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7175 Aluminum vs. 850.0 Aluminum

Both 7175 aluminum and 850.0 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 7175 aluminum and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 3.8 to 5.9
7.9
Fatigue Strength, MPa 150 to 180
59
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 290 to 330
100
Tensile Strength: Ultimate (UTS), MPa 520 to 570
140
Tensile Strength: Yield (Proof), MPa 430 to 490
76

Thermal Properties

Latent Heat of Fusion, J/g 380
380
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 480
370
Specific Heat Capacity, J/kg-K 870
850
Thermal Conductivity, W/m-K 140
180
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
47
Electrical Conductivity: Equal Weight (Specific), % IACS 99
140

Otherwise Unclassified Properties

Base Metal Price, % relative 10
14
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 8.2
8.5
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1130
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 29
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 1310 to 1730
42
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 46
44
Strength to Weight: Axial, points 48 to 52
12
Strength to Weight: Bending, points 48 to 51
19
Thermal Diffusivity, mm2/s 53
69
Thermal Shock Resistance, points 23 to 25
6.1

Alloy Composition

Aluminum (Al), % 88 to 91.4
88.3 to 93.1
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
0.7 to 1.3
Iron (Fe), % 0 to 0.2
0 to 0.7
Magnesium (Mg), % 2.1 to 2.9
0 to 0.1
Manganese (Mn), % 0 to 0.1
0 to 0.1
Nickel (Ni), % 0
0.7 to 1.3
Silicon (Si), % 0 to 0.15
0 to 0.7
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 5.1 to 6.1
0
Residuals, % 0
0 to 0.3