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Grade TDSiCrV Steel vs. 1235 Aluminum

Grade TDSiCrV steel belongs to the iron alloys classification, while 1235 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 1235 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
80 to 84

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 47
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
60
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
200

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
8.3
Embodied Energy, MJ/kg 26
160
Embodied Water, L/kg 50
1190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 75
8.2 to 8.6
Strength to Weight: Bending, points 47
15 to 16
Thermal Diffusivity, mm2/s 13
93
Thermal Shock Resistance, points 63
3.6 to 3.7

Alloy Composition

Aluminum (Al), % 0
99.35 to 100
Carbon (C), % 0.5 to 0.7
0
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 96.1 to 97.8
0 to 0.65
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.4 to 0.9
0 to 0.050
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 1.2 to 1.7
0 to 0.65
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0.1 to 0.25
0 to 0.050
Zinc (Zn), % 0
0 to 0.1