Solder Alloy 191 vs. Type 4 Niobium
Both solder alloy 191 and Type 4 niobium are otherwise unclassified metals. There are 16 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 191 and the bottom bar is Type 4 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 19 | |
| 110 |
| Elongation at Break, % | 32 | |
| 23 |
| Poisson's Ratio | 0.43 | |
| 0.4 |
| Shear Modulus, GPa | 6.5 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 29 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 27 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 270 |
| Thermal Conductivity, W/m-K | 24 | |
| 42 |
| Thermal Expansion, µm/m-K | 29 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 8.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.93 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 8.0 | |
| 18 |
| Strength to Weight: Axial, points | 0.72 | |
| 7.2 |
| Strength to Weight: Bending, points | 1.9 | |
| 9.5 |
| Thermal Diffusivity, mm2/s | 16 | |
| 18 |
| Thermal Shock Resistance, points | 3.9 | |
| 21 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 0 |
| Antimony (Sb), % | 0 to 0.2 | |
| 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 0.010 |
| Copper (Cu), % | 0 to 0.080 | |
| 0 |
| Gold (Au), % | 0 to 0.050 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 0.020 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Indium (In), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.020 | |
| 0 to 0.010 |
| Lead (Pb), % | 92.4 to 94 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 0.0050 |
| Niobium (Nb), % | 0 | |
| 98.1 to 99.2 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0 to 0.0050 |
| Silver (Ag), % | 1.2 to 1.8 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Tin (Sn), % | 4.8 to 5.2 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.8 to 1.2 |