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5657 Aluminum vs. 7049 Aluminum

Both 5657 aluminum and 7049 aluminum are aluminum alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is 5657 aluminum and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 40 to 50
140
Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 6.6 to 15
6.2 to 7.0
Fatigue Strength, MPa 74 to 88
160 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 92 to 110
300 to 310
Tensile Strength: Ultimate (UTS), MPa 150 to 200
510 to 530
Tensile Strength: Yield (Proof), MPa 140 to 170
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
480
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 210
130
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
36
Electrical Conductivity: Equal Weight (Specific), % IACS 180
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.4
8.1
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 1200
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
1270 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 15 to 20
46 to 47
Strength to Weight: Bending, points 23 to 28
46 to 47
Thermal Diffusivity, mm2/s 84
51
Thermal Shock Resistance, points 6.7 to 8.6
22 to 23

Alloy Composition

Aluminum (Al), % 98.5 to 99.4
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 0 to 0.1
1.2 to 1.9
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0 to 0.35
Magnesium (Mg), % 0.6 to 1.0
2.0 to 2.9
Manganese (Mn), % 0 to 0.030
0 to 0.2
Silicon (Si), % 0 to 0.080
0 to 0.25
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
7.2 to 8.2
Residuals, % 0 to 0.050
0 to 0.15