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Commercially Pure Silver vs. AWS BCo-1

Commercially pure silver belongs to the otherwise unclassified metals classification, while AWS BCo-1 belongs to the cobalt alloys. There are 15 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is commercially pure silver and the bottom bar is AWS BCo-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Poisson's Ratio 0.37
0.3
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 190 to 340
700

Thermal Properties

Latent Heat of Fusion, J/g 110
420
Melting Completion (Liquidus), °C 960
1150
Melting Onset (Solidus), °C 960
1120
Specific Heat Capacity, J/kg-K 240
480
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.1

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 4.9 to 8.9
24
Strength to Weight: Bending, points 6.9 to 10
22
Thermal Shock Resistance, points 9.5 to 17
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
0.7 to 0.9
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
46 to 54
Iron (Fe), % 0
0 to 1.0
Nickel (Ni), % 0
16 to 18
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
7.5 to 8.5
Silver (Ag), % 99.9 to 100
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
3.5 to 4.5
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5