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EN AC-46400 Aluminum vs. SAE-AISI T15 Steel

EN AC-46400 aluminum belongs to the aluminum alloys classification, while SAE-AISI T15 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 EN AC-46400 aluminum and the bottom bar is SAE-AISI T15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 170 to 310
830 to 2240

Thermal Properties

Latent Heat of Fusion, J/g 520
250
Melting Completion (Liquidus), °C 610
1690
Melting Onset (Solidus), °C 570
1640
Specific Heat Capacity, J/kg-K 890
430
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
43
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 7.8
16
Embodied Energy, MJ/kg 150
250
Embodied Water, L/kg 1070
140

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
22
Strength to Weight: Axial, points 18 to 32
26 to 71
Strength to Weight: Bending, points 26 to 38
22 to 43
Thermal Diffusivity, mm2/s 55
5.6
Thermal Shock Resistance, points 7.8 to 14
26 to 70

Alloy Composition

Aluminum (Al), % 85.4 to 90.5
0
Carbon (C), % 0
1.5 to 1.6
Chromium (Cr), % 0
3.8 to 5.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 0.8 to 1.3
0 to 0.25
Iron (Fe), % 0 to 0.8
67.5 to 73.5
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.25 to 0.65
0
Manganese (Mn), % 0.15 to 0.55
0.15 to 0.4
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.2
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 8.3 to 9.7
0.15 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
11.8 to 13
Vanadium (V), % 0
4.5 to 5.3
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.25
0