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C50100 Bronze vs. Solder Alloy 121

C50100 bronze belongs to the copper alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 24 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 C50100 bronze and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
21
Elongation at Break, % 40
25
Poisson's Ratio 0.34
0.43
Shear Modulus, GPa 43
7.5
Tensile Strength: Ultimate (UTS), MPa 270
32

Thermal Properties

Latent Heat of Fusion, J/g 210
29
Melting Completion (Liquidus), °C 1080
290
Melting Onset (Solidus), °C 1070
230
Specific Heat Capacity, J/kg-K 380
140
Thermal Conductivity, W/m-K 230
31
Thermal Expansion, µm/m-K 17
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 55
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 55
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
80
Density, g/cm3 8.9
11
Embodied Carbon, kg CO2/kg material 2.6
5.6
Embodied Energy, MJ/kg 42
93
Embodied Water, L/kg 310
580

Common Calculations

Stiffness to Weight: Axial, points 7.2
1.1
Stiffness to Weight: Bending, points 18
8.6
Strength to Weight: Axial, points 8.3
0.84
Strength to Weight: Bending, points 10
2.1
Thermal Diffusivity, mm2/s 66
20
Thermal Shock Resistance, points 9.5
3.9

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 98.6 to 99.49
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.050
0 to 0.020
Lead (Pb), % 0 to 0.050
83.4 to 85.5
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0.010 to 0.050
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0.5 to 0.8
14.5 to 15.5
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.5
0