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308.0 Aluminum vs. 5251 Aluminum

Both 308.0 aluminum and 5251 aluminum are aluminum alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 308.0 aluminum and the bottom bar is 5251 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
44 to 79
Elastic (Young's, Tensile) Modulus, GPa 73
68
Elongation at Break, % 2.0
2.0 to 19
Fatigue Strength, MPa 89
59 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 150
110 to 160
Tensile Strength: Ultimate (UTS), MPa 190
180 to 280
Tensile Strength: Yield (Proof), MPa 110
67 to 250

Thermal Properties

Latent Heat of Fusion, J/g 470
400
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 620
650
Melting Onset (Solidus), °C 540
610
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 20
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
37
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 7.7
8.5
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1080
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
5.4 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 83
33 to 450
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 18
18 to 29
Strength to Weight: Bending, points 25
26 to 35
Thermal Diffusivity, mm2/s 55
61
Thermal Shock Resistance, points 9.2
7.9 to 13

Alloy Composition

Aluminum (Al), % 85.7 to 91
95.5 to 98.2
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 4.0 to 5.0
0 to 0.15
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0 to 0.1
1.7 to 2.4
Manganese (Mn), % 0 to 0.5
0.1 to 0.5
Silicon (Si), % 5.0 to 6.0
0 to 0.4
Titanium (Ti), % 0 to 0.25
0 to 0.15
Zinc (Zn), % 0 to 1.0
0 to 0.15
Residuals, % 0 to 0.5
0 to 0.15