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380.0 Aluminum vs. EN 1.7703 Steel

380.0 aluminum belongs to the aluminum alloys classification, while EN 1.7703 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
20
Fatigue Strength, MPa 140
320 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
74
Shear Strength, MPa 190
420 to 430
Tensile Strength: Ultimate (UTS), MPa 320
670 to 690
Tensile Strength: Yield (Proof), MPa 160
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 170
460
Melting Completion (Liquidus), °C 590
1470
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 100
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 83
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
4.2
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
2.5
Embodied Energy, MJ/kg 140
35
Embodied Water, L/kg 1040
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
570 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 31
24
Strength to Weight: Bending, points 36
22
Thermal Diffusivity, mm2/s 40
11
Thermal Shock Resistance, points 14
19 to 20

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0.11 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 3.0 to 4.0
0 to 0.2
Iron (Fe), % 0 to 2.0
94.6 to 96.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.5
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 7.5 to 9.5
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0