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EN AC-21100 Aluminum vs. EN 1.5502 Steel

EN AC-21100 aluminum belongs to the aluminum alloys classification, while EN 1.5502 steel belongs to the iron alloys. There are 30 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 EN AC-21100 aluminum and the bottom bar is EN 1.5502 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
120 to 160
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 6.2 to 7.3
12 to 20
Fatigue Strength, MPa 79 to 87
190 to 290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 340 to 350
400 to 1380
Tensile Strength: Yield (Proof), MPa 210 to 240
270 to 440

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
52
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 100
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
41 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
200 to 520
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 31 to 33
14 to 49
Strength to Weight: Bending, points 36 to 37
15 to 35
Thermal Diffusivity, mm2/s 48
14
Thermal Shock Resistance, points 15
12 to 40

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 4.2 to 5.2
0 to 0.25
Iron (Fe), % 0 to 0.19
98 to 99.249
Manganese (Mn), % 0 to 0.55
0.6 to 0.9
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.18
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0