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EN AC-46300 Aluminum vs. ASTM A302 Alloy Steel

EN AC-46300 aluminum belongs to the aluminum alloys classification, while ASTM A302 alloy 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-46300 aluminum and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
20 to 23
Fatigue Strength, MPa 79
250 to 280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 200
590 to 620
Tensile Strength: Yield (Proof), MPa 110
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 490
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
39 to 51
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.2 to 7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 84
8.2 to 8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.4 to 3.0
Density, g/cm3 2.9
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5 to 1.6
Embodied Energy, MJ/kg 140
20 to 21
Embodied Water, L/kg 1060
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 89
330 to 410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 20
21 to 22
Strength to Weight: Bending, points 27
20 to 21
Thermal Diffusivity, mm2/s 47
10 to 14
Thermal Shock Resistance, points 9.1
17 to 18