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Solder Alloy 702 vs. Grade 19 Titanium

Solder alloy 702 belongs to the otherwise unclassified metals classification, while grade 19 titanium belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 702 and the bottom bar is grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 21
5.6 to 17
Poisson's Ratio 0.36
0.32
Shear Modulus, GPa 19
47
Tensile Strength: Ultimate (UTS), MPa 53
890 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 61
400
Melting Completion (Liquidus), °C 220
1660
Melting Onset (Solidus), °C 220
1600
Specific Heat Capacity, J/kg-K 220
520
Thermal Conductivity, W/m-K 62
6.2
Thermal Expansion, µm/m-K 22
9.1

Otherwise Unclassified Properties

Density, g/cm3 7.4
5.0
Embodied Carbon, kg CO2/kg material 17
47
Embodied Energy, MJ/kg 290
760

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
33
Strength to Weight: Axial, points 2.0
49 to 72
Strength to Weight: Bending, points 4.2
41 to 53
Thermal Diffusivity, mm2/s 38
2.4
Thermal Shock Resistance, points 3.4
57 to 83

Alloy Composition


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Aluminum (Al), % 0 to 0.0010
3.0 to 4.0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
5.5 to 6.5
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.020
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.3
Lead (Pb), % 0 to 0.070
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Silver (Ag), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
0
Titanium (Ti), % 0
71.1 to 77
Vanadium (V), % 0
7.5 to 8.5
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4