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Grade VDSiCr Steel vs. EN AC-51100 Aluminum

Grade VDSiCr steel belongs to the iron alloys classification, while EN AC-51100 aluminum belongs to the aluminum 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 grade VDSiCr steel and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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