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Solder Alloy 704 vs. CC380H Copper-nickel

Solder alloy 704 belongs to the otherwise unclassified metals classification, while CC380H copper-nickel 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 704 and the bottom bar is CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
80
Elastic (Young's, Tensile) Modulus, GPa 51
120
Elongation at Break, % 30
26
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 19
47
Tensile Strength: Ultimate (UTS), MPa 55
310

Thermal Properties

Latent Heat of Fusion, J/g 62
220
Melting Completion (Liquidus), °C 240
1130
Melting Onset (Solidus), °C 220
1080
Specific Heat Capacity, J/kg-K 220
390
Thermal Conductivity, W/m-K 50
46
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 15
11

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.9
Embodied Carbon, kg CO2/kg material 19
3.8
Embodied Energy, MJ/kg 320
58

Common Calculations

Stiffness to Weight: Axial, points 3.8
7.8
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 2.1
9.8
Strength to Weight: Bending, points 4.3
12
Thermal Diffusivity, mm2/s 30
13
Thermal Shock Resistance, points 3.5
11

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.010
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
84.5 to 89
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
1.0 to 1.8
Lead (Pb), % 0 to 0.070
0 to 0.030
Manganese (Mn), % 0
1.0 to 1.5
Nickel (Ni), % 0 to 0.010
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 4.8 to 5.2
0
Tin (Sn), % 94.3 to 95.2
0
Zinc (Zn), % 0 to 0.0010
0 to 0.5