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Solder Alloy 703 vs. Commercially Pure Silver

Both solder alloy 703 and commercially pure silver are otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is commercially pure silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
71
Elongation at Break, % 35
1.1 to 29
Poisson's Ratio 0.36
0.37
Shear Modulus, GPa 19
26
Tensile Strength: Ultimate (UTS), MPa 57
190 to 340

Thermal Properties

Latent Heat of Fusion, J/g 61
110
Melting Completion (Liquidus), °C 220
960
Melting Onset (Solidus), °C 220
960
Specific Heat Capacity, J/kg-K 220
240
Thermal Conductivity, W/m-K 55
420
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
100
Electrical Conductivity: Equal Weight (Specific), % IACS 17
87

Otherwise Unclassified Properties

Density, g/cm3 7.4
10

Common Calculations

Stiffness to Weight: Axial, points 3.8
3.8
Stiffness to Weight: Bending, points 17
13
Strength to Weight: Axial, points 2.1
4.9 to 8.9
Strength to Weight: Bending, points 4.4
6.9 to 10
Thermal Diffusivity, mm2/s 33
170
Thermal Shock Resistance, points 3.7
9.5 to 17

Alloy Composition


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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
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 3.3 to 3.7
99.9 to 100
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.1