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EN AC-45000 Aluminum vs. ASTM A209 Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while ASTM A209 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-45000 aluminum and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
34
Fatigue Strength, MPa 75
180 to 200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
420 to 460
Tensile Strength: Yield (Proof), MPa 110
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 180
410
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 520
1420 to 1430
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
50
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 81
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.4
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 140
20
Embodied Water, L/kg 1070
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 80
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 17
15 to 16
Strength to Weight: Bending, points 24
16 to 17
Thermal Diffusivity, mm2/s 47
13
Thermal Shock Resistance, points 8.0
12 to 14