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EN AC-46400 Aluminum vs. ASTM A299 Steel

EN AC-46400 aluminum belongs to the aluminum alloys classification, while ASTM A299 steel belongs to the iron 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 EN AC-46400 aluminum and the bottom bar is ASTM A299 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77 to 120
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1 to 1.7
21 to 22
Fatigue Strength, MPa 75 to 85
230 to 250
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 170 to 310
590 to 620
Tensile Strength: Yield (Proof), MPa 110 to 270
330 to 360

Thermal Properties

Latent Heat of Fusion, J/g 520
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1070
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7 to 4.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 82 to 500
290 to 350
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 18 to 32
21 to 22
Strength to Weight: Bending, points 26 to 38
20 to 21
Thermal Diffusivity, mm2/s 55
14
Thermal Shock Resistance, points 7.8 to 14
17 to 18