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Solder Alloy 704 vs. C76400 Nickel Silver

Solder alloy 704 belongs to the otherwise unclassified metals classification, while C76400 nickel silver belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is C76400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 19
46
Tensile Strength: Ultimate (UTS), MPa 55
590 to 610

Thermal Properties

Latent Heat of Fusion, J/g 62
200
Melting Completion (Liquidus), °C 240
990
Melting Onset (Solidus), °C 220
950
Specific Heat Capacity, J/kg-K 220
400
Thermal Conductivity, W/m-K 50
31
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 15
6.1

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.4
Embodied Carbon, kg CO2/kg material 19
4.1
Embodied Energy, MJ/kg 320
63

Common Calculations

Stiffness to Weight: Axial, points 3.8
8.1
Stiffness to Weight: Bending, points 17
20
Strength to Weight: Axial, points 2.1
19 to 20
Strength to Weight: Bending, points 4.3
18 to 19
Thermal Diffusivity, mm2/s 30
9.3
Thermal Shock Resistance, points 3.5
19 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
58.5 to 61.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 0 to 0.070
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
16.5 to 19.5
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
17.7 to 25
Residuals, % 0
0 to 0.5