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204.0 Aluminum vs. EN 1.8903 Steel

204.0 aluminum belongs to the aluminum alloys classification, while EN 1.8903 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 204.0 aluminum and the bottom bar is EN 1.8903 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90 to 120
190
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.7 to 7.8
19
Fatigue Strength, MPa 63 to 77
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 230 to 340
630
Tensile Strength: Yield (Proof), MPa 180 to 220
480

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
46
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29 to 34
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 100
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.6
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 350
620
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 21 to 31
22
Strength to Weight: Bending, points 28 to 36
21
Thermal Diffusivity, mm2/s 46
12
Thermal Shock Resistance, points 12 to 18
18

Alloy Composition

Aluminum (Al), % 93.4 to 95.5
0 to 0.015
Carbon (C), % 0
0 to 0.22
Chromium (Cr), % 0
0 to 0.35
Copper (Cu), % 4.2 to 5.0
0 to 0.6
Iron (Fe), % 0 to 0.35
95 to 99.05
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0 to 0.1
1.0 to 1.8
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0 to 0.050
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.027
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.65
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0 to 0.060
Vanadium (V), % 0
0 to 0.22
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0