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354.0 Aluminum vs. ACI-ASTM CN7M Steel

354.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 29 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 354.0 aluminum and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.4 to 3.0
44
Fatigue Strength, MPa 92 to 120
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 360 to 380
480
Tensile Strength: Yield (Proof), MPa 280 to 310
200

Thermal Properties

Latent Heat of Fusion, J/g 530
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 600
1410
Melting Onset (Solidus), °C 550
1450
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
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 7.8
5.6
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1070
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6 to 9.8
170
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 670
110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 37 to 39
17
Strength to Weight: Bending, points 42 to 44
17
Thermal Diffusivity, mm2/s 52
5.6
Thermal Shock Resistance, points 17 to 18
12

Alloy Composition


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Aluminum (Al), % 87.3 to 89.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 1.6 to 2.0
3.0 to 4.0
Iron (Fe), % 0 to 0.2
37.4 to 48.5
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
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), % 8.6 to 9.4
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0