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7204 Aluminum vs. 5088 Aluminum

Both 7204 aluminum and 5088 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 7204 aluminum and the bottom bar is 5088 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
68
Elongation at Break, % 11 to 13
29
Fatigue Strength, MPa 110 to 130
180
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Shear Strength, MPa 130 to 220
200
Tensile Strength: Ultimate (UTS), MPa 220 to 380
310
Tensile Strength: Yield (Proof), MPa 120 to 310
150

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 520
540
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
98

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.4
9.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 40
76
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 710
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 21 to 36
32
Strength to Weight: Bending, points 28 to 40
38
Thermal Diffusivity, mm2/s 58
51
Thermal Shock Resistance, points 9.4 to 16
14

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
92.4 to 94.8
Chromium (Cr), % 0 to 0.3
0 to 0.15
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 0.35
0.1 to 0.35
Magnesium (Mg), % 1.0 to 2.0
4.7 to 5.5
Manganese (Mn), % 0.2 to 0.7
0.2 to 0.5
Silicon (Si), % 0 to 0.3
0 to 0.2
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0.2 to 0.4
Zirconium (Zr), % 0 to 0.25
0 to 0.15
Residuals, % 0
0 to 0.15