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Solder Alloy 123 vs. C99500 Copper

Solder alloy 123 belongs to the otherwise unclassified metals classification, while C99500 copper belongs to the copper alloys. There are 22 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 123 and the bottom bar is C99500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
120
Elongation at Break, % 45
13
Poisson's Ratio 0.44
0.34
Shear Modulus, GPa 6.2
45
Tensile Strength: Ultimate (UTS), MPa 28
540

Thermal Properties

Latent Heat of Fusion, J/g 26
240
Melting Completion (Liquidus), °C 310
1090
Melting Onset (Solidus), °C 300
1040
Specific Heat Capacity, J/kg-K 130
400
Thermal Expansion, µm/m-K 29
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
10
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
10

Otherwise Unclassified Properties

Base Metal Price, % relative 75
30
Density, g/cm3 11
8.7
Embodied Carbon, kg CO2/kg material 4.5
3.0
Embodied Energy, MJ/kg 74
47
Embodied Water, L/kg 500
300

Common Calculations

Stiffness to Weight: Axial, points 0.9
7.7
Stiffness to Weight: Bending, points 7.8
19
Strength to Weight: Axial, points 0.69
17
Strength to Weight: Bending, points 1.8
17
Thermal Shock Resistance, points 3.8
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0.5 to 2.0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.080
82.5 to 92
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
3.0 to 5.0
Lead (Pb), % 93.5 to 95.5
0 to 0.25
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
3.5 to 5.5
Silicon (Si), % 0
0.5 to 2.0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 4.5 to 5.5
0
Zinc (Zn), % 0 to 0.0010
0.5 to 2.0
Residuals, % 0
0 to 0.3