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C61800 Bronze vs. Solder Alloy 702

C61800 bronze belongs to the copper alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C61800 bronze and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
51
Elongation at Break, % 26
21
Poisson's Ratio 0.34
0.36
Shear Modulus, GPa 44
19
Tensile Strength: Ultimate (UTS), MPa 740
53

Thermal Properties

Latent Heat of Fusion, J/g 230
61
Melting Completion (Liquidus), °C 1050
220
Melting Onset (Solidus), °C 1040
220
Specific Heat Capacity, J/kg-K 440
220
Thermal Conductivity, W/m-K 64
62
Thermal Expansion, µm/m-K 18
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
15
Electrical Conductivity: Equal Weight (Specific), % IACS 14
18

Otherwise Unclassified Properties

Density, g/cm3 8.3
7.4
Embodied Carbon, kg CO2/kg material 3.1
17
Embodied Energy, MJ/kg 52
290

Common Calculations

Stiffness to Weight: Axial, points 7.5
3.8
Stiffness to Weight: Bending, points 19
17
Strength to Weight: Axial, points 25
2.0
Strength to Weight: Bending, points 22
4.2
Thermal Diffusivity, mm2/s 18
38
Thermal Shock Resistance, points 26
3.4

Alloy Composition

Aluminum (Al), % 8.5 to 11
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 86.9 to 91
0 to 0.050
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0.5 to 1.5
0 to 0.020
Lead (Pb), % 0 to 0.020
0 to 0.070
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
2.8 to 3.2
Tin (Sn), % 0
96.3 to 97.2
Zinc (Zn), % 0 to 0.020
0 to 0.0010
Residuals, % 0 to 0.5
0