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Solder Alloy 703 vs. 70Ag-30Ni Alloy

Both solder alloy 703 and 70Ag-30Ni alloy are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 703 and the bottom bar is 70Ag-30Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
100
Poisson's Ratio 0.36
0.35
Shear Modulus, GPa 19
39
Tensile Strength: Ultimate (UTS), MPa 57
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 61
170
Melting Completion (Liquidus), °C 220
960
Melting Onset (Solidus), °C 220
960
Specific Heat Capacity, J/kg-K 220
300
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
69
Electrical Conductivity: Equal Weight (Specific), % IACS 17
62

Otherwise Unclassified Properties

Density, g/cm3 7.4
10

Common Calculations

Stiffness to Weight: Axial, points 3.8
5.8
Stiffness to Weight: Bending, points 17
16
Strength to Weight: Axial, points 2.1
8.8 to 15
Strength to Weight: Bending, points 4.4
10 to 15
Thermal Shock Resistance, points 3.7
13 to 21

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
28.8 to 31
Silver (Ag), % 3.3 to 3.7
69 to 71
Tin (Sn), % 95.8 to 96.7
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.2