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EN 1.8505 Steel vs. EN AC-51500 Aluminum

EN 1.8505 steel belongs to the iron alloys classification, while EN AC-51500 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.8505 steel and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
80
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 13
5.6
Fatigue Strength, MPa 540
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 1050
280
Tensile Strength: Yield (Proof), MPa 860
160

Thermal Properties

Latent Heat of Fusion, J/g 250
430
Maximum Temperature: Mechanical, °C 440
170
Melting Completion (Liquidus), °C 1450
630
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 39
120
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
88

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.6
9.0
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 65
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
13
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 37
29
Strength to Weight: Bending, points 30
36
Thermal Diffusivity, mm2/s 11
49
Thermal Shock Resistance, points 31
13

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
89.8 to 93.1
Carbon (C), % 0.28 to 0.35
0
Chromium (Cr), % 1.5 to 1.8
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 95.4 to 97.1
0 to 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0.4 to 0.7
0.4 to 0.8
Molybdenum (Mo), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
1.8 to 2.6
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15