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7178 Aluminum vs. 90-silver 10-nickel

7178 aluminum belongs to the aluminum alloys classification, while 90-silver 10-nickel belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7178 aluminum and the bottom bar is 90-silver 10-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
82
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 27
30
Tensile Strength: Ultimate (UTS), MPa 240 to 640
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 370
130
Melting Completion (Liquidus), °C 630
840
Melting Onset (Solidus), °C 480
960
Specific Heat Capacity, J/kg-K 860
260
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
90
Electrical Conductivity: Equal Weight (Specific), % IACS 91
79

Otherwise Unclassified Properties

Density, g/cm3 3.1
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.4
Stiffness to Weight: Bending, points 45
14
Strength to Weight: Axial, points 21 to 58
6.7 to 11
Strength to Weight: Bending, points 28 to 54
8.5 to 12
Thermal Shock Resistance, points 10 to 28
11 to 19

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.6 to 2.4
0
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 2.4 to 3.1
0
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 0
8.8 to 11
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
89 to 91
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.3 to 7.3
0
Residuals, % 0
0 to 0.2

Comparable Variants