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7049 Aluminum vs. 7204 Aluminum

Both 7049 aluminum and 7204 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 7049 aluminum and the bottom bar is 7204 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 6.2 to 7.0
11 to 13
Fatigue Strength, MPa 160 to 170
110 to 130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 300 to 310
130 to 220
Tensile Strength: Ultimate (UTS), MPa 510 to 530
220 to 380
Tensile Strength: Yield (Proof), MPa 420 to 450
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 370
380
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 480
520
Specific Heat Capacity, J/kg-K 860
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
39
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.1
2.9
Embodied Carbon, kg CO2/kg material 8.1
8.4
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1110
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
25 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
110 to 710
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 46 to 47
21 to 36
Strength to Weight: Bending, points 46 to 47
28 to 40
Thermal Diffusivity, mm2/s 51
58
Thermal Shock Resistance, points 22 to 23
9.4 to 16

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
90.5 to 94.8
Chromium (Cr), % 0.1 to 0.22
0 to 0.3
Copper (Cu), % 1.2 to 1.9
0 to 0.2
Iron (Fe), % 0 to 0.35
0 to 0.35
Magnesium (Mg), % 2.0 to 2.9
1.0 to 2.0
Manganese (Mn), % 0 to 0.2
0.2 to 0.7
Silicon (Si), % 0 to 0.25
0 to 0.3
Titanium (Ti), % 0 to 0.1
0 to 0.2
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 7.2 to 8.2
4.0 to 5.0
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15