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5182 Aluminum vs. ACI-ASTM CA15 Steel

5182 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CA15 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 5182 aluminum and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 12
21
Fatigue Strength, MPa 100 to 130
370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
76
Tensile Strength: Ultimate (UTS), MPa 280 to 420
700
Tensile Strength: Yield (Proof), MPa 130 to 360
570

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 180
750
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 590
1500
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
25
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 94
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.5
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1180
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
140
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 29 to 44
25
Strength to Weight: Bending, points 36 to 47
23
Thermal Diffusivity, mm2/s 53
6.7
Thermal Shock Resistance, points 12 to 19
26

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
11.5 to 14
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
81.8 to 88.5
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0