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Solder Alloy 201 vs. AWS BNi-8

Solder alloy 201 belongs to the otherwise unclassified metals classification, while AWS BNi-8 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 201 and the bottom bar is AWS BNi-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 50
180
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 19
67
Tensile Strength: Ultimate (UTS), MPa 41
570

Thermal Properties

Latent Heat of Fusion, J/g 64
390
Melting Completion (Liquidus), °C 240
1010
Melting Onset (Solidus), °C 240
980
Specific Heat Capacity, J/kg-K 220
480
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Density, g/cm3 7.3
7.9
Embodied Carbon, kg CO2/kg material 15
8.2
Embodied Energy, MJ/kg 250
120
Embodied Water, L/kg 1320
220

Common Calculations

Stiffness to Weight: Axial, points 3.8
12
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 1.6
20
Strength to Weight: Bending, points 3.6
19
Thermal Shock Resistance, points 2.7
17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.050
Antimony (Sb), % 4.5 to 5.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.060
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
4.0 to 5.0
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
Manganese (Mn), % 0
21.5 to 24.5
Nickel (Ni), % 0 to 0.010
61.6 to 68.5
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
6.0 to 8.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 94 to 95.5
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5