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Solder Alloy 704 vs. SAE-AISI S5 Steel

Solder alloy 704 belongs to the otherwise unclassified metals classification, while SAE-AISI S5 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 S5 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
72
Tensile Strength: Ultimate (UTS), MPa 55
680 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 62
280
Melting Completion (Liquidus), °C 240
1440
Melting Onset (Solidus), °C 220
1400
Specific Heat Capacity, J/kg-K 220
480
Thermal Conductivity, W/m-K 50
42
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.7

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 19
2.1
Embodied Energy, MJ/kg 320
29

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.1
25 to 70
Strength to Weight: Bending, points 4.3
22 to 45
Thermal Diffusivity, mm2/s 30
11
Thermal Shock Resistance, points 3.5
23 to 65

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
0.5 to 0.65
Chromium (Cr), % 0
0 to 0.5
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
93.6 to 97
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.2 to 1.4
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.8 to 2.3
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 0.35
Zinc (Zn), % 0 to 0.0010
0