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EN AC-45500 Aluminum vs. ACI-ASTM CK35MN Steel

EN AC-45500 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CK35MN steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-45500 aluminum and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
190
Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 2.8
40
Fatigue Strength, MPa 80
270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 320
650
Tensile Strength: Yield (Proof), MPa 250
310

Thermal Properties

Latent Heat of Fusion, J/g 500
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.6
8.0
Embodied Carbon, kg CO2/kg material 8.0
5.9
Embodied Energy, MJ/kg 150
81
Embodied Water, L/kg 1110
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.2
210
Resilience: Unit (Modulus of Resilience), kJ/m3 430
240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 34
22
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 65
3.3
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 90.6 to 93.1
0
Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0.2 to 0.7
0 to 0.4
Iron (Fe), % 0 to 0.25
43.4 to 51.8
Magnesium (Mg), % 0.2 to 0.45
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 6.8
Nickel (Ni), % 0
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 6.5 to 7.5
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0