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A535.0 Aluminum vs. SAE-AISI 1108 Steel

A535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1108 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 A535.0 aluminum and the bottom bar is SAE-AISI 1108 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
190
Elongation at Break, % 9.0
23 to 34
Fatigue Strength, MPa 95
170 to 260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Tensile Strength: Ultimate (UTS), MPa 250
380 to 440
Tensile Strength: Yield (Proof), MPa 120
220 to 360

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 100
52
Thermal Expansion, µm/m-K 24
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 79
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 9.3
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 1180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
95 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 120
130 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 26
13 to 16
Strength to Weight: Bending, points 33
15 to 16
Thermal Diffusivity, mm2/s 42
14
Thermal Shock Resistance, points 11
12 to 14

Alloy Composition

Aluminum (Al), % 91.4 to 93.4
0
Carbon (C), % 0
0.080 to 0.13
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
98.9 to 99.24
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
0.6 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 0 to 0.25
0
Residuals, % 0 to 0.15
0