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5251 Aluminum vs. 240.0 Aluminum

Both 5251 aluminum and 240.0 aluminum are aluminum alloys. They have 87% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 5251 aluminum and the bottom bar is 240.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
72
Elongation at Break, % 2.0 to 19
1.0
Fatigue Strength, MPa 59 to 110
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 180 to 280
240
Tensile Strength: Yield (Proof), MPa 67 to 250
200

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
600
Melting Onset (Solidus), °C 610
520
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 150
96
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
23
Electrical Conductivity: Equal Weight (Specific), % IACS 120
65

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
3.2
Embodied Carbon, kg CO2/kg material 8.5
8.7
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 27
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 450
280
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
43
Strength to Weight: Axial, points 18 to 29
20
Strength to Weight: Bending, points 26 to 35
26
Thermal Diffusivity, mm2/s 61
35
Thermal Shock Resistance, points 7.9 to 13
11

Alloy Composition

Aluminum (Al), % 95.5 to 98.2
81.7 to 86.9
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
7.0 to 9.0
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 1.7 to 2.4
5.5 to 6.5
Manganese (Mn), % 0.1 to 0.5
0.3 to 0.7
Nickel (Ni), % 0
0.3 to 0.7
Silicon (Si), % 0 to 0.4
0 to 0.5
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.15
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15