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EN AC-44200 Aluminum vs. SAE-AISI 1038 Steel

EN AC-44200 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1038 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-44200 aluminum and the bottom bar is SAE-AISI 1038 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 6.2
14 to 20
Fatigue Strength, MPa 63
220 to 350
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
590 to 640
Tensile Strength: Yield (Proof), MPa 86
320 to 540

Thermal Properties

Latent Heat of Fusion, J/g 570
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 580
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 130
51
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 1050
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 51
270 to 790
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
24
Strength to Weight: Axial, points 20
21 to 23
Strength to Weight: Bending, points 28
20 to 21
Thermal Diffusivity, mm2/s 59
14
Thermal Shock Resistance, points 8.4
19 to 20

Alloy Composition

Aluminum (Al), % 85.2 to 89.5
0
Carbon (C), % 0
0.35 to 0.42
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.55
98.6 to 99.05
Manganese (Mn), % 0 to 0.35
0.6 to 0.9
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0