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Solder Alloy 123 vs. C66900 Brass

Solder alloy 123 belongs to the otherwise unclassified metals classification, while C66900 brass belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 123 and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
120
Elongation at Break, % 45
1.1 to 26
Poisson's Ratio 0.44
0.32
Shear Modulus, GPa 6.2
45
Tensile Strength: Ultimate (UTS), MPa 28
460 to 770

Thermal Properties

Latent Heat of Fusion, J/g 26
190
Melting Completion (Liquidus), °C 310
860
Melting Onset (Solidus), °C 300
850
Specific Heat Capacity, J/kg-K 130
400
Thermal Expansion, µm/m-K 29
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 75
23
Density, g/cm3 11
8.2
Embodied Carbon, kg CO2/kg material 4.5
2.8
Embodied Energy, MJ/kg 74
46
Embodied Water, L/kg 500
310

Common Calculations

Stiffness to Weight: Axial, points 0.9
8.1
Stiffness to Weight: Bending, points 7.8
20
Strength to Weight: Axial, points 0.69
15 to 26
Strength to Weight: Bending, points 1.8
16 to 23
Thermal Shock Resistance, points 3.8
14 to 23

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 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.080
62.5 to 64.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 93.5 to 95.5
0 to 0.050
Manganese (Mn), % 0
11.5 to 12.5
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 4.5 to 5.5
0
Zinc (Zn), % 0 to 0.0010
22.5 to 26
Residuals, % 0
0 to 0.2