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380.0 Aluminum vs. EN 1.8821 Steel

380.0 aluminum belongs to the aluminum alloys classification, while EN 1.8821 steel belongs to the iron alloys. There are 31 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 380.0 aluminum and the bottom bar is EN 1.8821 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
160
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
25
Fatigue Strength, MPa 140
280
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Shear Strength, MPa 190
340
Tensile Strength: Ultimate (UTS), MPa 320
530
Tensile Strength: Yield (Proof), MPa 160
390

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 100
49
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 83
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.3
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 1040
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 36
19
Thermal Diffusivity, mm2/s 40
13
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0.020 to 0.030
Carbon (C), % 0
0 to 0.14
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 2.0
96.8 to 99.98
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 9.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0