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ACI-ASTM CB30 Steel vs. 295.0 Aluminum

ACI-ASTM CB30 steel belongs to the iron alloys classification, while 295.0 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 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
60 to 93
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
230 to 280
Tensile Strength: Yield (Proof), MPa 230
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 21
140
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
35
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
100

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.3
7.9
Embodied Energy, MJ/kg 33
150
Embodied Water, L/kg 130
1140

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
77 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18
21 to 26
Strength to Weight: Bending, points 18
27 to 32
Thermal Diffusivity, mm2/s 5.6
54
Thermal Shock Resistance, points 17
9.8 to 12

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.3
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 1.2
4.0 to 5.0
Iron (Fe), % 72.9 to 82
0 to 1.0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0 to 0.35
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0.7 to 1.5
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