Solder Alloy 704 vs. SAE-AISI S7 Steel
Solder alloy 704 belongs to the otherwise unclassified metals classification, while SAE-AISI S7 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is solder alloy 704 and the bottom bar is SAE-AISI S7 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 51 | |
190 |
Poisson's Ratio | 0.36 | |
0.29 |
Shear Modulus, GPa | 19 | |
74 |
Tensile Strength: Ultimate (UTS), MPa | 55 | |
670 to 2030 |
Thermal Properties
Latent Heat of Fusion, J/g | 62 | |
260 |
Melting Completion (Liquidus), °C | 240 | |
1460 |
Melting Onset (Solidus), °C | 220 | |
1420 |
Specific Heat Capacity, J/kg-K | 220 | |
470 |
Thermal Conductivity, W/m-K | 50 | |
40 |
Thermal Expansion, µm/m-K | 22 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 13 | |
7.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 15 | |
9.0 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.5 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 19 | |
2.3 |
Embodied Energy, MJ/kg | 320 | |
31 |
Common Calculations
Stiffness to Weight: Axial, points | 3.8 | |
14 |
Stiffness to Weight: Bending, points | 17 | |
25 |
Strength to Weight: Axial, points | 2.1 | |
24 to 72 |
Strength to Weight: Bending, points | 4.3 | |
22 to 46 |
Thermal Diffusivity, mm2/s | 30 | |
11 |
Thermal Shock Resistance, points | 3.5 | |
22 to 66 |
Alloy Composition
Aluminum (Al), % | 0 to 0.0010 | |
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 | |
0.45 to 0.55 |
Chromium (Cr), % | 0 | |
3.0 to 3.5 |
Copper (Cu), % | 0 to 0.050 | |
0 to 0.25 |
Gold (Au), % | 0 to 0.050 | |
0 |
Indium (In), % | 0 to 0.1 | |
0 |
Iron (Fe), % | 0 to 0.020 | |
91.6 to 94.9 |
Lead (Pb), % | 0 to 0.070 | |
0 |
Manganese (Mn), % | 0 | |
0.2 to 0.9 |
Molybdenum (Mo), % | 0 | |
1.3 to 1.8 |
Nickel (Ni), % | 0 to 0.010 | |
0 |
Phosphorus (P), % | 0 | |
0 to 0.030 |
Silicon (Si), % | 0 | |
0.2 to 1.0 |
Silver (Ag), % | 4.8 to 5.2 | |
0 |
Sulfur (S), % | 0 | |
0 to 0.030 |
Tin (Sn), % | 94.3 to 95.2 | |
0 |
Vanadium (V), % | 0 | |
0 to 0.3 |
Zinc (Zn), % | 0 to 0.0010 | |
0 |