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7175 Aluminum vs. C97300 Nickel Silver

7175 aluminum belongs to the aluminum alloys classification, while C97300 nickel silver belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 7175 aluminum and the bottom bar is C97300 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.8 to 5.9
9.0
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 520 to 570
230
Tensile Strength: Yield (Proof), MPa 430 to 490
110

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 180
150
Melting Completion (Liquidus), °C 640
1040
Melting Onset (Solidus), °C 480
1010
Specific Heat Capacity, J/kg-K 870
370
Thermal Conductivity, W/m-K 140
29
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
30
Density, g/cm3 3.0
8.6
Embodied Carbon, kg CO2/kg material 8.2
3.7
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 29
18
Resilience: Unit (Modulus of Resilience), kJ/m3 1310 to 1730
59
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 48 to 52
7.6
Strength to Weight: Bending, points 48 to 51
9.8
Thermal Diffusivity, mm2/s 53
9.3
Thermal Shock Resistance, points 23 to 25
8.0

Alloy Composition

Aluminum (Al), % 88 to 91.4
0 to 0.0050
Antimony (Sb), % 0
0 to 0.35
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
53 to 58
Iron (Fe), % 0 to 0.2
0 to 1.5
Lead (Pb), % 0
8.0 to 11
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
11 to 14
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.15
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
1.5 to 3.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 5.1 to 6.1
17 to 25
Residuals, % 0
0 to 1.0