MakeItFrom.com
Menu (ESC)

2017A Aluminum vs. Grade TDSiCr Steel

2017A aluminum belongs to the aluminum alloys classification, while grade TDSiCr steel belongs to the iron 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 2017A aluminum and the bottom bar is grade TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 200 to 460
1950

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 220
410
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 510
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 150
46
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.2
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.2
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1140
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 19 to 42
70
Strength to Weight: Bending, points 26 to 44
45
Thermal Diffusivity, mm2/s 56
12
Thermal Shock Resistance, points 8.9 to 20
58

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0 to 0.1
0.5 to 0.8
Copper (Cu), % 3.5 to 4.5
0 to 0.1
Iron (Fe), % 0 to 0.7
96.6 to 97.8
Magnesium (Mg), % 0.4 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0.5 to 0.9
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.8
1.2 to 1.6
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0