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Solder Alloy 123 vs. AWS BNi-7

Solder alloy 123 belongs to the otherwise unclassified metals classification, while AWS BNi-7 belongs to the nickel alloys. There are 19 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 AWS BNi-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
170
Poisson's Ratio 0.44
0.3
Shear Modulus, GPa 6.2
67
Tensile Strength: Ultimate (UTS), MPa 28
550

Thermal Properties

Latent Heat of Fusion, J/g 26
280
Melting Completion (Liquidus), °C 310
890
Melting Onset (Solidus), °C 300
890
Specific Heat Capacity, J/kg-K 130
490
Thermal Expansion, µm/m-K 29
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
55
Density, g/cm3 11
8.0
Embodied Carbon, kg CO2/kg material 4.5
8.8
Embodied Energy, MJ/kg 74
120
Embodied Water, L/kg 500
240

Common Calculations

Stiffness to Weight: Axial, points 0.9
12
Stiffness to Weight: Bending, points 7.8
23
Strength to Weight: Axial, points 0.69
19
Strength to Weight: Bending, points 1.8
19
Thermal Shock Resistance, points 3.8
21

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.050
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Boron (B), % 0
0 to 0.010
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
13 to 15
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.2
Lead (Pb), % 93.5 to 95.5
0
Manganese (Mn), % 0
0 to 0.040
Nickel (Ni), % 0 to 0.010
73.3 to 77.3
Phosphorus (P), % 0
9.7 to 10.5
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 4.5 to 5.5
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5