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5005-O Aluminum vs. ACI-ASTM CN7M Steel

5005-O aluminum belongs to the aluminum alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 5005-O aluminum and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28
140
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 23
44
Fatigue Strength, MPa 45
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 120
480
Tensile Strength: Yield (Proof), MPa 41
200

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 650
1410
Melting Onset (Solidus), °C 630
1450
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 200
21
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 52
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 170
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.3
5.6
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1190
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
170
Resilience: Unit (Modulus of Resilience), kJ/m3 12
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 82
5.6
Thermal Shock Resistance, points 5.4
12

Alloy Composition

Aluminum (Al), % 97 to 99.5
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.1
19 to 22
Copper (Cu), % 0 to 0.2
3.0 to 4.0
Iron (Fe), % 0 to 0.7
37.4 to 48.5
Magnesium (Mg), % 0.5 to 1.1
0
Manganese (Mn), % 0 to 0.2
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0