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5251 Aluminum vs. 355.0 Aluminum

Both 5251 aluminum and 355.0 aluminum are aluminum alloys. They have a moderately high 94% 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 355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 44 to 79
72 to 83
Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 2.0 to 19
1.5 to 2.6
Fatigue Strength, MPa 59 to 110
55 to 70
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 110 to 160
150 to 240
Tensile Strength: Ultimate (UTS), MPa 180 to 280
200 to 260
Tensile Strength: Yield (Proof), MPa 67 to 250
150 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
470
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 610
560
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 150
150 to 170
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
38 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120 to 140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.5
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 27
2.7 to 5.9
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 450
150 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 18 to 29
20 to 27
Strength to Weight: Bending, points 26 to 35
28 to 33
Thermal Diffusivity, mm2/s 61
60 to 69
Thermal Shock Resistance, points 7.9 to 13
9.1 to 12

Alloy Composition

Aluminum (Al), % 95.5 to 98.2
90.3 to 94.1
Chromium (Cr), % 0 to 0.15
0 to 0.25
Copper (Cu), % 0 to 0.15
1.0 to 1.5
Iron (Fe), % 0 to 0.5
0 to 0.6
Magnesium (Mg), % 1.7 to 2.4
0.4 to 0.6
Manganese (Mn), % 0.1 to 0.5
0 to 0.5
Silicon (Si), % 0 to 0.4
4.5 to 5.5
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0 to 0.15
0 to 0.35
Residuals, % 0 to 0.15
0 to 0.15