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ACI-ASTM CB6 Steel vs. 1080A Aluminum

ACI-ASTM CB6 steel belongs to the iron alloys classification, while 1080A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 CB6 steel and the bottom bar is 1080A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 18
2.3 to 34
Fatigue Strength, MPa 410
18 to 50
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 880
74 to 140
Tensile Strength: Yield (Proof), MPa 660
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 870
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1390
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 17
230
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
62
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
200

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.5
8.3
Embodied Energy, MJ/kg 36
160
Embodied Water, L/kg 130
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
3.1 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
2.1 to 100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 32
7.6 to 15
Strength to Weight: Bending, points 26
14 to 22
Thermal Diffusivity, mm2/s 4.6
94
Thermal Shock Resistance, points 31
3.3 to 6.4

Alloy Composition

Aluminum (Al), % 0
99.8 to 100
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 74.4 to 81
0 to 0.15
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0 to 0.020
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 5.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.060