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5449 Aluminum vs. 6262 Aluminum

Both 5449 aluminum and 6262 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 5449 aluminum and the bottom bar is 6262 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 4.0 to 17
4.6 to 10
Fatigue Strength, MPa 78 to 120
90 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 130 to 190
170 to 240
Tensile Strength: Ultimate (UTS), MPa 210 to 330
290 to 390
Tensile Strength: Yield (Proof), MPa 91 to 260
270 to 360

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 590
580
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 140
170
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
44
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.5
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
17 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
530 to 940
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
48
Strength to Weight: Axial, points 22 to 33
29 to 39
Strength to Weight: Bending, points 29 to 39
35 to 42
Thermal Diffusivity, mm2/s 56
69
Thermal Shock Resistance, points 9.4 to 15
13 to 18

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
94.7 to 97.8
Bismuth (Bi), % 0
0.4 to 0.7
Chromium (Cr), % 0 to 0.3
0.040 to 0.14
Copper (Cu), % 0 to 0.3
0.15 to 0.4
Iron (Fe), % 0 to 0.7
0 to 0.7
Lead (Pb), % 0
0.4 to 0.7
Magnesium (Mg), % 1.6 to 2.6
0.8 to 1.2
Manganese (Mn), % 0.6 to 1.1
0 to 0.15
Silicon (Si), % 0 to 0.4
0.4 to 0.8
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.3
0 to 0.25
Residuals, % 0
0 to 0.15