110

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 60
38
Strength to Weight: Bending, points 40
43
Thermal Diffusivity, mm2/s 14
68
Thermal Shock Resistance, points 50
17

Alloy Composition

Aluminum (Al), % 0
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0 to 0.2
Iron (Fe), % 98 to 99.4
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0.5 to 1.2
0 to 0.1
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.35
6.5 to 7.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0.040 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15