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5026 Aluminum vs. ACI-ASTM CB30 Steel

5026 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CB30 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 5026 aluminum and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 260 to 320
500
Tensile Strength: Yield (Proof), MPa 120 to 250
230

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 210
940
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 510
1380
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.9
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1150
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 440
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 26 to 32
18
Strength to Weight: Bending, points 33 to 37
18
Thermal Diffusivity, mm2/s 52
5.6
Thermal Shock Resistance, points 11 to 14
17

Alloy Composition

Aluminum (Al), % 88.2 to 94.7
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0 to 0.3
18 to 21
Copper (Cu), % 0.1 to 0.8
0 to 1.2
Iron (Fe), % 0.2 to 1.0
72.9 to 82
Magnesium (Mg), % 3.9 to 4.9
0
Manganese (Mn), % 0.6 to 1.8
0 to 1.0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.55 to 1.4
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 1.0
0
Zirconium (Zr), % 0 to 0.3
0
Residuals, % 0 to 0.15
0