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1435 Aluminum vs. ACI-ASTM CG8M Steel

1435 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CG8M steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1435 aluminum and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 4.1 to 32
45
Fatigue Strength, MPa 27 to 49
280
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 81 to 150
550
Tensile Strength: Yield (Proof), MPa 23 to 130
300

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1020
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 640
1400
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
16
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
20
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.2
4.1
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.0 to 20
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 110
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 8.3 to 15
19
Strength to Weight: Bending, points 15 to 23
19
Thermal Diffusivity, mm2/s 93
4.3
Thermal Shock Resistance, points 3.6 to 6.7
12

Alloy Composition

Aluminum (Al), % 99.35 to 99.7
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0.3 to 0.5
58.8 to 70
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
9.0 to 13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.1
0