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Solder Alloy 402 vs. C94300 Bronze

Solder alloy 402 belongs to the otherwise unclassified metals classification, while C94300 bronze belongs to the copper alloys. There are 23 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 402 and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
87
Elongation at Break, % 20
9.7
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 19
32
Tensile Strength: Ultimate (UTS), MPa 57
180

Thermal Properties

Latent Heat of Fusion, J/g 64
150
Melting Completion (Liquidus), °C 310
820
Melting Onset (Solidus), °C 230
760
Specific Heat Capacity, J/kg-K 230
320
Thermal Conductivity, W/m-K 61
63
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 18
8.7

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.3
Embodied Carbon, kg CO2/kg material 15
2.9
Embodied Energy, MJ/kg 250
47
Embodied Water, L/kg 1180
370

Common Calculations

Stiffness to Weight: Axial, points 3.9
5.2
Stiffness to Weight: Bending, points 17
16
Strength to Weight: Axial, points 2.2
5.2
Strength to Weight: Bending, points 4.5
7.4
Thermal Diffusivity, mm2/s 37
21
Thermal Shock Resistance, points 3.6
7.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.1
0 to 0.8
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 2.5 to 3.5
67 to 72
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.15
Lead (Pb), % 0 to 0.070
23 to 27
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 95.9 to 97.5
4.5 to 6.0
Zinc (Zn), % 0 to 0.0010
0 to 0.8
Residuals, % 0
0 to 1.0