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Solder Alloy 123 vs. AWS E70C-Ni2

Solder alloy 123 belongs to the otherwise unclassified metals classification, while AWS E70C-Ni2 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 123 and the bottom bar is AWS E70C-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
190
Elongation at Break, % 45
27
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.2
72
Tensile Strength: Ultimate (UTS), MPa 28
560

Thermal Properties

Latent Heat of Fusion, J/g 26
250
Melting Completion (Liquidus), °C 310
1450
Melting Onset (Solidus), °C 300
1410
Specific Heat Capacity, J/kg-K 130
470
Thermal Conductivity, W/m-K 23
52
Thermal Expansion, µm/m-K 29
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 75
3.3
Density, g/cm3 11
7.8
Embodied Carbon, kg CO2/kg material 4.5
1.6
Embodied Energy, MJ/kg 74
22
Embodied Water, L/kg 500
51

Common Calculations

Stiffness to Weight: Axial, points 0.9
13
Stiffness to Weight: Bending, points 7.8
24
Strength to Weight: Axial, points 0.69
20
Strength to Weight: Bending, points 1.8
19
Thermal Diffusivity, mm2/s 16
14
Thermal Shock Resistance, points 3.8
17

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
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.080
0 to 0.35
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
94.1 to 98.3
Lead (Pb), % 93.5 to 95.5
0
Manganese (Mn), % 0
0 to 1.3
Nickel (Ni), % 0 to 0.010
1.8 to 2.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.9
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 4.5 to 5.5
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5