MakeItFrom.com
Menu (ESC)

5049 Aluminum vs. 7021 Aluminum

Both 5049 aluminum and 7021 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 5049 aluminum and the bottom bar is 7021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 2.0 to 18
9.4
Fatigue Strength, MPa 79 to 130
150
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 130 to 190
270
Tensile Strength: Ultimate (UTS), MPa 210 to 330
460
Tensile Strength: Yield (Proof), MPa 91 to 280
390

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 620
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
38
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.5
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 31
41
Resilience: Unit (Modulus of Resilience), kJ/m3 59 to 570
1110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 22 to 34
44
Strength to Weight: Bending, points 29 to 39
45
Thermal Diffusivity, mm2/s 56
59
Thermal Shock Resistance, points 9.3 to 15
20

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
90.7 to 93.7
Chromium (Cr), % 0 to 0.3
0 to 0.050
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 0.4
Magnesium (Mg), % 1.6 to 2.5
1.2 to 1.8
Manganese (Mn), % 0.5 to 1.1
0 to 0.1
Silicon (Si), % 0 to 0.4
0 to 0.25
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.2
5.0 to 6.0
Zirconium (Zr), % 0
0.080 to 0.18
Residuals, % 0
0 to 0.15