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SAE-AISI 1118 Steel vs. 332.0 Aluminum

SAE-AISI 1118 steel belongs to the iron alloys classification, while 332.0 aluminum belongs to the aluminum alloys. 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 1118 steel and the bottom bar is 332.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 13
1.0
Fatigue Strength, MPa 260
90
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 300
190
Tensile Strength: Ultimate (UTS), MPa 490
250
Tensile Strength: Yield (Proof), MPa 410
190

Thermal Properties

Latent Heat of Fusion, J/g 250
530
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
580
Melting Onset (Solidus), °C 1420
530
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 52
100
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
84

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.4
7.8
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 47
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 450
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 18
31
Thermal Diffusivity, mm2/s 14
42
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0
80.1 to 89
Carbon (C), % 0.14 to 0.2
0
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 98 to 98.5
0 to 1.2
Magnesium (Mg), % 0
0.5 to 1.5
Manganese (Mn), % 1.3 to 1.6
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
8.5 to 10.5
Sulfur (S), % 0.080 to 0.13
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5