MakeItFrom.com
Menu (ESC)

5251 Aluminum vs. 5040 Aluminum

Both 5251 aluminum and 5040 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 5251 aluminum and the bottom bar is 5040 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 44 to 79
66 to 74
Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 2.0 to 19
5.7 to 6.8
Fatigue Strength, MPa 59 to 110
100 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110 to 160
140 to 150
Tensile Strength: Ultimate (UTS), MPa 180 to 280
240 to 260
Tensile Strength: Yield (Proof), MPa 67 to 250
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 610
600
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150
160
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
41
Electrical Conductivity: Equal Weight (Specific), % IACS 120
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.5
8.3
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
14 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 450
260 to 380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 18 to 29
24 to 26
Strength to Weight: Bending, points 26 to 35
31 to 32
Thermal Diffusivity, mm2/s 61
64
Thermal Shock Resistance, points 7.9 to 13
10 to 11

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 95.5 to 98.2
95.2 to 98
Chromium (Cr), % 0 to 0.15
0.1 to 0.3
Copper (Cu), % 0 to 0.15
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 1.7 to 2.4
1.0 to 1.5
Manganese (Mn), % 0.1 to 0.5
0.9 to 1.4
Silicon (Si), % 0 to 0.4
0 to 0.3
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants