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Solder Alloy 704 vs. C14510 Copper

Solder alloy 704 belongs to the otherwise unclassified metals classification, while C14510 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is C14510 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 30
9.1 to 9.6
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
43
Tensile Strength: Ultimate (UTS), MPa 55
300 to 320

Thermal Properties

Latent Heat of Fusion, J/g 62
210
Melting Completion (Liquidus), °C 240
1080
Melting Onset (Solidus), °C 220
1050
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 50
360
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.9
Embodied Carbon, kg CO2/kg material 19
2.6
Embodied Energy, MJ/kg 320
42

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.2
Stiffness to Weight: Bending, points 17
18
Strength to Weight: Axial, points 2.1
9.2 to 10
Strength to Weight: Bending, points 4.3
11 to 12
Thermal Diffusivity, mm2/s 30
100
Thermal Shock Resistance, points 3.5
11 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), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.050
99.15 to 99.69
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 0.050
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0.010 to 0.030
Silver (Ag), % 4.8 to 5.2
0
Tellurium (Te), % 0
0.3 to 0.7
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
0