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5251 Aluminum vs. 308.0 Aluminum

Both 5251 aluminum and 308.0 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 5251 aluminum and the bottom bar is 308.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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