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308.0 Aluminum vs. SAE-AISI 1065 Steel

308.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 1065 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 308.0 aluminum and the bottom bar is SAE-AISI 1065 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
210 to 230
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 2.0
11 to 14
Fatigue Strength, MPa 89
270 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
72
Shear Strength, MPa 150
430 to 470
Tensile Strength: Ultimate (UTS), MPa 190
710 to 780
Tensile Strength: Yield (Proof), MPa 110
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 140
51
Thermal Expansion, µm/m-K 20
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1080
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
74 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 83
490 to 820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 18
25 to 28
Strength to Weight: Bending, points 25
23 to 24
Thermal Diffusivity, mm2/s 55
14
Thermal Shock Resistance, points 9.2
25 to 27

Alloy Composition

Aluminum (Al), % 85.7 to 91
0
Carbon (C), % 0
0.6 to 0.7
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.0
98.3 to 98.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.6 to 0.9
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 5.0 to 6.0
0
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0