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Solder Alloy 191 vs. C94900 Bronze

Solder alloy 191 belongs to the otherwise unclassified metals classification, while C94900 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 191 and the bottom bar is C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 19
110
Elongation at Break, % 32
17
Poisson's Ratio 0.43
0.34
Shear Modulus, GPa 6.5
41
Tensile Strength: Ultimate (UTS), MPa 29
300

Thermal Properties

Latent Heat of Fusion, J/g 27
190
Melting Completion (Liquidus), °C 300
980
Melting Onset (Solidus), °C 300
910
Specific Heat Capacity, J/kg-K 130
370
Thermal Expansion, µm/m-K 29
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
14
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
14

Otherwise Unclassified Properties

Density, g/cm3 11
8.8
Embodied Carbon, kg CO2/kg material 5.8
3.4
Embodied Energy, MJ/kg 95
55

Common Calculations

Stiffness to Weight: Axial, points 0.93
6.9
Stiffness to Weight: Bending, points 8.0
18
Strength to Weight: Axial, points 0.72
9.4
Strength to Weight: Bending, points 1.9
11
Thermal Shock Resistance, points 3.9
11

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.0050
Antimony (Sb), % 0 to 0.2
0 to 0.25
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 0.080
79 to 81
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.3
Lead (Pb), % 92.4 to 94
4.0 to 6.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.010
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 1.2 to 1.8
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 4.8 to 5.2
4.0 to 6.0
Zinc (Zn), % 0 to 0.0010
4.0 to 6.0
Residuals, % 0
0 to 0.8