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SAE-AISI 1023 Steel vs. EN AC-44500 Aluminum

SAE-AISI 1023 steel belongs to the iron alloys classification, while EN AC-44500 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 SAE-AISI 1023 steel and the bottom bar is EN AC-44500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 140
68
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 17 to 29
1.1
Fatigue Strength, MPa 180 to 270
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 430 to 480
270
Tensile Strength: Yield (Proof), MPa 240 to 410
160

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 53
130
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 1.4
7.7
Embodied Energy, MJ/kg 18
140
Embodied Water, L/kg 45
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 100
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 450
180
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
55
Strength to Weight: Axial, points 15 to 17
29
Strength to Weight: Bending, points 16 to 17
36
Thermal Diffusivity, mm2/s 14
57
Thermal Shock Resistance, points 14 to 15
13

Alloy Composition

Aluminum (Al), % 0
83.7 to 89.5
Carbon (C), % 0.2 to 0.25
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 99.06 to 99.5
0 to 1.0
Magnesium (Mg), % 0
0 to 0.4
Manganese (Mn), % 0.3 to 0.6
0 to 0.55
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
10.5 to 13.5
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.25