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Solder Alloy 123 vs. Titanium 6-7

Solder alloy 123 belongs to the otherwise unclassified metals classification, while titanium 6-7 belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 123 and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
120
Elongation at Break, % 45
11
Poisson's Ratio 0.44
0.33
Shear Modulus, GPa 6.2
45
Tensile Strength: Ultimate (UTS), MPa 28
1020

Thermal Properties

Latent Heat of Fusion, J/g 26
410
Melting Completion (Liquidus), °C 310
1700
Melting Onset (Solidus), °C 300
1650
Specific Heat Capacity, J/kg-K 130
520
Thermal Expansion, µm/m-K 29
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 75
75
Density, g/cm3 11
5.1
Embodied Carbon, kg CO2/kg material 4.5
34
Embodied Energy, MJ/kg 74
540
Embodied Water, L/kg 500
190

Common Calculations

Stiffness to Weight: Axial, points 0.9
13
Stiffness to Weight: Bending, points 7.8
32
Strength to Weight: Axial, points 0.69
56
Strength to Weight: Bending, points 1.8
44
Thermal Shock Resistance, points 3.8
66

Alloy Composition

Aluminum (Al), % 0 to 0.0010
5.5 to 6.5
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
Gold (Au), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.0090
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
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silver (Ag), % 0 to 0.1
0
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 4.5 to 5.5
0
Titanium (Ti), % 0
84.9 to 88
Zinc (Zn), % 0 to 0.0010
0