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5254 Aluminum vs. ACI-ASTM CB30 Steel

5254 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 5254 aluminum and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 240 to 350
500
Tensile Strength: Yield (Proof), MPa 100 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 190
940
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 590
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.8
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1180
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 550
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 25 to 37
18
Strength to Weight: Bending, points 32 to 41
18
Thermal Diffusivity, mm2/s 52
5.6
Thermal Shock Resistance, points 10 to 16
17

Alloy Composition


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Aluminum (Al), % 94.4 to 96.8
0
Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0.15 to 0.35
18 to 21
Copper (Cu), % 0 to 0.050
0 to 1.2
Iron (Fe), % 0 to 0.45
72.9 to 82
Magnesium (Mg), % 3.1 to 3.9
0
Manganese (Mn), % 0 to 0.010
0 to 1.0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.45
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0