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Solder Alloy 181 vs. CC494K Bronze

Solder alloy 181 belongs to the otherwise unclassified metals classification, while CC494K 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 181 and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
100
Elongation at Break, % 41
7.6
Poisson's Ratio 0.44
0.35
Shear Modulus, GPa 6.1
39
Tensile Strength: Ultimate (UTS), MPa 27
210

Thermal Properties

Latent Heat of Fusion, J/g 26
180
Melting Completion (Liquidus), °C 310
970
Melting Onset (Solidus), °C 300
890
Specific Heat Capacity, J/kg-K 130
360
Thermal Conductivity, W/m-K 24
63
Thermal Expansion, µm/m-K 29
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
16
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
16

Otherwise Unclassified Properties

Density, g/cm3 11
9.1
Embodied Carbon, kg CO2/kg material 6.2
3.1
Embodied Energy, MJ/kg 100
50

Common Calculations

Stiffness to Weight: Axial, points 0.86
6.4
Stiffness to Weight: Bending, points 7.7
17
Strength to Weight: Axial, points 0.66
6.5
Strength to Weight: Bending, points 1.8
8.8
Thermal Diffusivity, mm2/s 16
19
Thermal Shock Resistance, points 3.8
7.8

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
78 to 87
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), % 96.2 to 98
8.0 to 10
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 0.25
4.0 to 6.0
Zinc (Zn), % 0 to 0.0010
0 to 2.0