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Solder Alloy 124 vs. C70700 Copper-nickel

Solder alloy 124 belongs to the otherwise unclassified metals classification, while C70700 copper-nickel belongs to the copper alloys. There are 24 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 124 and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
120
Elongation at Break, % 46
39
Poisson's Ratio 0.44
0.34
Shear Modulus, GPa 5.8
46
Tensile Strength: Ultimate (UTS), MPa 27
320

Thermal Properties

Latent Heat of Fusion, J/g 24
220
Melting Completion (Liquidus), °C 330
1120
Melting Onset (Solidus), °C 320
1060
Specific Heat Capacity, J/kg-K 130
390
Thermal Conductivity, W/m-K 22
59
Thermal Expansion, µm/m-K 29
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
34
Density, g/cm3 11
8.9
Embodied Carbon, kg CO2/kg material 4.1
3.4
Embodied Energy, MJ/kg 68
52
Embodied Water, L/kg 470
300

Common Calculations

Stiffness to Weight: Axial, points 0.83
7.6
Stiffness to Weight: Bending, points 7.6
19
Strength to Weight: Axial, points 0.65
10
Strength to Weight: Bending, points 1.8
12
Thermal Diffusivity, mm2/s 15
17
Thermal Shock Resistance, points 3.9
12

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.12
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 0.080
88.5 to 90.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.050
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
9.5 to 10.5
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 1.8 to 2.2
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5