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5251 Aluminum vs. 511.0 Aluminum

Both 5251 aluminum and 511.0 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 5251 aluminum and the bottom bar is 511.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 44 to 79
50
Elastic (Young's, Tensile) Modulus, GPa 68
68
Elongation at Break, % 2.0 to 19
3.0
Fatigue Strength, MPa 59 to 110
55
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Shear Strength, MPa 110 to 160
120
Tensile Strength: Ultimate (UTS), MPa 180 to 280
150
Tensile Strength: Yield (Proof), MPa 67 to 250
83

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 610
590
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
36
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

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
8.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 27
3.7
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 450
51
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 18 to 29
15
Strength to Weight: Bending, points 26 to 35
23
Thermal Diffusivity, mm2/s 61
59
Thermal Shock Resistance, points 7.9 to 13
6.5

Alloy Composition

Aluminum (Al), % 95.5 to 98.2
93.3 to 96.2
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 0 to 0.15
0 to 0.15
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 1.7 to 2.4
3.5 to 4.5
Manganese (Mn), % 0.1 to 0.5
0 to 0.35
Silicon (Si), % 0 to 0.4
0.3 to 0.7
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0 to 0.15
0 to 0.15
Residuals, % 0 to 0.15
0 to 0.15