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ACI-ASTM CB30 Steel vs. 355.0 Aluminum

ACI-ASTM CB30 steel belongs to the iron alloys classification, while 355.0 aluminum belongs to the aluminum alloys. There are 27 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 ACI-ASTM CB30 steel and the bottom bar is 355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
72 to 83
Elastic (Young's, Tensile) Modulus, GPa 200
71
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500
200 to 260
Tensile Strength: Yield (Proof), MPa 230
150 to 190

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 940
180
Melting Completion (Liquidus), °C 1430
620
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 21
150 to 170
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
38 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
120 to 140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 2.3
8.0
Embodied Energy, MJ/kg 33
150
Embodied Water, L/kg 130
1120

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
150 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 18
20 to 27
Strength to Weight: Bending, points 18
28 to 33
Thermal Diffusivity, mm2/s 5.6
60 to 69
Thermal Shock Resistance, points 17
9.1 to 12

Alloy Composition

Aluminum (Al), % 0
90.3 to 94.1
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 18 to 21
0 to 0.25
Copper (Cu), % 0 to 1.2
1.0 to 1.5
Iron (Fe), % 72.9 to 82
0 to 0.6
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
4.5 to 5.5
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15