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A206.0 Aluminum vs. ACI-ASTM CF8C Steel

A206.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CF8C steel belongs to the iron 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 A206.0 aluminum and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
150
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.2 to 10
40
Fatigue Strength, MPa 90 to 180
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 390 to 440
530
Tensile Strength: Yield (Proof), MPa 250 to 380
260

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 670
1420
Melting Onset (Solidus), °C 550
1430
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
19
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
3.7
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1150
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 37
180
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1000
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 36 to 41
19
Strength to Weight: Bending, points 39 to 43
19
Thermal Diffusivity, mm2/s 48
4.3
Thermal Shock Resistance, points 17 to 19
11

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.1
61.8 to 73
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.050
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.050
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0