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ACI-ASTM CH20 Steel vs. 5005A Aluminum

ACI-ASTM CH20 steel belongs to the iron alloys classification, while 5005A 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 CH20 steel and the bottom bar is 5005A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
29 to 64
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 38
1.1 to 21
Fatigue Strength, MPa 290
38 to 82
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 610
110 to 230
Tensile Strength: Yield (Proof), MPa 350
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1410
660
Melting Onset (Solidus), °C 1430
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 14
200
Thermal Expansion, µm/m-K 15
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
52
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
170

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.7
8.3
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 300
14 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22
12 to 24
Strength to Weight: Bending, points 21
19 to 31
Thermal Diffusivity, mm2/s 3.7
82
Thermal Shock Resistance, points 15
5.0 to 10

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.3
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 26
0 to 0.1
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 54.7 to 66
0 to 0.45
Magnesium (Mg), % 0
0.7 to 1.1
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 12 to 15
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.3
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15