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Solder Alloy 711 vs. C12900 Copper

Solder alloy 711 belongs to the otherwise unclassified metals classification, while C12900 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 711 and the bottom bar is C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 19
2.8 to 50
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 49
220 to 420

Thermal Properties

Latent Heat of Fusion, J/g 61
210
Melting Completion (Liquidus), °C 220
1080
Melting Onset (Solidus), °C 220
1030
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 58
380
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
98
Electrical Conductivity: Equal Weight (Specific), % IACS 16
98

Otherwise Unclassified Properties

Density, g/cm3 7.4
9.0
Embodied Carbon, kg CO2/kg material 17
2.6
Embodied Energy, MJ/kg 290
41

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 1.8
6.8 to 13
Strength to Weight: Bending, points 4.0
9.1 to 14
Thermal Diffusivity, mm2/s 35
110
Thermal Shock Resistance, points 3.1
7.8 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0 to 0.0030
Arsenic (As), % 0 to 0.030
0 to 0.012
Bismuth (Bi), % 0 to 0.1
0 to 0.0030
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0.3 to 0.7
99.88 to 100
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 to 0.0040
Nickel (Ni), % 0 to 0.010
0 to 0.050
Silver (Ag), % 2.8 to 3.2
0 to 0.054
Tellurium (Te), % 0
0 to 0.025
Tin (Sn), % 95.6 to 96.9
0
Zinc (Zn), % 0 to 0.0010
0