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ASTM A414 Steel vs. EN AC-51500 Aluminum

ASTM A414 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 (1, 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 ASTM A414 steel and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 180
80
Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 15 to 26
5.6
Fatigue Strength, MPa 140 to 260
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 360 to 590
280
Tensile Strength: Yield (Proof), MPa 190 to 350
160

Thermal Properties

Latent Heat of Fusion, J/g 250
430
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 49 to 50
120
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.3
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.4
88

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.8 to 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
9.0
Embodied Energy, MJ/kg 20 to 22
150
Embodied Water, L/kg 48
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 130
13
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 330
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 13 to 21
29
Strength to Weight: Bending, points 14 to 20
36
Thermal Diffusivity, mm2/s 13
49
Thermal Shock Resistance, points 11 to 17
13