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Solder Alloy 702 vs. Nickel 625

Solder alloy 702 belongs to the otherwise unclassified metals classification, while nickel 625 belongs to the nickel alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is solder alloy 702 and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 21
33 to 34
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
79
Tensile Strength: Ultimate (UTS), MPa 53
790 to 910

Thermal Properties

Latent Heat of Fusion, J/g 61
330
Melting Completion (Liquidus), °C 220
1350
Melting Onset (Solidus), °C 220
1290
Specific Heat Capacity, J/kg-K 220
440
Thermal Conductivity, W/m-K 62
11
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 18
1.4

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.6
Embodied Carbon, kg CO2/kg material 17
14
Embodied Energy, MJ/kg 290
190

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
23
Strength to Weight: Axial, points 2.0
26 to 29
Strength to Weight: Bending, points 4.2
22 to 24
Thermal Diffusivity, mm2/s 38
2.9
Thermal Shock Resistance, points 3.4
22 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.4
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 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 1.0
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 to 5.0
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0 to 0.010
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 2.8 to 3.2
0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 96.3 to 97.2
0
Titanium (Ti), % 0
0 to 0.4
Zinc (Zn), % 0 to 0.0010
0