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SAE-AISI 12L14 Steel vs. 354.0 Aluminum

SAE-AISI 12L14 steel belongs to the iron alloys classification, while 354.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 12L14 steel and the bottom bar is 354.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 11 to 25
2.4 to 3.0
Fatigue Strength, MPa 190 to 290
92 to 120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Tensile Strength: Ultimate (UTS), MPa 440 to 620
360 to 380
Tensile Strength: Yield (Proof), MPa 260 to 460
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 250
530
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 51
130
Thermal Expansion, µm/m-K 12
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 1.4
7.8
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 47
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64 to 93
8.6 to 9.8
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 560
540 to 670
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 15 to 22
37 to 39
Strength to Weight: Bending, points 16 to 20
42 to 44
Thermal Diffusivity, mm2/s 14
52
Thermal Shock Resistance, points 14 to 20
17 to 18

Alloy Composition

Aluminum (Al), % 0
87.3 to 89.4
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 0
1.6 to 2.0
Iron (Fe), % 97.9 to 98.7
0 to 0.2
Lead (Pb), % 0.15 to 0.35
0
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0.85 to 1.2
0 to 0.1
Phosphorus (P), % 0.040 to 0.090
0
Silicon (Si), % 0
8.6 to 9.4
Sulfur (S), % 0.26 to 0.35
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15