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Solder Alloy 122 vs. C19000 Copper

Solder alloy 122 belongs to the otherwise unclassified metals classification, while C19000 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 122 and the bottom bar is C19000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 20
120
Elongation at Break, % 30
2.5 to 50
Poisson's Ratio 0.43
0.34
Shear Modulus, GPa 6.9
43
Tensile Strength: Ultimate (UTS), MPa 30
260 to 760

Thermal Properties

Latent Heat of Fusion, J/g 27
210
Melting Completion (Liquidus), °C 300
1080
Melting Onset (Solidus), °C 270
1040
Specific Heat Capacity, J/kg-K 140
390
Thermal Conductivity, W/m-K 25
250
Thermal Expansion, µm/m-K 28
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
60
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
61

Otherwise Unclassified Properties

Base Metal Price, % relative 75
31
Density, g/cm3 11
8.9
Embodied Carbon, kg CO2/kg material 5.0
2.7
Embodied Energy, MJ/kg 84
42
Embodied Water, L/kg 540
310

Common Calculations

Stiffness to Weight: Axial, points 1.0
7.2
Stiffness to Weight: Bending, points 8.2
18
Strength to Weight: Axial, points 0.77
8.2 to 24
Strength to Weight: Bending, points 2.0
10 to 21
Thermal Diffusivity, mm2/s 17
73
Thermal Shock Resistance, points 3.9
9.3 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.080
96.9 to 99
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 88.4 to 90.5
0 to 0.050
Nickel (Ni), % 0 to 0.010
0.9 to 1.3
Phosphorus (P), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0 to 0.0010
0 to 0.8
Residuals, % 0
0 to 0.5