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EN AC-51100 Aluminum vs. Grade VDSiCr Steel

EN AC-51100 aluminum belongs to the aluminum alloys classification, while grade VDSiCr steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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-51100 aluminum and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 57
590
Elastic (Young's, Tensile) Modulus, GPa 68
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 160
1950

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 620
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
46
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.7
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1180
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 17
70
Strength to Weight: Bending, points 25
45
Thermal Diffusivity, mm2/s 53
12
Thermal Shock Resistance, points 7.3
58

Alloy Composition

Aluminum (Al), % 94.5 to 97.5
0
Carbon (C), % 0
0.5 to 0.6
Chromium (Cr), % 0
0.5 to 0.8
Copper (Cu), % 0 to 0.050
0 to 0.060
Iron (Fe), % 0 to 0.55
96.6 to 97.8
Magnesium (Mg), % 2.5 to 3.5
0
Manganese (Mn), % 0 to 0.45
0.5 to 0.9
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.55
1.2 to 1.6
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0