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328.0 Aluminum vs. EN 1.7703 Steel

328.0 aluminum belongs to the aluminum alloys classification, while EN 1.7703 steel belongs to the iron alloys. There are 30 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 328.0 aluminum and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 82
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.6 to 2.1
20
Fatigue Strength, MPa 55 to 80
320 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
74
Tensile Strength: Ultimate (UTS), MPa 200 to 270
670 to 690
Tensile Strength: Yield (Proof), MPa 120 to 170
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 510
250
Maximum Temperature: Mechanical, °C 180
460
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 560
1430
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 120
39
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
4.2
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 7.8
2.5
Embodied Energy, MJ/kg 140
35
Embodied Water, L/kg 1070
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.0
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 200
570 to 650
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 21 to 28
24
Strength to Weight: Bending, points 28 to 34
22
Thermal Diffusivity, mm2/s 50
11
Thermal Shock Resistance, points 9.2 to 12
19 to 20

Alloy Composition

Aluminum (Al), % 84.5 to 91.1
0
Carbon (C), % 0
0.11 to 0.15
Chromium (Cr), % 0 to 0.35
2.0 to 2.5
Copper (Cu), % 1.0 to 2.0
0 to 0.2
Iron (Fe), % 0 to 1.0
94.6 to 96.4
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 0.2 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.25
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 8.5
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.25
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35
Zinc (Zn), % 0 to 1.5
0
Residuals, % 0 to 0.5
0