MakeItFrom.com
Menu (ESC)

Solder Alloy 721 vs. C11600 Copper

Solder alloy 721 belongs to the otherwise unclassified metals classification, while C11600 copper belongs to the copper alloys. 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 solder alloy 721 and the bottom bar is C11600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 17
2.7 to 50
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 50
230 to 410

Thermal Properties

Latent Heat of Fusion, J/g 61
210
Melting Completion (Liquidus), °C 220
1080
Melting Onset (Solidus), °C 210
1030
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 56
390
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
100
Electrical Conductivity: Equal Weight (Specific), % IACS 17
100

Otherwise Unclassified Properties

Density, g/cm3 7.4
9.0
Embodied Carbon, kg CO2/kg material 17
2.7
Embodied Energy, MJ/kg 280
42

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 1.9
7.2 to 13
Strength to Weight: Bending, points 4.1
9.4 to 14
Thermal Diffusivity, mm2/s 34
110
Thermal Shock Resistance, points 3.2
8.2 to 15

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), % 0.8 to 1.2
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0.3 to 0.7
99.78 to 99.915
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
Nickel (Ni), % 0 to 0.010
0
Silver (Ag), % 2.3 to 2.7
0.085 to 0.12
Tin (Sn), % 95 to 96.6
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.1