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Grade TDSiCrV Steel vs. A242.0 Aluminum

Grade TDSiCrV steel belongs to the iron alloys classification, while A242.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (2, 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 A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
75
Elastic (Young's, Tensile) Modulus, GPa 190
73
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
27
Tensile Strength: Ultimate (UTS), MPa 2100
220

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 420
210
Melting Completion (Liquidus), °C 1440
680
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 47
140
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
12
Density, g/cm3 7.7
3.1
Embodied Carbon, kg CO2/kg material 1.9
8.3
Embodied Energy, MJ/kg 26
150
Embodied Water, L/kg 50
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 75
20
Strength to Weight: Bending, points 47
26
Thermal Diffusivity, mm2/s 13
52
Thermal Shock Resistance, points 63
9.3

Alloy Composition

Aluminum (Al), % 0
89.3 to 93.1
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0.15 to 0.25
Copper (Cu), % 0 to 0.1
3.7 to 4.5
Iron (Fe), % 96.1 to 97.8
0 to 0.8
Magnesium (Mg), % 0
1.2 to 1.7
Manganese (Mn), % 0.4 to 0.9
0 to 0.1
Nickel (Ni), % 0
1.8 to 2.3
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 1.2 to 1.7
0 to 0.6
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0.070 to 0.2
Vanadium (V), % 0.1 to 0.25
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15