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Solder Alloy 121 vs. C96300 Copper-nickel

Solder alloy 121 belongs to the otherwise unclassified metals classification, while C96300 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is solder alloy 121 and the bottom bar is C96300 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 11
150
Elastic (Young's, Tensile) Modulus, GPa 21
130
Elongation at Break, % 25
11
Poisson's Ratio 0.43
0.33
Shear Modulus, GPa 7.5
49
Tensile Strength: Ultimate (UTS), MPa 32
580

Thermal Properties

Latent Heat of Fusion, J/g 29
230
Melting Completion (Liquidus), °C 290
1200
Melting Onset (Solidus), °C 230
1150
Specific Heat Capacity, J/kg-K 140
400
Thermal Conductivity, W/m-K 31
37
Thermal Expansion, µm/m-K 28
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
6.1

Otherwise Unclassified Properties

Base Metal Price, % relative 80
42
Density, g/cm3 11
8.9
Embodied Carbon, kg CO2/kg material 5.6
5.1
Embodied Energy, MJ/kg 93
76
Embodied Water, L/kg 580
290

Common Calculations

Stiffness to Weight: Axial, points 1.1
8.2
Stiffness to Weight: Bending, points 8.6
19
Strength to Weight: Axial, points 0.84
18
Strength to Weight: Bending, points 2.1
17
Thermal Diffusivity, mm2/s 20
10
Thermal Shock Resistance, points 3.9
20

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0 to 0.080
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), % 83.4 to 85.5
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), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 14.5 to 15.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.5