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AWS BCo-1 vs. Solder Alloy 171

AWS BCo-1 belongs to the cobalt alloys classification, while solder alloy 171 belongs to the otherwise unclassified metals. There are 17 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 AWS BCo-1 and the bottom bar is solder alloy 171.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
38
Poisson's Ratio 0.3
0.39
Shear Modulus, GPa 78
14
Tensile Strength: Ultimate (UTS), MPa 700
48

Thermal Properties

Latent Heat of Fusion, J/g 420
47
Melting Completion (Liquidus), °C 1150
180
Melting Onset (Solidus), °C 1120
180
Specific Heat Capacity, J/kg-K 480
190
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 8.0
13
Embodied Energy, MJ/kg 110
210

Common Calculations

Stiffness to Weight: Axial, points 14
2.4
Stiffness to Weight: Bending, points 24
13
Strength to Weight: Axial, points 24
1.5
Strength to Weight: Bending, points 22
3.3
Thermal Shock Resistance, points 21
3.7

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Boron (B), % 0.7 to 0.9
0
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.35 to 0.45
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 1.0
0 to 0.020
Lead (Pb), % 0
34.7 to 36.7
Nickel (Ni), % 16 to 18
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
0
Silver (Ag), % 0
1.8 to 2.2
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
61.5 to 62.5
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.0010
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0