MakeItFrom.com
Menu (ESC)

Solder Alloy 721 vs. C96300 Copper-nickel

Solder alloy 721 belongs to the otherwise unclassified metals classification, while C96300 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is solder alloy 721 and the bottom bar is C96300 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
130
Elongation at Break, % 17
11
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 19
49
Tensile Strength: Ultimate (UTS), MPa 50
580

Thermal Properties

Latent Heat of Fusion, J/g 61
230
Melting Completion (Liquidus), °C 220
1200
Melting Onset (Solidus), °C 210
1150
Specific Heat Capacity, J/kg-K 220
400
Thermal Conductivity, W/m-K 56
37
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
6.1

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.9
Embodied Carbon, kg CO2/kg material 17
5.1
Embodied Energy, MJ/kg 280
76

Common Calculations

Stiffness to Weight: Axial, points 3.8
8.2
Stiffness to Weight: Bending, points 17
19
Strength to Weight: Axial, points 1.9
18
Strength to Weight: Bending, points 4.1
17
Thermal Diffusivity, mm2/s 34
10
Thermal Shock Resistance, points 3.2
20

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
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0.3 to 0.7
72.3 to 80.8
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0.5 to 1.5
Lead (Pb), % 0 to 0.070
0 to 0.010
Manganese (Mn), % 0
0.25 to 1.5
Nickel (Ni), % 0 to 0.010
18 to 22
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 2.3 to 2.7
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 95 to 96.6
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5