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ACI-ASTM CB30 Steel vs. 319.0 Aluminum

ACI-ASTM CB30 steel belongs to the iron alloys classification, while 319.0 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 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
78 to 84
Elastic (Young's, Tensile) Modulus, GPa 200
72
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500
190 to 240
Tensile Strength: Yield (Proof), MPa 230
110 to 180

Thermal Properties

Latent Heat of Fusion, J/g 290
480
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
84

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 2.3
7.7
Embodied Energy, MJ/kg 33
140
Embodied Water, L/kg 130
1080

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
88 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 18
18 to 24
Strength to Weight: Bending, points 18
25 to 30
Thermal Diffusivity, mm2/s 5.6
44
Thermal Shock Resistance, points 17
8.6 to 11

Alloy Composition

Aluminum (Al), % 0
85.8 to 91.5
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 1.2
3.0 to 4.0
Iron (Fe), % 72.9 to 82
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 0 to 2.0
0 to 0.35
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
5.5 to 6.5
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5