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C97800 Nickel Silver vs. 7021 Aluminum

C97800 nickel silver belongs to the copper alloys classification, while 7021 aluminum belongs to the aluminum 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 C97800 nickel silver and the bottom bar is 7021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
69
Elongation at Break, % 10
9.4
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 48
26
Tensile Strength: Ultimate (UTS), MPa 370
460
Tensile Strength: Yield (Proof), MPa 170
390

Thermal Properties

Latent Heat of Fusion, J/g 220
380
Maximum Temperature: Mechanical, °C 230
200
Melting Completion (Liquidus), °C 1180
630
Melting Onset (Solidus), °C 1140
510
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 25
150
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.0
38
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
120

Otherwise Unclassified Properties

Base Metal Price, % relative 40
9.5
Density, g/cm3 8.8
2.9
Embodied Carbon, kg CO2/kg material 5.1
8.3
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 330
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
41
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1110
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 19
47
Strength to Weight: Axial, points 12
44
Strength to Weight: Bending, points 13
45
Thermal Diffusivity, mm2/s 7.3
59
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 0 to 0.0050
90.7 to 93.7
Antimony (Sb), % 0 to 0.2
0
Chromium (Cr), % 0
0 to 0.050
Copper (Cu), % 64 to 67
0 to 0.25
Iron (Fe), % 0 to 1.5
0 to 0.4
Lead (Pb), % 1.0 to 2.5
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.15
0 to 0.25
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 5.5
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 1.0 to 4.0
5.0 to 6.0
Zirconium (Zr), % 0
0.080 to 0.18
Residuals, % 0
0 to 0.15