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EN AC-51500 Aluminum vs. ASTM A209 Steel

EN AC-51500 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-51500 aluminum and the bottom bar is ASTM A209 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 5.6
34
Fatigue Strength, MPa 120
180 to 200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 280
420 to 460
Tensile Strength: Yield (Proof), MPa 160
220 to 250

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1470
Melting Onset (Solidus), °C 590
1420 to 1430
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 120
50
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 9.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 29
15 to 16
Strength to Weight: Bending, points 36
16 to 17
Thermal Diffusivity, mm2/s 49
13
Thermal Shock Resistance, points 13
12 to 14