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Solder Alloy 104 vs. C91700 Bronze

Solder alloy 104 belongs to the otherwise unclassified metals classification, while C91700 bronze belongs to the copper alloys. There are 23 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 104 and the bottom bar is C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
110
Elongation at Break, % 46
13
Poisson's Ratio 0.39
0.34
Shear Modulus, GPa 13
41
Tensile Strength: Ultimate (UTS), MPa 51
330

Thermal Properties

Latent Heat of Fusion, J/g 45
190
Melting Completion (Liquidus), °C 190
1020
Melting Onset (Solidus), °C 180
850
Specific Heat Capacity, J/kg-K 180
370
Thermal Conductivity, W/m-K 50
71
Thermal Expansion, µm/m-K 25
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
10
Electrical Conductivity: Equal Weight (Specific), % IACS 11
10

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.7
Embodied Carbon, kg CO2/kg material 10
3.9
Embodied Energy, MJ/kg 180
63
Embodied Water, L/kg 900
400

Common Calculations

Stiffness to Weight: Axial, points 2.3
6.9
Stiffness to Weight: Bending, points 12
18
Strength to Weight: Axial, points 1.6
11
Strength to Weight: Bending, points 3.4
12
Thermal Diffusivity, mm2/s 30
22
Thermal Shock Resistance, points 4.0
12

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.050
0 to 0.2
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.050
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.080
84.2 to 87.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.2
Lead (Pb), % 39 to 40.5
0 to 0.25
Nickel (Ni), % 0 to 0.010
1.2 to 2.0
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 59.5 to 60.5
11.3 to 12.5
Zinc (Zn), % 0 to 0.0010
0 to 0.25