MakeItFrom.com
Menu (ESC)

Solder Alloy 721 vs. C97800 Nickel Silver

Solder alloy 721 belongs to the otherwise unclassified metals classification, while C97800 nickel silver belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 721 and the bottom bar is C97800 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
130
Elongation at Break, % 17
10
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 19
48
Tensile Strength: Ultimate (UTS), MPa 50
370

Thermal Properties

Latent Heat of Fusion, J/g 61
220
Melting Completion (Liquidus), °C 220
1180
Melting Onset (Solidus), °C 210
1140
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 56
25
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
4.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
4.1

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.8
Embodied Carbon, kg CO2/kg material 17
5.1
Embodied Energy, MJ/kg 280
76

Common Calculations

Stiffness to Weight: Axial, points 3.8
8.1
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 1.9
12
Strength to Weight: Bending, points 4.1
13
Thermal Diffusivity, mm2/s 34
7.3
Thermal Shock Resistance, points 3.2
13

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.2
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0.8 to 1.2
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0.3 to 0.7
64 to 67
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 1.5
Lead (Pb), % 0 to 0.070
1.0 to 2.5
Nickel (Ni), % 0 to 0.010
24 to 27
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.15
Silver (Ag), % 2.3 to 2.7
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 95 to 96.6
4.0 to 5.5
Zinc (Zn), % 0 to 0.0010
1.0 to 4.0
Residuals, % 0
0 to 0.4