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Solder Alloy 702 vs. C95200 Bronze

Solder alloy 702 belongs to the otherwise unclassified metals classification, while C95200 bronze belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 702 and the bottom bar is C95200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
110
Elongation at Break, % 21
29
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
42
Tensile Strength: Ultimate (UTS), MPa 53
520

Thermal Properties

Latent Heat of Fusion, J/g 61
230
Melting Completion (Liquidus), °C 220
1050
Melting Onset (Solidus), °C 220
1040
Specific Heat Capacity, J/kg-K 220
430
Thermal Conductivity, W/m-K 62
50
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
11
Electrical Conductivity: Equal Weight (Specific), % IACS 18
12

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.3
Embodied Carbon, kg CO2/kg material 17
3.0
Embodied Energy, MJ/kg 290
50

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.6
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.0
17
Strength to Weight: Bending, points 4.2
17
Thermal Diffusivity, mm2/s 38
14
Thermal Shock Resistance, points 3.4
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
8.5 to 9.5
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
86 to 89
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
2.5 to 4.0
Lead (Pb), % 0 to 0.070
0
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.8 to 3.2
0
Tin (Sn), % 96.3 to 97.2
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 1.0