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Solder Alloy 191 vs. CC496K Bronze

Solder alloy 191 belongs to the otherwise unclassified metals classification, while CC496K bronze belongs to the copper alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. 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 191 and the bottom bar is CC496K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 19
97
Elongation at Break, % 32
8.6
Poisson's Ratio 0.43
0.35
Shear Modulus, GPa 6.5
36
Tensile Strength: Ultimate (UTS), MPa 29
210

Thermal Properties

Latent Heat of Fusion, J/g 27
170
Melting Completion (Liquidus), °C 300
900
Melting Onset (Solidus), °C 300
820
Specific Heat Capacity, J/kg-K 130
340
Thermal Conductivity, W/m-K 24
52
Thermal Expansion, µm/m-K 29
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
11

Otherwise Unclassified Properties

Density, g/cm3 11
9.2
Embodied Carbon, kg CO2/kg material 5.8
3.3
Embodied Energy, MJ/kg 95
52

Common Calculations

Stiffness to Weight: Axial, points 0.93
5.9
Stiffness to Weight: Bending, points 8.0
17
Strength to Weight: Axial, points 0.72
6.5
Strength to Weight: Bending, points 1.9
8.6
Thermal Diffusivity, mm2/s 16
17
Thermal Shock Resistance, points 3.9
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
Antimony (Sb), % 0 to 0.2
0 to 0.5
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
72 to 79.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 92.4 to 94
13 to 17
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 1.2 to 1.8
0
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 4.8 to 5.2
6.0 to 8.0
Zinc (Zn), % 0 to 0.0010
0 to 2.0