Solder Alloy 182 vs. Solder Alloy 181
Both solder alloy 182 and solder alloy 181 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is solder alloy 182 and the bottom bar is solder alloy 181.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 19 | |
18 |
Elongation at Break, % | 37 | |
41 |
Poisson's Ratio | 0.44 | |
0.44 |
Shear Modulus, GPa | 6.7 | |
6.1 |
Tensile Strength: Ultimate (UTS), MPa | 28 | |
27 |
Thermal Properties
Latent Heat of Fusion, J/g | 28 | |
26 |
Melting Completion (Liquidus), °C | 370 | |
310 |
Melting Onset (Solidus), °C | 300 | |
300 |
Specific Heat Capacity, J/kg-K | 130 | |
130 |
Thermal Conductivity, W/m-K | 27 | |
24 |
Thermal Expansion, µm/m-K | 29 | |
29 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 9.6 | |
9.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 7.6 | |
7.4 |
Otherwise Unclassified Properties
Density, g/cm3 | 11 | |
11 |
Embodied Carbon, kg CO2/kg material | 9.0 | |
6.2 |
Embodied Energy, MJ/kg | 140 | |
100 |
Common Calculations
Stiffness to Weight: Axial, points | 0.95 | |
0.86 |
Stiffness to Weight: Bending, points | 7.9 | |
7.7 |
Strength to Weight: Axial, points | 0.69 | |
0.66 |
Strength to Weight: Bending, points | 1.8 | |
1.8 |
Thermal Diffusivity, mm2/s | 18 | |
16 |
Thermal Shock Resistance, points | 3.7 | |
3.8 |
Alloy Composition
Aluminum (Al), % | 0 to 0.0010 | |
0 to 0.0010 |
Antimony (Sb), % | 0 to 0.2 | |
0 to 0.2 |
Arsenic (As), % | 0 to 0.030 | |
0 to 0.030 |
Bismuth (Bi), % | 0 to 0.1 | |
0 to 0.1 |
Cadmium (Cd), % | 0 to 0.0020 | |
0 to 0.0020 |
Copper (Cu), % | 0 to 0.080 | |
0 to 0.080 |
Gold (Au), % | 0 to 0.050 | |
0 to 0.050 |
Indium (In), % | 0 to 0.1 | |
0 to 0.1 |
Iron (Fe), % | 0 to 0.020 | |
0 to 0.020 |
Lead (Pb), % | 93.2 to 95 | |
96.2 to 98 |
Nickel (Ni), % | 0 to 0.010 | |
0 to 0.010 |
Silver (Ag), % | 5.0 to 6.0 | |
2.0 to 3.0 |
Tin (Sn), % | 0 to 0.25 | |
0 to 0.25 |
Zinc (Zn), % | 0 to 0.0010 | |
0 to 0.0010 |