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B390.0 Aluminum vs. EN 1.7703 Steel

B390.0 aluminum belongs to the aluminum alloys classification, while EN 1.7703 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 B390.0 aluminum and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 0.88
20
Fatigue Strength, MPa 170
320 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 29
74
Tensile Strength: Ultimate (UTS), MPa 320
670 to 690
Tensile Strength: Yield (Proof), MPa 250
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 640
250
Maximum Temperature: Mechanical, °C 170
460
Melting Completion (Liquidus), °C 580
1470
Melting Onset (Solidus), °C 580
1430
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
39
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.2
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 7.3
2.5
Embodied Energy, MJ/kg 130
35
Embodied Water, L/kg 940
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 410
570 to 650
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 32
24
Strength to Weight: Bending, points 38
22
Thermal Diffusivity, mm2/s 55
11
Thermal Shock Resistance, points 15
19 to 20

Alloy Composition

Aluminum (Al), % 72.7 to 79.6
0
Carbon (C), % 0
0.11 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 4.0 to 5.0
0 to 0.2
Iron (Fe), % 0 to 1.3
94.6 to 96.4
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.1
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), % 16 to 18
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.1
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.2
0