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ACI-ASTM CF8C Steel vs. 333.0 Aluminum

ACI-ASTM CF8C steel belongs to the iron alloys classification, while 333.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 CF8C steel and the bottom bar is 333.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
90 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 40
1.0 to 2.0
Fatigue Strength, MPa 220
83 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
28
Tensile Strength: Ultimate (UTS), MPa 530
230 to 280
Tensile Strength: Yield (Proof), MPa 260
130 to 210

Thermal Properties

Latent Heat of Fusion, J/g 300
520
Maximum Temperature: Mechanical, °C 980
170
Melting Completion (Liquidus), °C 1420
590
Melting Onset (Solidus), °C 1430
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 16
100 to 140
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
26 to 35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
83 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 19
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 3.7
7.6
Embodied Energy, MJ/kg 53
140
Embodied Water, L/kg 150
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
2.1 to 4.6
Resilience: Unit (Modulus of Resilience), kJ/m3 170
120 to 290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 19
22 to 27
Strength to Weight: Bending, points 19
29 to 34
Thermal Diffusivity, mm2/s 4.3
42 to 57
Thermal Shock Resistance, points 11
11 to 13

Alloy Composition

Aluminum (Al), % 0
81.8 to 89
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 61.8 to 73
0 to 1.0
Magnesium (Mg), % 0
0.050 to 0.5
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 12
0 to 0.5
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
8.0 to 10
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