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Solder Alloy 811 vs. C18700 Copper

Solder alloy 811 belongs to the otherwise unclassified metals classification, while C18700 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 811 and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
110
Elongation at Break, % 38
9.0 to 9.6
Poisson's Ratio 0.35
0.34
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 53
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 63
210
Melting Completion (Liquidus), °C 200
1080
Melting Onset (Solidus), °C 190
950
Specific Heat Capacity, J/kg-K 230
380
Thermal Conductivity, W/m-K 59
380
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
98
Electrical Conductivity: Equal Weight (Specific), % IACS 17
99

Otherwise Unclassified Properties

Density, g/cm3 7.3
9.0
Embodied Carbon, kg CO2/kg material 14
2.6
Embodied Energy, MJ/kg 240
41
Embodied Water, L/kg 1200
310

Common Calculations

Stiffness to Weight: Axial, points 4.0
7.1
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.0
9.0 to 10
Strength to Weight: Bending, points 4.3
11 to 12
Thermal Diffusivity, mm2/s 35
110
Thermal Shock Resistance, points 3.3
10 to 12

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 2.8 to 3.2
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
98 to 99.2
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0
Lead (Pb), % 0 to 0.070
0.8 to 1.5
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 87.8 to 89.7
0
Zinc (Zn), % 7.5 to 8.5
0
Residuals, % 0
0 to 0.5