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2017 Aluminum vs. 7175 Aluminum

Both 2017 aluminum and 7175 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is 2017 aluminum and the bottom bar is 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 12 to 18
3.8 to 5.9
Fatigue Strength, MPa 90 to 130
150 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
26
Shear Strength, MPa 130 to 260
290 to 330
Tensile Strength: Ultimate (UTS), MPa 190 to 430
520 to 570
Tensile Strength: Yield (Proof), MPa 76 to 260
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 510
480
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
33
Electrical Conductivity: Equal Weight (Specific), % IACS 110
99

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.0
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 66
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 41 to 470
1310 to 1730
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 17 to 40
48 to 52
Strength to Weight: Bending, points 24 to 42
48 to 51
Thermal Diffusivity, mm2/s 56
53
Thermal Shock Resistance, points 7.9 to 18
23 to 25

Alloy Composition

Aluminum (Al), % 91.6 to 95.5
88 to 91.4
Chromium (Cr), % 0 to 0.1
0.18 to 0.28
Copper (Cu), % 3.5 to 4.5
1.2 to 2.0
Iron (Fe), % 0 to 0.7
0 to 0.2
Magnesium (Mg), % 0.4 to 0.8
2.1 to 2.9
Manganese (Mn), % 0.4 to 1.0
0 to 0.1
Silicon (Si), % 0.2 to 0.8
0 to 0.15
Titanium (Ti), % 0 to 0.15
0 to 0.1
Zinc (Zn), % 0 to 0.25
5.1 to 6.1
Residuals, % 0
0 to 0.15