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C355.0 Aluminum vs. SAE-AISI 12L14 Steel

C355.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 12L14 steel belongs to the iron alloys. There are 30 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 C355.0 aluminum and the bottom bar is SAE-AISI 12L14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86 to 90
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 2.7 to 3.8
11 to 25
Fatigue Strength, MPa 76 to 84
190 to 290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Tensile Strength: Ultimate (UTS), MPa 290 to 310
440 to 620
Tensile Strength: Yield (Proof), MPa 200 to 230
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
51
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.0
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1120
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
64 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
180 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 30 to 32
15 to 22
Strength to Weight: Bending, points 36 to 37
16 to 20
Thermal Diffusivity, mm2/s 60
14
Thermal Shock Resistance, points 13 to 14
14 to 20

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 1.0 to 1.5
0
Iron (Fe), % 0 to 0.2
97.9 to 98.7
Lead (Pb), % 0
0.15 to 0.35
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0.85 to 1.2
Phosphorus (P), % 0
0.040 to 0.090
Silicon (Si), % 4.5 to 5.5
0
Sulfur (S), % 0
0.26 to 0.35
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0