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Solder Alloy 161 vs. C70260 Copper

Solder alloy 161 belongs to the otherwise unclassified metals classification, while C70260 copper belongs to the copper alloys. There are 23 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 161 and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
120
Elongation at Break, % 44
9.5 to 19
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 14
44
Tensile Strength: Ultimate (UTS), MPa 53
520 to 760

Thermal Properties

Latent Heat of Fusion, J/g 48
220
Melting Completion (Liquidus), °C 190
1060
Melting Onset (Solidus), °C 180
1040
Specific Heat Capacity, J/kg-K 190
390
Thermal Conductivity, W/m-K 49
160
Thermal Expansion, µm/m-K 25
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 11
40 to 51

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.9
Embodied Carbon, kg CO2/kg material 11
2.7
Embodied Energy, MJ/kg 180
43
Embodied Water, L/kg 910
310

Common Calculations

Stiffness to Weight: Axial, points 2.4
7.3
Stiffness to Weight: Bending, points 13
18
Strength to Weight: Axial, points 1.7
16 to 24
Strength to Weight: Bending, points 3.5
16 to 21
Thermal Diffusivity, mm2/s 29
45
Thermal Shock Resistance, points 4.1
18 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 1.2 to 1.6
95.8 to 98.8
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 37.3 to 39.3
0
Nickel (Ni), % 0 to 0.010
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.2 to 0.7
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5