MakeItFrom.com
Menu (ESC)

ASTM B617 Coin Silver vs. R31538 Cobalt

ASTM B617 coin silver belongs to the otherwise unclassified metals classification, while R31538 cobalt belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM B617 coin silver and the bottom bar is R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
220
Elongation at Break, % 1.1 to 22
13 to 23
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 28
86
Tensile Strength: Ultimate (UTS), MPa 290 to 520
1020 to 1360

Thermal Properties

Latent Heat of Fusion, J/g 120
320
Melting Completion (Liquidus), °C 870
1360
Melting Onset (Solidus), °C 780
1290
Specific Heat Capacity, J/kg-K 250
450
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 83
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.1

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.1
15
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 7.7 to 14
34 to 45
Strength to Weight: Bending, points 9.3 to 14
27 to 32
Thermal Shock Resistance, points 14 to 25
25 to 33

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.15 to 0.35
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Copper (Cu), % 9.0 to 10.4
0
Iron (Fe), % 0 to 0.050
0 to 0.75
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0 to 0.010
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 89.6 to 91
0
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.060
0

Comparable Variants