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C94100 Bronze vs. Solder Alloy 181

C94100 bronze belongs to the copper alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. 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 C94100 bronze and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 92
18
Elongation at Break, % 7.8
41
Poisson's Ratio 0.36
0.44
Shear Modulus, GPa 34
6.1
Tensile Strength: Ultimate (UTS), MPa 190
27

Thermal Properties

Latent Heat of Fusion, J/g 160
26
Melting Completion (Liquidus), °C 870
310
Melting Onset (Solidus), °C 790
300
Specific Heat Capacity, J/kg-K 330
130
Thermal Expansion, µm/m-K 20
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
7.4

Otherwise Unclassified Properties

Density, g/cm3 9.2
11
Embodied Carbon, kg CO2/kg material 3.0
6.2
Embodied Energy, MJ/kg 48
100

Common Calculations

Stiffness to Weight: Axial, points 5.5
0.86
Stiffness to Weight: Bending, points 16
7.7
Strength to Weight: Axial, points 5.8
0.66
Strength to Weight: Bending, points 8.1
1.8
Thermal Shock Resistance, points 7.6
3.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0010
Antimony (Sb), % 0 to 0.8
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 72 to 79
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.25
0 to 0.020
Lead (Pb), % 18 to 22
96.2 to 98
Nickel (Ni), % 0 to 1.0
0 to 0.010
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.5 to 6.5
0 to 0.25
Zinc (Zn), % 0 to 1.0
0 to 0.0010
Residuals, % 0 to 1.3
0