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EN 1.7230 Steel vs. 384.0 Aluminum

EN 1.7230 steel belongs to the iron alloys classification, while 384.0 aluminum belongs to the aluminum 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 1.7230 steel and the bottom bar is 384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 270
85
Elastic (Young's, Tensile) Modulus, GPa 190
74
Elongation at Break, % 11 to 12
2.5
Fatigue Strength, MPa 320 to 460
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
28
Tensile Strength: Ultimate (UTS), MPa 720 to 910
330
Tensile Strength: Yield (Proof), MPa 510 to 740
170

Thermal Properties

Latent Heat of Fusion, J/g 250
550
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
580
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 44
96
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
22
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
69

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
11
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 1.5
7.4
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 51
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 97
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1460
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 26 to 32
32
Strength to Weight: Bending, points 23 to 27
37
Thermal Diffusivity, mm2/s 12
39
Thermal Shock Resistance, points 21 to 27
15

Alloy Composition

Aluminum (Al), % 0
77.3 to 86.5
Carbon (C), % 0.3 to 0.37
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
3.0 to 4.5
Iron (Fe), % 96.7 to 98.3
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.5 to 0.8
0 to 0.5
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
10.5 to 12
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5