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7049 Aluminum vs. 5049 Aluminum

Both 7049 aluminum and 5049 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is 7049 aluminum and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 6.2 to 7.0
2.0 to 18
Fatigue Strength, MPa 160 to 170
79 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 300 to 310
130 to 190
Tensile Strength: Ultimate (UTS), MPa 510 to 530
210 to 330
Tensile Strength: Yield (Proof), MPa 420 to 450
91 to 280

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 480
620
Specific Heat Capacity, J/kg-K 860
900
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
35
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.1
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.5
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1110
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
6.0 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
59 to 570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
50
Strength to Weight: Axial, points 46 to 47
22 to 34
Strength to Weight: Bending, points 46 to 47
29 to 39
Thermal Diffusivity, mm2/s 51
56
Thermal Shock Resistance, points 22 to 23
9.3 to 15

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
94.7 to 97.9
Chromium (Cr), % 0.1 to 0.22
0 to 0.3
Copper (Cu), % 1.2 to 1.9
0 to 0.1
Iron (Fe), % 0 to 0.35
0 to 0.5
Magnesium (Mg), % 2.0 to 2.9
1.6 to 2.5
Manganese (Mn), % 0 to 0.2
0.5 to 1.1
Silicon (Si), % 0 to 0.25
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 7.2 to 8.2
0 to 0.2
Residuals, % 0
0 to 0.15