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EN AC-42200 Aluminum vs. EN 1.7221 Steel

EN AC-42200 aluminum belongs to the aluminum alloys classification, while EN 1.7221 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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-42200 aluminum and the bottom bar is EN 1.7221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89 to 100
200 to 230
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.0 to 6.7
11 to 17
Fatigue Strength, MPa 86 to 90
290 to 390
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 320
650 to 780
Tensile Strength: Yield (Proof), MPa 240 to 260
430 to 630

Thermal Properties

Latent Heat of Fusion, J/g 500
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 150
44
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1110
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 20
83 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 490
490 to 1050
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
24
Strength to Weight: Axial, points 34 to 35
23 to 27
Strength to Weight: Bending, points 40 to 41
21 to 24
Thermal Diffusivity, mm2/s 66
12
Thermal Shock Resistance, points 15
19 to 23

Alloy Composition

Aluminum (Al), % 91 to 93.1
0
Carbon (C), % 0
0.22 to 0.29
Chromium (Cr), % 0
0.8 to 1.2
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
96.8 to 98.3
Magnesium (Mg), % 0.45 to 0.7
0
Manganese (Mn), % 0 to 0.1
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 6.5 to 7.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0

Comparable Variants