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EN 1.3551 Steel vs. 850.0 Aluminum

EN 1.3551 steel belongs to the iron alloys classification, while 850.0 aluminum belongs to the aluminum alloys. There are 25 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 EN 1.3551 steel and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
45
Elastic (Young's, Tensile) Modulus, GPa 190
69
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 720
140

Thermal Properties

Latent Heat of Fusion, J/g 260
380
Maximum Temperature: Mechanical, °C 530
190
Melting Completion (Liquidus), °C 1490
650
Melting Onset (Solidus), °C 1450
370
Specific Heat Capacity, J/kg-K 460
850
Thermal Conductivity, W/m-K 36
180
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.6
47
Electrical Conductivity: Equal Weight (Specific), % IACS 9.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
14
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 4.9
8.5
Embodied Energy, MJ/kg 71
160
Embodied Water, L/kg 82
1160

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
44
Strength to Weight: Axial, points 26
12
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 9.8
69
Thermal Shock Resistance, points 21
6.1

Alloy Composition

Aluminum (Al), % 0
88.3 to 93.1
Carbon (C), % 0.77 to 0.85
0
Chromium (Cr), % 3.9 to 4.3
0
Copper (Cu), % 0 to 0.3
0.7 to 1.3
Iron (Fe), % 88.8 to 91.1
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.15 to 0.35
0 to 0.1
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 0
0.7 to 1.3
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0
Residuals, % 0
0 to 0.3