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EN AC-46300 Aluminum vs. ASTM A372 Grade L Steel

EN AC-46300 aluminum belongs to the aluminum alloys classification, while ASTM A372 grade L 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 A372 grade L steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
350
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
14
Fatigue Strength, MPa 79
670
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 200
1160
Tensile Strength: Yield (Proof), MPa 110
1040

Thermal Properties

Latent Heat of Fusion, J/g 490
250
Maximum Temperature: Mechanical, °C 170
430
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
44
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 84
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.5
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.7
Embodied Energy, MJ/kg 140
22
Embodied Water, L/kg 1060
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
150
Resilience: Unit (Modulus of Resilience), kJ/m3 89
2890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 20
41
Strength to Weight: Bending, points 27
31
Thermal Diffusivity, mm2/s 47
12
Thermal Shock Resistance, points 9.1
34

Alloy Composition

Aluminum (Al), % 84 to 90
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 0.9
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.8
95.2 to 96.3
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.2 to 0.65
0.6 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.3
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 6.5 to 8.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.65
0
Residuals, % 0 to 0.55
0