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Solder Alloy 181 vs. C72800 Copper-nickel

Solder alloy 181 belongs to the otherwise unclassified metals classification, while C72800 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is C72800 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
120
Elongation at Break, % 41
3.9 to 23
Poisson's Ratio 0.44
0.34
Shear Modulus, GPa 6.1
44
Tensile Strength: Ultimate (UTS), MPa 27
520 to 1270

Thermal Properties

Latent Heat of Fusion, J/g 26
210
Melting Completion (Liquidus), °C 310
1080
Melting Onset (Solidus), °C 300
920
Specific Heat Capacity, J/kg-K 130
380
Thermal Conductivity, W/m-K 24
55
Thermal Expansion, µm/m-K 29
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
11

Otherwise Unclassified Properties

Density, g/cm3 11
8.8
Embodied Carbon, kg CO2/kg material 6.2
4.4
Embodied Energy, MJ/kg 100
68

Common Calculations

Stiffness to Weight: Axial, points 0.86
7.4
Stiffness to Weight: Bending, points 7.7
19
Strength to Weight: Axial, points 0.66
17 to 40
Strength to Weight: Bending, points 1.8
16 to 30
Thermal Diffusivity, mm2/s 16
17
Thermal Shock Resistance, points 3.8
19 to 45

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.1
Antimony (Sb), % 0 to 0.2
0 to 0.020
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0 to 0.0010
Boron (B), % 0
0 to 0.0010
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
78.3 to 82.8
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.5
Lead (Pb), % 96.2 to 98
0 to 0.0050
Magnesium (Mg), % 0
0.0050 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Nickel (Ni), % 0 to 0.010
9.5 to 10.5
Niobium (Nb), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.050
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.0025
Tin (Sn), % 0 to 0.25
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.0010
0 to 1.0
Residuals, % 0
0 to 0.3